Firearms Training Glossary

Accuracy

How close hits are to the intended point of aim. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Action

The operating mechanism of a firearm. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Adjustment (Sights)

Changing windage or elevation to align point of aim and impact. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Ammunition

Complete cartridge of bullet, case, primer, and powder. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Aperture Sight

Rear peep sight commonly used on rifles. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

AR Platform

Modular rifle design. Confirm your setup supports safe, consistent handling—controls, sling, and optic height should match how you actually train and shoot.

Further reading: Wikipedia

Assisted Reload

Reload supported by position or gear. Practice manipulations slowly and safely first, then build speed—clean repetitions reduce fumbles under time pressure.

Attachment Point

Location for mounting accessories. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Automatic Safety

Passive safety engaging without user input. This concept ties directly into range safety: follow commands, keep the muzzle controlled, and verify the firearm’s condition before and after drills.

Further reading: Wikipedia

Axis (Bore Axis)

Relationship between barrel line and grip. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

Backstop

Safe structure that stops bullets. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Ballistics

Study of projectile motion. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Benchrest

Supported shooting position. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Bolt

Component that chambers and extracts a cartridge. Confirm your setup supports safe, consistent handling—controls, sling, and optic height should match how you actually train and shoot.

Further reading: Wikipedia

Bolt Carrier Group

Core cycling component in AR rifles. Confirm your setup supports safe, consistent handling—controls, sling, and optic height should match how you actually train and shoot.

Further reading: Wikipedia

Bore

Interior of the barrel. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Bore Sight

Pre-alignment of optic. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Brass

Spent cartridge case. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Break (Trigger)

Moment the trigger releases. In training, focus on a straight-to-the-rear press, managing the break and reset without disturbing the sights.

Further reading: Wikipedia

Buffer

Component absorbing recoil energy. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

Cadence

Rhythm of shots fired. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Caliber

Diameter/designation of bullet and barrel. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Carbine

Short, lightweight rifle. Confirm your setup supports safe, consistent handling—controls, sling, and optic height should match how you actually train and shoot.

Further reading: Wikipedia

Cartridge

Complete round of ammunition. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Chamber

Area holding cartridge before firing. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Cheek Weld

Consistent cheek placement. Use repeatable body structure (bone support over muscle tension) to stabilize the gun and reduce wobble.

Chronograph

Measures bullet velocity. Ballistic data becomes useful when it’s based on real measurements—verify with groups at known distances and keep notes.

Further reading: Wikipedia

Clear (Weapon)

Condition where firearm is unloaded. This concept ties directly into range safety: follow commands, keep the muzzle controlled, and verify the firearm’s condition before and after drills.

Further reading: Wikipedia

Click Value

Adjustment per optic click. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Cold Bore Shot

First shot from cold barrel. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Dry Fire

Training without live ammunition. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Drop

Vertical bullet movement. Ballistic data becomes useful when it’s based on real measurements—verify with groups at known distances and keep notes.

Double Action

Trigger cocks and releases. In training, focus on a straight-to-the-rear press, managing the break and reset without disturbing the sights.

Further reading: Wikipedia

Dot Sight

Reflex optic with illuminated dot. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Drift

Horizontal bullet movement from wind. Learning to read wind and apply simple holds or clicks is a key step when you move from short to longer distances.

Duty Ammo

Selected service ammunition. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Detent

Small spring-loaded component. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Dope

Recorded ballistic data. Ballistic data becomes useful when it’s based on real measurements—verify with groups at known distances and keep notes.

Drill

Structured shooting exercise. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Dust Cover

Protective ejection port cover. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Ejection

Process of expelling brass. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Ejector

Part pushing brass out. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Elevation

Vertical sight adjustment. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

End Plate

Rear AR receiver plate. Confirm your setup supports safe, consistent handling—controls, sling, and optic height should match how you actually train and shoot.

Further reading: Wikipedia

Energy

Kinetic energy of projectile. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Ergonomics

How controls fit shooter. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Eye Relief

Distance from eye to optic. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Extractor

Claw pulling case from chamber. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Empty Chamber Indicator

Shows unloaded chamber. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Equipment Setup

Personal gear configuration. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Failure to Feed

Cartridge does not chamber. Train a consistent diagnostic mindset: identify the type of malfunction and apply the correct clearing process while keeping the muzzle in a safe direction.

Further reading: Wikipedia

Failure to Fire

No shot after trigger pull. In training, focus on a straight-to-the-rear press, managing the break and reset without disturbing the sights.

Further reading: Wikipedia

Failure to Eject

Brass not expelled. Train a consistent diagnostic mindset: identify the type of malfunction and apply the correct clearing process while keeping the muzzle in a safe direction.

Further reading: Wikipedia

Feed Ramp

Guides cartridge into chamber. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Field of View

Visible area through optic. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Finger Discipline

Finger off trigger until ready. In training, focus on a straight-to-the-rear press, managing the break and reset without disturbing the sights.

Further reading: Wikipedia

Flash Hider

Reduces muzzle flash. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

Flat Range

Range without movement. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Follow Through

Maintain sights after shot. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Free Float

Barrel isolated from handguard. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Gas System

Uses gas to cycle action. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Gas Block

Regulates gas flow. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Grip

How shooter holds firearm. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

Grip Angle

Angle of pistol grip. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

Group

Cluster of hits on target. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Gun Handling

Safe firearm manipulation. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Gauge

Shotgun bore measurement. If you train with a shotgun, confirm patterning at realistic distances; the same load can behave very differently depending on choke and ammo.

Further reading: Wikipedia

Gloves

Hand protection affecting grip. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

Gas Rings

Sealing rings on AR bolt. Confirm your setup supports safe, consistent handling—controls, sling, and optic height should match how you actually train and shoot.

Further reading: Wikipedia

Green Tip

Steel-penetrator ammo term. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Hammer

Strikes firing pin. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Hangfire

Delayed ignition. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Handguard

Fore-end covering barrel. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Headspace

Distance between bolt and chamber. Confirm your setup supports safe, consistent handling—controls, sling, and optic height should match how you actually train and shoot.

Further reading: Wikipedia

Heat Management

Managing barrel heat. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

High Ready

Muzzle-up ready position. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

Holster

Pistol carrying device. Holster work must prioritize safety: full trigger coverage, slow reholstering, and consistent indexing on the draw.

Further reading: Wikipedia

Holdover

Aim above target. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Holdoff

Aim into wind. Learning to read wind and apply simple holds or clicks is a key step when you move from short to longer distances.

Hearing Protection

Protects hearing. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Impact

Where bullet strikes. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Indexing

Consistent reference point. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Iron Sights

Traditional front and rear sights. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Intermediate Caliber

Mid-size rifle cartridge. Confirm your setup supports safe, consistent handling—controls, sling, and optic height should match how you actually train and shoot.

Further reading: Wikipedia

Instructor

Qualified shooting trainer. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Illuminated Reticle

Lit optic reticle. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Inspection

Routine firearm check. Simple maintenance routines improve reliability—keep critical friction points lubricated and inspect wear items before they cause stoppages.

Isosceles Stance

Symmetrical pistol stance. For pistols, consistency comes from grip, trigger control, and sight tracking—small differences here show up quickly on target.

Further reading: Wikipedia

In-Battery

Action fully closed. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

IFAK

First aid kit on range. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Joule

Unit of energy. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Jam

Informal malfunction term. Train a consistent diagnostic mindset: identify the type of malfunction and apply the correct clearing process while keeping the muzzle in a safe direction.

Further reading: Wikipedia

Jacketed Bullet

Metal-jacket projectile. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Jaw Weld

Consistent jaw placement. Use repeatable body structure (bone support over muscle tension) to stabilize the gun and reduce wobble.

Judging Distance

Estimating target range. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Jig

Assembly or gunsmithing tool. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Jump (Bullet)

Free travel before rifling. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Justification

Reason for training choice. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Joint Zero

Shared zero standard. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Jerk (Trigger)

Sudden trigger pull. In training, focus on a straight-to-the-rear press, managing the break and reset without disturbing the sights.

Further reading: Wikipedia

Kneeling Position

Supported kneeling stance. Use repeatable body structure (bone support over muscle tension) to stabilize the gun and reduce wobble.

KeyMod

Accessory mounting system. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Kinetic Energy

Energy of moving bullet. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Knockdown

Informal target reaction term. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Kit

Shooter equipment set. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Keyholing

Bullet strikes sideways. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Known Distance

Measured target range. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Kydex

Thermoplastic holster material. Holster work must prioritize safety: full trigger coverage, slow reholstering, and consistent indexing on the draw.

Further reading: Wikipedia

Keep It Simple

Avoid unnecessary complexity. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Knee Pad

Protection for kneeling. Use repeatable body structure (bone support over muscle tension) to stabilize the gun and reduce wobble.

Lead

Aiming ahead of moving target. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Length of Pull

Trigger-to-butt distance. In training, focus on a straight-to-the-rear press, managing the break and reset without disturbing the sights.

Further reading: Wikipedia

Light (Weapon)

Mounted illumination. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Live Fire

Training with ammunition. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Lock Time

Delay before firing. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Low Ready

Muzzle-down ready position. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

Loading

Inserting ammunition. Practice manipulations slowly and safely first, then build speed—clean repetitions reduce fumbles under time pressure.

Further reading: Wikipedia

Lubrication

Applying oil or grease. Simple maintenance routines improve reliability—keep critical friction points lubricated and inspect wear items before they cause stoppages.

Lying (Prone)

Ground shooting position. Use repeatable body structure (bone support over muscle tension) to stabilize the gun and reduce wobble.

Laser

Aiming light device. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Magazine

Feeds cartridges. Practice manipulations slowly and safely first, then build speed—clean repetitions reduce fumbles under time pressure.

Further reading: Wikipedia

Magazine Release

Ejects magazine. Practice manipulations slowly and safely first, then build speed—clean repetitions reduce fumbles under time pressure.

Further reading: Wikipedia

Malfunction

Failure to operate. Train a consistent diagnostic mindset: identify the type of malfunction and apply the correct clearing process while keeping the muzzle in a safe direction.

Further reading: Wikipedia

Manual Safety

User-operated safety. This concept ties directly into range safety: follow commands, keep the muzzle controlled, and verify the firearm’s condition before and after drills.

Further reading: Wikipedia

Mechanical Offset

Optic-to-bore height. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

MOA

Minute of angle unit. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Muzzle Discipline

Safe muzzle direction. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

Muzzle Velocity

Speed at muzzle. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

Muzzle Device

Barrel-end attachment. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

Maintenance

Routine firearm care. Simple maintenance routines improve reliability—keep critical friction points lubricated and inspect wear items before they cause stoppages.

Natural Point of Aim

Body alignment without muscle. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Negligent Discharge

Unintentional firing. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Night Sights

Low-light visible sights. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Non-Dominant Eye

Opposite eye. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

No-Go Gauge

Headspace tool. If you train with a shotgun, confirm patterning at realistic distances; the same load can behave very differently depending on choke and ammo.

Further reading: Wikipedia

Noise Discipline

Managing sound. This concept ties directly into range safety: follow commands, keep the muzzle controlled, and verify the firearm’s condition before and after drills.

Further reading: Wikipedia

Notch

Rear sight opening. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Numbered Target

Target with zones. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Nylon Gear

Synthetic equipment. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Normalization

Adaptation through training. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Optic

Sight with lenses or electronics. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Optic Mount

Attaches optic to firearm. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Offset Sights

Secondary angled sights. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Open Sights

Traditional irons. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Overtravel

Trigger movement after break. In training, focus on a straight-to-the-rear press, managing the break and reset without disturbing the sights.

Further reading: Wikipedia

Overgassed

Excess gas condition. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Observation

Watching sights and target. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Orientation

Understanding direction. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Overall Length

Total firearm length. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Operator Error

Shooter-caused mistake. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Parallax

Reticle shift with eye movement. Correct setup matters: mount optics to your natural head position so the sight picture appears instantly and consistently.

Further reading: Wikipedia

Passive Safety

Automatic safety system. This concept ties directly into range safety: follow commands, keep the muzzle controlled, and verify the firearm’s condition before and after drills.

Further reading: Wikipedia

Patrol Rifle

General-purpose rifle. Confirm your setup supports safe, consistent handling—controls, sling, and optic height should match how you actually train and shoot.

Further reading: Wikipedia

Pattern

Shotgun pellet spread. If you train with a shotgun, confirm patterning at realistic distances; the same load can behave very differently depending on choke and ammo.

Further reading: Wikipedia

Penetration

Ability to pass through material. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Picatinny Rail

Standard mounting rail. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Pistol

Handgun. For pistols, consistency comes from grip, trigger control, and sight tracking—small differences here show up quickly on target.

Further reading: Wikipedia

Point of Aim

Where sights align. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Point of Impact

Where bullet hits. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Prone

Lying shooting position. Use repeatable body structure (bone support over muscle tension) to stabilize the gun and reduce wobble.

Qualification

Standardized shooting test. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Quick Detach

Fast removal system. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Quick Reload

Rapid magazine change. Practice manipulations slowly and safely first, then build speed—clean repetitions reduce fumbles under time pressure.

Further reading: Wikipedia

Quiet Range

Cold range condition. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Quality Ammo

Consistent ammunition. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Quartering Wind

Angled wind. Learning to read wind and apply simple holds or clicks is a key step when you move from short to longer distances.

Quenching

Rapid cooling. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Quick Check

Short safety inspection. Simple maintenance routines improve reliability—keep critical friction points lubricated and inspect wear items before they cause stoppages.

Qualified Instructor

Certified trainer. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Queue

Order of shooters. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Range Commands

Verbal safety instructions. This concept ties directly into range safety: follow commands, keep the muzzle controlled, and verify the firearm’s condition before and after drills.

Further reading: Wikipedia

Range Officer

Supervises firing line. This concept ties directly into range safety: follow commands, keep the muzzle controlled, and verify the firearm’s condition before and after drills.

Further reading: Wikipedia

Recoil

Rearward movement. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

Red Dot

Reflex optic. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Reload

Replacing magazine. Practice manipulations slowly and safely first, then build speed—clean repetitions reduce fumbles under time pressure.

Further reading: Wikipedia

Reliability

Consistent function. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Retention

Holster security. Holster work must prioritize safety: full trigger coverage, slow reholstering, and consistent indexing on the draw.

Further reading: Wikipedia

Rifle

Shoulder-fired firearm. Confirm your setup supports safe, consistent handling—controls, sling, and optic height should match how you actually train and shoot.

Further reading: Wikipedia

Rimfire

Rim-ignited cartridge. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Run the Gun

Operate through drill. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Safety Rules

Fundamental firearm rules. This concept ties directly into range safety: follow commands, keep the muzzle controlled, and verify the firearm’s condition before and after drills.

Further reading: Wikipedia

Selector

Fire mode switch. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Semi-Automatic

One shot per trigger pull. In training, focus on a straight-to-the-rear press, managing the break and reset without disturbing the sights.

Further reading: Wikipedia

Sight Alignment

Front/rear sight relationship. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Sight Picture

Aligned sights on target. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Single Action

Trigger releases hammer. In training, focus on a straight-to-the-rear press, managing the break and reset without disturbing the sights.

Further reading: Wikipedia

Sling

Rifle carrying strap. Confirm your setup supports safe, consistent handling—controls, sling, and optic height should match how you actually train and shoot.

Further reading: Wikipedia

Slow Fire

Deliberate shooting. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Stance

Body position. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Stock

Rifle shoulder support. Confirm your setup supports safe, consistent handling—controls, sling, and optic height should match how you actually train and shoot.

Further reading: Wikipedia

Target

Object being shot. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Trigger

Control releasing shot. In training, focus on a straight-to-the-rear press, managing the break and reset without disturbing the sights.

Further reading: Wikipedia

Trigger Control

Smooth trigger movement. In training, focus on a straight-to-the-rear press, managing the break and reset without disturbing the sights.

Further reading: Wikipedia

Training Block

Planned session. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Transition

Switch between targets. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Trajectory

Bullet flight path. Ballistic data becomes useful when it’s based on real measurements—verify with groups at known distances and keep notes.

Further reading: Wikipedia

Turret

Optic adjustment knob. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Two-Handed Grip

Standard pistol grip. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

Timed Drill

Exercise with time limit. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Thermal Shift

Heat-related POI change. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Unload

Remove ammunition. Practice manipulations slowly and safely first, then build speed—clean repetitions reduce fumbles under time pressure.

Further reading: Wikipedia

Upright Stance

Balanced posture. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Upward Pressure

Support hand force. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Uniform Ammo

Same ammunition lot. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Universal Safety Rules

Widely accepted rules. This concept ties directly into range safety: follow commands, keep the muzzle controlled, and verify the firearm’s condition before and after drills.

Further reading: Wikipedia

Utility Rifle

General-purpose rifle. Confirm your setup supports safe, consistent handling—controls, sling, and optic height should match how you actually train and shoot.

Further reading: Wikipedia

Undertravel

Insufficient trigger movement. In training, focus on a straight-to-the-rear press, managing the break and reset without disturbing the sights.

Further reading: Wikipedia

Upper Receiver

Top AR component. Confirm your setup supports safe, consistent handling—controls, sling, and optic height should match how you actually train and shoot.

Further reading: Wikipedia

User Setup

Personal configuration. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Unintentional Shot

Shot without intent. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Velocity

Speed of bullet. Ballistic data becomes useful when it’s based on real measurements—verify with groups at known distances and keep notes.

Further reading: Wikipedia

Vertical Stringing

Vertical hit pattern. If you train with a shotgun, confirm patterning at realistic distances; the same load can behave very differently depending on choke and ammo.

Further reading: Wikipedia

Visual Focus

Eye focus management. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Verification

Confirming setup. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Vibration

Movement affecting accuracy. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Visibility

Clarity of sights/target. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Volume of Fire

Number of rounds. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Vise

Holding tool. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Visual Index

Alignment reference. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Variable Optic

Adjustable scope. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Wind

Air movement. Learning to read wind and apply simple holds or clicks is a key step when you move from short to longer distances.

Wind Call

Estimated wind correction. Learning to read wind and apply simple holds or clicks is a key step when you move from short to longer distances.

Windage

Horizontal adjustment. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Further reading: Wikipedia

Work Space

Reload/manipulation area. Practice manipulations slowly and safely first, then build speed—clean repetitions reduce fumbles under time pressure.

Weapon Light

Mounted light. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Wear Points

High-friction areas. Simple maintenance routines improve reliability—keep critical friction points lubricated and inspect wear items before they cause stoppages.

Wobble Zone

Natural sight movement. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Further reading: Wikipedia

Warm-Up

Initial practice. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Witness Mark

Paint reference line. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Wraparound Grip

Grip style. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

X-Ring

Center target zone. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

X-Count

Number of center hits. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

X-Frame

Large revolver frame. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

X-Axis

Horizontal reference. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

X-Check

Safety cross-check. This concept ties directly into range safety: follow commands, keep the muzzle controlled, and verify the firearm’s condition before and after drills.

Further reading: Wikipedia

eXposure

Time firearm is presented. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

eXecution

Carrying out drill. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

eXact Zero

Precisely confirmed zero. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

eXcess Lube

Too much lubrication. Simple maintenance routines improve reliability—keep critical friction points lubricated and inspect wear items before they cause stoppages.

eXperience Level

Shooter skill class. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Yard

Imperial distance unit. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Yaw

Bullet oscillation. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Yield

Giving priority to safety. This concept ties directly into range safety: follow commands, keep the muzzle controlled, and verify the firearm’s condition before and after drills.

Further reading: Wikipedia

Young Shooter

Junior participant. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Yoke Grip

Support hand grip. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

Yes/No Drill

Binary decision drill. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Your Target

Assigned target. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Your Zero

Personal zero. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Yielding Trigger

Smooth trigger press. In training, focus on a straight-to-the-rear press, managing the break and reset without disturbing the sights.

Further reading: Wikipedia

Yearly Qualification

Annual standard. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Zero

Aligned point of aim/impact. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Zero Distance

Range of zero. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Zero Stop

Turret limit feature. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Zone

Target area. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Zone Drill

Area-focused exercise. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Zipper Target

Vertical drill target. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Zonal Awareness

Understanding target zones. In training, the goal is repeatability—use measurable standards (time, hits, and consistency) to track progress.

Zen Grip

Relaxed grip concept. A solid stance and consistent grip pressure help you manage recoil and return the sights to the target for controlled follow-up shots.

Further reading: Wikipedia

Zero Confirmation

Re-checking zero. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.

Zero Shift

Change in point of impact. Record your settings and confirm them regularly; small changes in ammo, distance, or mounting can shift point of impact.