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Gun Glossary

Return to Gun Reference

Welcome to the ArmsVault Gun Glossary. Click on the gun term to be taken to the definition.

• 2nd Amendment

• Accuracy

• Action

• Adjustable Objective

• Air Resistance

• Annealing

• Antimony

• Anvil

• Ball

• Ball Powder

• Ballistic Coefficient - BC

• Ballistics

• Barrel-Cylinder Gap

• Battery Cup

• Bearing Surface

• Bedding

• Bell

• Belted Case

• Bench Rest

• Berdan

• Black Powder

• Boat Tail

• Body (of a case)

• Bolt

• Bolt Thrust

• Bore

• Bore Sight

• Boxer

• Brass

• Brisance

• Bullet

• Bullet Path

• Bullet Pull

• Bullet Puller

• Bullet Runout

• Bump Fire

• Burning Rate

• Caliber

• Canister Powder

• Cannelure

• Cant

• Cartridge

• Case

• Case Forming

• Case Hardening

• Case Trimming

• Cast Bullet

• Center Fire

• Chamber

• Chamber Cast

• Chamfer

• Charge

• Chief Range Officer - CRO

• Choke

• Chronograph

• Clip

• Collimator

• Combustion

• Compensator

• Components

• Compressed Charge

• Concentricity Gauge

• Copper Crusher

• Cordite

• Core

• Corrosion

• Corrosive Primer

• Crimp

• Crimped Primer

• Cupro-Nickel

• Deburr

• Decap

• Deprime

• Deterrent Coating

• Die

• Double-base Powder

• Drag

• Dram Equivalent

• Drift

• Drop

• Duplex Load

• Elevation

• Energy

• Engraving

• Erosion

• Expander Ball

• Expansion Ratio

• Extruded Primer

• Extruded Tubular Powder

• Extrusion

• Feet per Second - FPS

• Field Strip

• Fireform

• Firing Pin

• Flake Powder

• Flash Hole

• Foot-pound

• Forcing Cone

• Form Factor

• Freebore

• Frontal Ignition

• Full Metal Jacket - FMJ

• Galling

• Gas

• Gas Check

• Gas Ram

• Gauge

• Gilding Metal

• Grain

• Grand Slam

• Granulation

• Grease Groove

• Grooves

• Group

• Gun Powder

• Gun Show

• Half-jacket

• Handloading

• Hangfire

• Headspace

• Heel

• Holdover

• Hollow Point - HP

• Hot-Cor

• Hydrostatic Shock

• Ignition

• Improved

• Improved Military Rifle - IMR

• Incendiary Bullet

• Ingalls' Tables

• International Handgun Metallic Silhouette Association - IHMSA

• International Practical Shooting Confederation - IPSC

• Jacket

• K (used as a prefix)

• Keyhole

• Lands

• Lead Crusher

• Leade

• Leading

• Line of Departure

• Line of Sight - LOS

• Loading Block

• Loading Density

• Lock Time

• Locking Lugs

• Lubricant

• Lubricator-Sizer

• Magnum

• Magazine

• Mean Radius - MR

• Meplat

• Mercuric Primer

• Metal Case - MC

• Metal Fouling

• Micrometer

• Mid-range Trajectory - MRT

• Military Specification - MIL-SPEC

• Minute-of-angle - MOA

• Misfire

• Moderator

• Molon Labe - ΜΟΛΩΝ ΛΑΒΕ

• Mould Blocks

• Mushroom

• Muzzle

• Muzzle Blast

• Muzzle Brake

• Muzzle Energy - ME

• Muzzle Pressure

• Muzzle Velocity - MV

• National Bench Rest Shooters Association - NBRSA

• National Firearms Act - NFA

• National Range Officers Institute - NROI

• National Reloading Manufacturers' Association - NRMA

• National Rifle Association - NRA

• National Shooting Sports Foundation - NSSF

• Neck

• Neck Down or Up

• Neck Expansion

• Neck Ream

• Neck Size

• Neck Turn

• Non-corrosive

• Non-mercuric

• Ogive

• Oil Dent

• Overbore Capacity

• Parallax

• Patched Bullet

• Pattern

• Pierced Primer

• Plinking

• Pneumatic

• Point of Aim

• Port Pressure

• Powder

• Powder Bridging

• Powder Measure

• Powder Scale

• Powder Trickler

• Pressure

• Pressure Gun

• Pressure-Velocity Ratio

• Primer

• Primer Flipper

• Primer Indent

• Primer Leak

• Primer Pocket

• Primer Pocket Reaming

• Primer Pocket Swaging

• Primer Punch

• Priming Tool

• Progressive Burning

• Progressive Reloading Press

• Projectile

• Proof Cartridge

• Propellant

• Protruding Primer

• Ram

• Range

• Range Conducting Officer - RCO

• Range Master

• Range Officer - RO

• Range Safety Officer - RSO

• Ream

• Rebated Rim

• Receiver

• Recoil

• Recoil Buffer

• Reloading Press

• Remaining Energy

• Remaining Velocity

• Reticle

• Rifleman's Creed

• Rifling

• Rim

• Rimfire - RF

• Rimless

• Rimmed

• Round

• Round Nose

• Rupture

• Sabot

• Seating Depth

• Second Amendment

• Sectional Density

• Shell Holder

• Shock Wave

• Shooting Range

• Shot

• Shoulder

• Sighting in

• Single-base Powder

• Single-stage Reloading Press

• Sizing

• Slug

• Small Arms and Ammunition Manufacturers Institute - SAAMI

• Smoke Wagon

• Smokeless Powder

• Soft Point - SP

• Spent

• Spin

• Spire Point

• Spitzer

• Stabilize

• Straw Purchasing

• Swage

• Swaging

• Target

• Target Turrets

• Throat

• Time of Flight - TOF

• Tracer Ammunition

• Trajectory

• Transducer

• Twist

• United States Practical Shooting Association - USPSA

• Upset

• Varmint

• Velocity

• Vernier Caliper

• Wad

• Wadcutter

• Web

• Winchester Center Fire - WCF

• Wildcat

• Wind Deflection

• Windage

• Work-hardening

• Working-up

• Yaw

• Zero Range

• Zero Sight Adjustment