Caliber


The internal diameter of a firearm’s barrel or the bullet’s diameter (e.g., .223, .308).

Related Terms

Centerfire Ammunition


Ammo with a primer located in the center of the cartridge base, used in most rifles and handguns.


View Term: Centerfire Ammunition

Magnum Load


A more powerful ammunition load with extra powder, yielding higher velocities and energy for larg...


View Term: Magnum Load

Foot-Pounds of Energy (FPE)


A measurement of a bullet’s kinetic energy at impact, indicating stopping power for hunting.


View Term: Foot-Pounds of Energy (FPE)

Cartridge


A self-contained unit of ammunition with primer, propellant, bullet/shot, and casing.


View Term: Cartridge

Muzzle Velocity


The speed of a projectile as it exits the barrel, measured in feet per second (fps); higher veloc...


View Term: Muzzle Velocity

Muzzle Energy


The kinetic energy of a projectile at the instant it leaves the barrel; higher muzzle energy ofte...


View Term: Muzzle Energy

Handgun


A short-barreled firearm (pistol or revolver) designed for one-handed operation; often requires s...


View Term: Handgun

Barrel


The metal tube through which a projectile travels when a firearm is fired; length and rifling aff...


View Term: Barrel

Hollow Point


A bullet design featuring a cavity in the tip for controlled expansion, increasing its effectiven...


View Term: Hollow Point

Sectional Density


The ratio of a bullet’s weight to its cross-sectional area; higher sectional density often transl...


View Term: Sectional Density

Brush Gun


A short, large-caliber rifle designed for quick handling and performance in thick cover.


View Term: Brush Gun

Cartridge Components


The parts of a cartridge: primer, propellant (powder), projectile (bullet), and casing.


View Term: Cartridge Components

Ammunition


Cartridges or shells containing primer, powder, projectile, and casing.


View Term: Ammunition

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