Headspace


The gap between the cartridge base and the firearm’s breech face; improper headspace can cause malfunctions or pressure issues.

Related Terms

Action (Firearm)


The mechanism that loads, fires, and ejects cartridges (e.g., bolt, pump, lever).


View Term: Action (Firearm)

Cartridge


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


View Term: Cartridge

Firearm Safety Rules


The core guidelines: treat every gun as loaded, muzzle in safe direction, finger off trigger unti...


View Term: Firearm Safety Rules

Hinged Floorplate


A feature on some bolt-action rifles where the magazine floorplate swings open for quick unloadin...


View Term: Hinged Floorplate

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