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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