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Pump Action

Definition

A manually operated firearm mechanism cycled by movement of the fore-end, also called slide action. It occurs in rifles and shotguns. The label describes operation, not a universal case-mark pattern, cartridge type, legal category or proof of unlawful possession.

The fore-end movement cycles a manual action, but locking, feed and extraction arrangements vary between designs. Examine the actual firearm and evidence. A pump label alone does not identify one cartridge, guarantee a deep extraction mark or resolve the applicable legal category.

Related terms

Bolt-Action Firearm
A firearm whose breech mechanism is cycled manually through movement of a bolt. Turning and straight-pull designs differ, as do locking and...
Combination Gun
A firearm combining barrels for different ammunition or bore arrangements, such as a rifle and shotgun barrel. Evidence from different barrels can...
Drilling
A three-barrel firearm arrangement, commonly combining shotgun and rifle barrels but not limited to one layout or chambering. The actual barrels, selector...
Shot Pattern
The distribution of shot impacts on a documented target. Firearm, choke, ammunition, distance, target geometry and recovery affect its interpretation. Suitable controlled...
Shotgun Wad
A shotshell component or assembly that can separate propellant from the load, seal gases and support or contain shot according to design....

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