chamber, auxiliary

An auxiliary chamber is an adapter that fits inside the chamber of a gun and allows smaller caliber / gauge / bore ammunition than the gun was designed for to be fired.

aka:

      • auxiliary cartridge

 

Footnotes / Sources:

Glossary ⇒.” Sporting Arms and Ammunition Manufacturers’ Institute. Ed. SAAMI’s Technical Committee. Web. 15-18 Jan. 2011.

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