The .12 Long Rifle (AKA: .12 Eichelberger Long Rifle, .12-22 Eichelberger Long Rifle, .12 Eichelberger LR) is a Rimfire cartridge with a Bullet Diameter of 0.123 in” (3.12mm) that is primarily used in Rifles. The .12 Long Rifle originated in The United States in (UNKNOWN DATE). The .12 Long Rifle also has a case length of 0.568 in” (14.43mm) and an overall length of (UNKNOWN).
Additional Cartridge Designations: Wildcat Cartridge.
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