.45 Auto Rim

The .45 Auto Rim, a.k.a. 11.5x23R is a rimmed cartridge specifically designed to be fired in revolvers originally chambered for the .45 ACP cartridge. The Peters Cartridge Company developed the cartridge in 1920 for use in the M1917 revolver, large numbers of which had become available as surplus following the end of World War I. The round is currently still in production by Corbon in their DPX and Performance Match lines of ammunition and is also manufactured by Georgia Arms.

.45 Auto Rim

The .45 Auto Rim, a.k.a. 11.5x23R is a rimmed cartridge specifically designed to be fired in revolvers originally chambered for the .45 ACP cartridge. The Peters Cartridge Company developed the cartridge in 1920 for use in the M1917 revolver, large numbers of which had become available as surplus following the end of World War I. The round is currently still in production by Corbon in their DPX and Performance Match lines of ammunition and is also manufactured by Georgia Arms.