The 10 millimeter bullet measures 10.17mm (.400 inch) and sits in a rimless, straight-walled casing that’s.992 inch long. Together, they measure 1.250 inches, according to the Sporting Arms and Ammunition Manufacturers’ Institute (SAAMI).
The 10 millimeter bullet measures 10.17mm (.400 inch) and sits in a rimless, straight-walled casing that’s.992 inch long. Together, they measure 1.250 inches, according to the Sporting Arms and Ammunition Manufacturers’ Institute (SAAMI).