The 9×22 MJR (AKA: 9x22mm Major, 9mm Horst H. Grill Mayer, 9mm MFS Grill,9×22 9mm) is a Center Fire cartridge with a Bullet Diameter of 0.355 in” (9.02mm) that is primarily used in Pistols. The 9×22 MJR originated in Austria in 1991. The 9×22 MJR also has a case length of 0.866 in” (22mm) and an overall length of 1.141 in” (28.98mm).
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