The 9mm Browning Long (AKA: 9x20mmSR) is a Center Fire cartridge with a Bullet Diameter of 0.355 in” (9.02mm) that is primarily used in Pistols. The 9mm Browning Long originated in Belgium in 1903. The 9mm Browning Long also has a case length of 0.79 in” (20.07mm) and an overall length of 1.1 in” (27.94mm).
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