7.65mm Firearms
7.65mm may refer to the following firearms cartridges: * .32 ACP (7.65×17mm Browning) * 7.65mm Roth–Sauer * 7.65×20mm Longue * 7.65×21mm Parabellum * 7.65×21mm Mannlicher * 7.65×25mm Borchardt * 7.65×53mm Mauser The 7.65×53mm Mauser (designated as the 7,65 × 53 Arg. by the C.I.P.) is a first-generation smokeless powder Rim (firearms), rimless bottlenecked rifle Cartridge (firearms), cartridge developed for use in the Mauser Model 1889 rifle by Paul Maus ...

32 ACP
.32 ACP (Automatic Colt Pistol, also known as .32 Automatic) is a centerfire pistol cartridge. It is a semi-rimmed, straight-walled cartridge developed by firearms designer John Browning, initially for use in the FN M1900 semi-automatic pistol. It was introduced in 1899 by Fabrique Nationale, and is also known as the 7.65×17mmSR Browning or 7.65 mm Browning Short. History John Browning engineered a number of modern semi-automatic pistol mechanisms and cartridges. As his first pistol cartridge, the .32 ACP needed a straight wall for reliable blowback operation as well as a small rim for reliable feeding from a box magazine. The cartridge headspaces on the rim.Wilson, R. K. ''Textbook of Automatic Pistols'', p.254. Plantersville, SC: Small Arms Technical Publishing Company, 1943. The cartridge was a success and was adopted by dozens of countries and many governmental agencies. When the .32 ACP cartridge was introduced, it was immediately popular and was available in sev ...
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