7.92 X 57mm Mauser - Development

Development

The parent cartridge on which the 7.92×57mm Mauser was based was adopted by Germany in 1888 as the Patrone 88 (cartridge 88) or M/88 (along with the Gewehr 1888 service rifle. The M/88 cartridge was loaded with a relatively heavy 14.6 grams (225 gr) round-nosed ball cartridge with a diameter of 8.08 mm (0.318 in) and was designed by the German Gewehr-Prüfungskommission (G.P.K.) (Rifle Testing Commission).

German government driven efforts to improve the performance of the military M/88 ammunition and the service arms in which the M/88 was used resulted in the design by the Gewehr-Prüfungskommission and adaptation in 1905 of the dimensionally redesigned 7.92×57mm Mauser chambering. Besides the chambering, the bore (designated as "S-bore") was also dimensionally redesigned. The 1905 pattern 7.92×57mm Mauser S Patrone (S ball cartridge) was loaded with a lighter 9.9 grams (153 gr), pointed Spitzgeschoß (spitzer bullet) of 8.2 mm (0.323 in) diameter and more powerful double-base smokeless powder. With the improved ballistic coefficient of the new spitzer bullet, the 1905 pattern cartridge had an improved maximum effective range and a flatter trajectory, and was therefore less critical of range estimation compared to the M/88 cartridge.

The rimless cartridge cases have been used as parent case for several other necked down and necked up cartridges and a rimmed variant.

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