7×57

7×57

The 7×57 (or 7mm Mauser, or .275 Rigby) is most famously known as an elephant calibre, but it started life as a military cartridge in 1892, designed by German firm Mauser. It was adopted by the Spanish military, initially chambered with 173-grain bullets, but its adoption by other governments saw a range of new weights loaded from 139-grain upwards.

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