High Quality Content by WIKIPEDIA articles! The 7?57mm cartridge, also known as the 7 mm Mauser, 7?57mm Mauser, 7 mm Spanish Mauser in the USA and .275 Rigby in the United Kingdom, was developed by Paul Mauser of the Mauser company in 1892 and adopted as a military cartridge by Spain in 1893. It was subsequently adopted by several other countries as the standard military cartridge. It is recognised as a milestone in modern cartridge design, and although now obsolete as a military cartridge, it remains in widespread international use as a sporting round. The 7?57mm has been deservedly described as "a ballistician´s delight". Many sporting rifles in this calibre were made by British riflemakers, among whom John Rigby was prominent; and, catering for the British preference for calibres to be designated in inches, Rigby called this chambering the .275 Rigby, after the measurement of a 7 mm rifle´s bore across the lands. Данное издание представляет собой компиляцию сведений, находящихся в...