These are the standard American low pressure factory loads. Federal and PMC also load 175 grain RN bullets at a MV of 2440 fps and ME of 2315 ft. Winchester loads a 145 grain spitzer to the same MV for a ME of 2279 ft. 248) at a muzzle velocity (MV) of 2,660 fps and muzzle energy (ME) of 2,199 ft. 275 Rigby (as he called the 7x57) for its accuracy and low recoil and report.Ĭurrent ammunition catalogs from PMC, Remington and Federal show loads for the 7x57 He used the 175 grain FMJ bullet for brain shots, and liked the. Bell, perhaps the most famous of all African commercial ivory hunters, killed the majority of his over 1000 elephants with the 7x57. Ammunition is manufactured and sold in Europe, Africa, North America and most Under both names the cartridge was used extensively for plains and mountain game in Africa and Asia. Many bolt action rifles built in the UK were so marked. In Great Britain the 7x57 became so popular that the John Rigby Company adopted it as the. In Europe, Serbia adopted the cartridge, and it became a popular sporting cartridge all over Europe. Subsequently, several Latin American countries adopted the 7x57, including Mexico. The 7x57 was developed by the famous German firm of Mauser in 1892, and adopted by the Spanish government in 1893.