5.6×50mm Magnum
The 5.6×50mm Magnum (designated as the 5,6 × 50 Mag. by the C.I.P.) is a centerfire, rimless, bottlenecked rifle cartridge that was developed in 1970 by Günter Frères of the Deutsche Waffen und Munitionsfabriken (DWM). Parent case. In 1986 Günter Frères developed the parent case, the rimmed 5.6x50mmR Magnum (designated 5,6 x 50 R Mag. by the C.I.P. According to the official C.I.P ruling, the rimless 5.6x50mm Magnum can handle up to P piezo pressure, which is more than the rimmed parent case developed four years prior. Uses. The 5.6×50mm Magnum and 5.6×50mmR Magnum  cartridges were developed in Germany as legal hunting cartridges for small game, fox, chamois and roe deer at ranges up to and over . In North America it is considered a varmint hunting cartridge. Related cartridges. This cartridge occupies a useful performance niche approximately halfway between the .222 Remington and the 5.6×57mm, similar to the slightly less powerful .222 Remington Magnum and the .223 Remington.