The Winchester USA 55 grain Full Metal Jacket rifle ammunition crafted by Winchester is made with non-corrosive reloadable brass casing that features boxer primer and designed for recreational shooting. This load travels a muzzle velocity of 3270 feet per second with a muzzle energy of 1306 foot pounds. The full metal jacket consists of a soft core, encased in a harder metal shell to maintain their composure and trajectory for greater penetration and less expansion.
