Norma Range & Training Ammunition 357 Magnum 158 Grain Full Metal Jacket. Made to be versatile enough for all shooters, Norma’s Range & Training FMJ Line is a perfect marriage of the quality that you expect from Norma, but at a price that allows you to shoot as often as you like. As Norma continues its mission of providing the best ammunition solutions on the market, Norma now sets its sights on Range & Training ammunition. Never settling for “good enough”, Norma’s line of Range & Training ammunition boasts consistency, reliability, and the excellent quality control standards that Norma is known for. This ammunition is new production, non-corrosive, in boxer-primed, reloadable brass cases.