FN GUNNER 5.7X28MM 40GR FMJ 50CT The FN 5.7x28mm with three decades of trusted use drastically improves range, accuracy and terminal performance from small arms with the hyper velocity bottleneck pistol cartridge. Train harder and longer with the 40-grain full metal jacketed round that delivers extremely low felt recoil and improved accuracy to put new targets in reach for 5.7 owners. The shooters choice for reliable and cost-effective target ammunition.