Federal XM 5.56mm NATO Steel Core Full Metal Jacket Boat Tail Rifle Ammunition
Federal XM 5.56mm NATO Steel Core Full Metal Jacket Boat Tail Rifle Ammunition. This is the famous and hard to find mil-spec M855 steel core 5.56x45 (in green tip in) penetrator ammo you have heard about. Each round is brass-cased, boxer-primed, non-corrosive, and reloadable. It is both economical and precision manufactured in the United States. 20 rounds per box.
NOTICE: While the 5.56x45mm NATO will fit in a .223 Remington chamber, the 5.56 is a military round that runs at higher pressures than its .223 counterpart and is not recommended to be fired in a .223 Remington chamber.