Federal 5.56x45mm XM193F Ammo 55 Grain Full Metal Jacket Boat Tail Box of 20

LIMITED QUANTITIES AVAILABLE! Federal Ammunition is selling hard to find 223 Remington (5.56mm) that's great for varmint blasting and target shooting. Comes in reloadable brass cases. Please note: This is military ammunition that may be loaded to higher pressures than SAAMI specifications for 223 Remington. Technical Information Muzzle Velocity: 3240 fps Muzzle Energy: 1282 ft. lbs. Note: While, .223 and 5.56 x 45 ammo are interchangeable, the 5.56 may be loaded at higher pressures than .223. SAAMI warns not to use 5.56 ammo in sporter 223 rifles.