|Bullet Weight||55 Grain|
|Bullet Type||Full Metal Jacket (FMJ)|
|Muzzle Velocity (fps)||3270|
|Muzzle Energy (ft lbs)||1306|
|Cost Per Round||67.0¢ per round|
This 5.56x45 cartridge performs exactly like any AR owner should be accustomed to. Loaded with a 55 grain FMJ bullet and to a muzzle velocity of 3,270 fps, it’s nearly indistinguishable from the Army’s M193 ball round. The aerodynamic FMJ bullet will remain supersonic way, way beyond the 5.56’s effective range, and its ability to transfer over 450 ft lbs of energy at 400 yards makes it indisputably effective for self-defense even if it can’t offer terminal expansion. Where the FMJ’s cost-effective design excels is in its reliability – easy feeding, low lead fouling, and target grade accuracy.
Winchester’s brass is consistently drawn and tapered to function fluidly in any firearm’s action, and their sensitive primer and clean burning propellant promote steady chamber pressures and muzzle velocities. A great choice for any AR-15! (Please note that rifles chambered for 223 Rem exclusively are not designed for 5.56.)