It is FAST! It is ACCURATE! It is VERSATILE! Superformance Match Ammunition achieves muzzle velocities of 100 – 200 fps faster than ANY conventional ammunition. Amazing ammunition performance starts with outstanding bullets, and Hornady AMAX and Boattail Hollow Point Match bullets, now featuring revolutionary new AMP® (Advanced Manufacturing Process) bullet jackets, raise the standard. Topped with the finest bullets, Superformance Match ammunition marries the very best cartridge cases with extremely stable propellants that are custom blended for each individual load to provide TRUE ammunition performance enhancement. Highpower competitors, as well as law enforcement and military shooters and snipers will all benefit from the Superformance Match advantage – higher muzzle velocity, phenomenal accuracy, increased range and reduced wind drift. Superformance Match – the limits have been broken!Please Note: While the 5.56x45mm  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.