Pmc 5.56 Nato Green Tip FMJ 62gr X-Tac Ammunition is a military grade ammo manufactured to the highest industry and military specifications. This centerfire Rifle ammunition is extremely reliable and will not let you down if a threat arises and your life is on the line. Pmc 5.56 Nato Green Tip FMJ 62gr X-Tac Ammunition offers a muzzle velocity of 3100 feet per second and muzzle energy of 1323 ft lbs.