PMC X-TAC 5.56 Nato 55 Grain Full Metal Jacket Ammo 20 Round Box

Manufactured to the exacting specifications required by such organizations and demanded by our customers, X-TAC is the choice for the professional and enthusiast alike. At PMC, we know your job demands that you think of everything. But we also know that when the chips are down you shouldn't be thinking about your ammunition.

Brand PMC

Category Centerfire Rifle Rounds

Caliber 5.56x45mm NATO

Model X-Tac

Bullet Weight 55 gr

Rounds Per Box 20

Casing Material Brass

Application Plinking

Boxes Per Case 50

Bullet Type Full Metal Jacket Boat-Tail (FMJBT)

Muzzle Energy 1306 ft lbs

Muzzle Velocity 3270 fps

Caliber Dictionary

The Below Information Has Been Provided From Our Gun Caliber Dictionary And Is Meant For Informational Purposes Only. It Is Not Intended to Describe The Unique Specifications For This Ammunition.

The 5.56X45mm NATO cartridge was designed by James Sullivan, a member of Eugene Stoner's engineering team that developed both the M16 rifle and its original cartridge. The 5.56X45mm NATO was adopted by the U.S. military in 1964 and by NATO in 1980. With bullet diameter of .224-inch, the original M193 military cartridge used a 55-grain bullet at 3250 fps; the current M855A1 cartridge, developed by FN, uses a 62.5-grain bullet at 3020 fps, offering greater range and better penetration. The civilian version of the 5.56X45mm is 223 Remington; the cartridges are dimensionally identical but military chamber dimensions and specifications for military brass are different. It is considered safe to use 223 Remington ammo in a 5.56X45MM NATO chamber, but not a good idea to use 5.56X45mm ammo in a rifle specifically chambered for the 223 Remington. Although the stopping power of .22-caliber bullets remains controversial the 5.56X45mm has served well in now multiple generations of M16 rifles. — Craig Boddington

Specifications