5.56x45mm – 55 Grain FMJ – PMC (5.56X) – 20 Rounds

A single box of 5.56 NATO is a practical way to top off your magazines or try a new load before committing to a case. This listing is PMC X-Tac 5.56x45mm NATO 55 grain full metal jacket boat tail ammo, MPN 5.56X, sold as one box of 20 rounds.

PMC rates this load at 3,120 fps with 1,306 ft-lbs of muzzle energy. X-Tac is PMC’s line of military-style rifle ammunition, built for reliable cycling in carbines and rifles. The 55 grain FMJ boat tail bullet is equivalent in weight to M193 ball and stabilizes in all common AR-15 twist rates. It is intended for training and range use, not for hunting or self defense.

This ammunition is for rifles chambered in 5.56x45mm NATO or 223 Wylde, including AR-15 rifles from Colt, Ruger, Smith and Wesson, Daniel Defense, and Palmetto State Armory, the Ruger Mini-14 marked 5.56, the IWI Tavor, and the FN SCAR 16S. A common question is whether PMC X-Tac is the same as M193. It follows the same 55 grain ball concept, which is why many shooters use it in the same training role as M193. Another common question is whether this ammo is reloadable. Yes. It uses brass cases with boxer primers, so the empties can be reloaded.

PMC 5.56X is new production ammunition, not reloads, loaded in South Korea by PMC. It is non-corrosive. This listing ships as one box of 20 rounds of 5.56 NATO 55 grain FMJ-BT. Twenty rounds fills most of a standard magazine, which makes this box handy for a quick zero check or a function test after cleaning or installing new parts. If the load runs well, it is easy to pick up more of the same X-Tac ammunition in larger quantities for regular training. A box like this also makes a good backup to keep in a range bag or vehicle kit with a spare loaded magazine.