PMC X-TAC 5.56 NATO 55gr FMJ

The PMC X-TAC 556X is PMC's mil-spec M193 equivalent, loaded to full 5.56 NATO pressure specifications rather than the lower-pressure .223 Remington standard used for the PMC Bronze line. That pressure difference matters: the X-TAC pushes its 55-grain FMJ boat tail to 3,270 fps from a 20-inch barrel, roughly 70 fps faster than Bronze, which ensures proper gas system cycling in carbine-length and mid-length AR-15s even when new or slightly undergassed.

Manufactured by Poongsan Corporation with the same military production standards applied to their South Korean military contracts, the X-TAC delivers tighter velocity spreads than most bulk M193 alternatives. The brass is fresh, properly annealed, and uses non-crimped Boxer primers, making every case reloadable without the primer pocket reaming required by Lake City brass. The clean-burning propellant keeps gas ports cleaner and extends the interval between carbon scraping sessions.

For shooters choosing between PMC Bronze and X-TAC, the decision is simple: if you're running a bolt gun or just punching paper at 100 yards, Bronze saves money. If you're training with an AR-15 and want guaranteed cycling with NATO-spec velocity, the X-TAC is worth the modest premium. At roughly $0.40-0.45 per round, it remains one of the best values in reliable 5.56 training ammunition.