5.56x45mm – 55 gr FMJBT – Armscor (50113) – 300 Rounds

If you run an AR-15 and want brass cased 5.56 practice ammo that is easy to carry and easy to store, this is a practical way to buy it. This listing is Armscor Precision 5.56x45mm NATO 55 grain FMJBT ammunition, MPN 50113, sold as a 300 round case. Armscor packs this load in 30 round Rock Pack boxes, so each box holds exactly one standard AR-15 magazine worth of ammo, which makes loading up for a range day or a training class simple.

The 55 grain full metal jacket boat tail bullet is the classic M193 style weight for the 5.56 NATO cartridge. The copper jacket feeds smoothly from rifle magazines and keeps bore fouling down during high round count sessions, while the boat tail base helps the bullet hold its line on the way to paper or steel targets. FMJ bullets do not expand, so this is a range and training load rather than a hunting round. For shooters who want to practice with the most common AR-15 bullet weight, 55 grain FMJ is the standard choice.

This ammo is intended for rifles chambered in 5.56x45mm NATO, including AR-15 pattern rifles, the Ruger Mini-14, IWI Tavor, FN SCAR 16, and similar platforms. A common question is whether 5.56 can be fired in a 223 Remington rifle. Rifles marked 5.56 NATO or 223 Wylde are built for it, but a rifle chambered only for 223 Remington should not be fed 5.56 loads, so check your barrel marking first. The 300 round case is a good size for a few range trips, a carbine course, or keeping a stocked ammo can for every magazine you own.

Armscor Precision 50113 is new production ammunition, not reloads, made by Armscor in the Philippines and imported for the US market. Each cartridge uses a brass case with a boxer primer, and the load is non-corrosive, so normal cleaning is all your rifle needs after shooting. The boxer primed brass is reloadable, which makes the fired cases worth saving for handloaders. This case comes in factory packaging as 10 Rock Pack boxes of 30 rounds for a total of 300 rounds of 5.56x45mm NATO.