Winchester USA 5.56 NATO 55 Grain FMJ ammunition is a dependable choice for shooters looking for factory-loaded 5.56 NATO ammunition for regular range sessions, target shooting, and training. Loaded with a traditional 55 grain Full Metal Jacket projectile, this ammunition provides a practical option for high-volume rifle use.
Part of Winchester’s USA ammunition line, this load is manufactured using quality components and precise production processes with an emphasis on consistent reliability and smooth function. Each factory box contains 20 rounds, with 1,000 rounds packaged per factory case.
55 Grain Full Metal Jacket
Each cartridge is loaded with a 55 grain Full Metal Jacket (FMJ) projectile. FMJ ammunition is well suited for routine target shooting and training, making this Winchester load a practical choice for shooters looking to stock 5.56 NATO range ammunition.
5.56 NATO Range & Training Ammunition
This load is chambered in 5.56 NATO and is intended for firearms specifically rated for the cartridge. Its 55 grain FMJ configuration makes it a versatile option for recreational shooting, drills, practice, and general range use.
Winchester USA Ammunition
Winchester USA ammunition is built around straightforward performance and consistent manufacturing. For shooters looking for familiar 55 grain 5.56 NATO FMJ ammunition without specialized hunting or match projectiles, this load provides a simple factory-loaded option.












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