Winchester USA 5.56 Ammo 55gr FMJ Rifle Ammo - 600 round case

Winchester is the largest manufacturer of small caliber ammunition for the U.S. military. Proven in battle for more than 100 years, we've delivered trusted ammunition products for civilians, law enforcement and military. With the addition of the Lake City Army Ammunition Plant, we're proudly bolstering our commitment to support the modern Warfighter by designing and producing the highest-quality ammunition products.Product Specifications Cartridge - 5.56mm Grain Weight - 55 Grains Muzzle Velocity - 3240 Feet per Second Muzzle Energy - 1282 Foot Pounds Case Type - Brass Reloadable - Yes