For nearly 140 years, the Union Metallic Cartridge Company name has been synonymous with some of the finest ammunition made. Since its beginning in 1867, UMC has blazed a trail of innovation in cartridge-making excellence that continues to this day. UMC was the first ammunition company to produce centerfire ammunition, the .22 Long Rifle cartridge, and super-accurate "Palma Match" target ammunition. The UMC division makes only first-quality product, in a limited line of popular specifications, so they can bring you the benefit of manufacturing efficiencies that keep costs low. The rifle and handgun ammunition made today is the product of 140 years of design innovation and manufacturing excellence.Reliable, affordable loads for the high-volume shooter. Whether for practice, target shooting or training exercises, UMC ammunition is a superb choice for high-volume shooting and hunting. This ammunition is new production, non-corrosive, in boxer primed, reloadable brass cases.Specifications: Caliber: 223 Rem Bullet Weight: 55 Grains Muzzle Velocity: 3240FPS Muzzle Energy: 1282 ft. lbs. Bullet Style: Full Metal Jacket Casing: Brass Primer: Boxer Reloadable: Yes Corrosive: No G1 Ballistic Coefficient: .202