Description For practice, target shooting and training exercises, UMC centerfire rifle ammunition is loaded with metal case or jacketed hollow point bullets in six popular military linked calibers. All UMC rifle loadings are ideal for high volume shooting. Specifications Category: AMMO CENTERFIRE Caliber :223 Remington Bullet Type :Metal Case Bullet Weight :55 GR Muzzle Energy :1282 ft lbs Muzzle Velocity :3240 fps Rounds/box :50 Rounds Per Box Firearms, trailers, and some accessories are only available for purchase in stores. Each location follows all BATF and individual state/county/city laws to insure the desired product is legal for sale. Any info provided online is subject to change, please go to your local store for more accurate information.