Winchester "usa white box" stands for consistent performance and outstanding value, offering high-quality ammunition to suit a wide range of hunter's and shooter's needs.Caliber: 223 RemBullet Type: Full Metal Jacket (FMJ)Bullet Weight: 62 grMuzzle Energy: 1323 ft lbsMuzzle Velocity: 3100 fpsRounds Per Box: 20Boxes Per Case: 50Application: Recreational ShootingCasing Material: BrassHazair: YesAmmunition cannot be shipped to a P.O. Box, please use a physical address during checkout. For restricted state buyers (CT, IL, MA and NJ), please email a copy of your state's credentials, and a photo ID along your order number to [email protected]&nbsin 5 business days to avoid cancellation and refunding your order. For California and New York buyers, please have your dealer email us a copy of their FFL or Ammo Vendor License along with your order number to [email protected] within 5 business days to avoid cancellation and refunding your order. Your order will not ship without us receiving this information. Thank you for your cooperation