Pmc's bronze ammo is manufactured with the same quality and dependability built into the starfire ammunition.All pmc cartridges must pass through the rigorous inspection of the electronic powder check station.If the propellant in any cartridge varies by as little as two-tenths of one grain, the system stops, and that cartridge is discarded.Caliber: 223 RemBullet Type: Full Metal Jacket Boat Tail (FMJBT)Bullet Weight: 55 grMuzzle Energy: 1250 ft lbsMuzzle Velocity: 3200 fpsRounds Per Box: 20Boxes Per Case: 50Application: Target,Hunting,DefenseCasing Material: BrassHazair: YesAmmunition cannot be shipped to a P.O. Box, please use a physical address during checkout. For restricted state buyers (CT, IL, NJ), please email a copy of your state's credentials, and a photo ID along your order number to ffl@firearmsdepot.com within 5 business days to avoid cancellation and refunding your order. For California, Massachusetts 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 ffl@firearmsdepot.com 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