The xtreme defender is based on the popular xtreme penetrator product line.The xd ammunition has an optimized nose flute, total weight, and velocity to achieve a penetration depth up to 18 inches with a permanent wound cavity (pwc) that is just simply enormous.Not only is the pwc over 100% larger than any other expanding bullet, expansion is achieved despite being shot through barriers.Caliber: 10mmBullet Type: Full Metal JacketBullet Weight: 180 grMuzzle Energy: 625 ft lbsMuzzle Velocity: 1250 fpsRounds Per Box: 50Boxes Per Case: 10Casing 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 [email protected] 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 [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