Hornady 9131 custom 357 sig 147 gr xtp jacket hollow point 20 bx/ 10 csCaliber: 357 SigBullet Type: XTP Jacket Hollow PointBullet Weight: 147 grMuzzle Energy: 490 ft lbsMuzzle Velocity: 1225 fpsRounds Per Box: 20Boxes Per Case: 10Application: Performance,ProtectionCasing 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 ffl@firearmsdepot.com&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 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