Hevi-bismuth is 22% more dense than steel, which allows you to drop down a shot size for the same lethality.Hevi-shot's bismuth is safe to shoot in modern and classic guns.Shot Material: BismuthGauge: 16 GaugeLength: 2.75"Ounces: 1 1/8 ozShot Size: 3Rounds Per Box: 25Boxes Per Case: 10Application: HuntingHazair: 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