The hevi-steel flies at 1500 fps,compared to competing fast steel loads, which run at 1450 fps.This increase in speed delivers 9% more energy at 30 yards and 8% more energy at 40 yards.In short, you get more knockdown power and fewer crippled birds.Clean burning powder and precision manufactured premium steel shot are loaded to environ-metal, inc's exacting loading standards.Gauge: 12 GaugeLength: 3"Ounces: 1 1/4 ozShot Size: BBMuzzle Velocity: 1500 fpsRounds Per Box: 25Boxes Per Case: 10Hazair: 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