The rio heavy field line of sub-gauge game loads were specifically designed with small game hunters in mind.These game loads come in 16-gauge, 28-gauge and.410 bore sizes to suit your particular weapon.Brass Length Type: LowGauge: 410 GaugeLength: 2.50"Ounces: 1/2 ozShot Size: 8Muzzle Velocity: 1200 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, 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