The mach is the premier line of superior-performing shotshells.These high-end, premium shells utilize the innovative gordon case for superior performance.The gordon case wad allows a reduction in the pressure developed but mainly limits the effects of recoil, making the shot softer while providing excellent performance.The conical shape of the gordon base wad optimizes the combustion of the powder and, consequently, the performance of the ammunition.The base is slightly larger in diameter than the body of the cylinder and is formed by four concentric rings.Gauge: 12 GaugeLength: 2.75"Ounces: 1 1/8 ozShot Size: 8Muzzle Velocity: 1300 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