The lead-free supersabot's controlled mushrooming is dependent on its target resistance.It is ideal for use with rifled barrels, however, if you prefer a smooth barrel, chokes must be omitted.The supersabot presents 58% more frontal and expands up to an incredible one inch in diameter.And its accuracy rivals many centerfire rifles.The supersabot is constructed with an aluminum point, brass jacket/core, and a carcass that opens when leaving the barrel.Gauge: 12 GaugeLength: 3"Ounces: 1 1/8 ozShot Size: Sabot SlugMuzzle Velocity: 1526 fpsRounds Per Box: 5Boxes Per Case: 50Application: HuntingHazair: Yes