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 super sabot presents 58% more frontal and expands up to an incredible one inch in diameter.Its accuracy rivals many centerfire rifles.The super sabot is constructed with an aluminum point brass jacket/core and a carcass that opens when leaving the barrel.Gauge: 12 GaugeLength: 3Ounces: 1 1/8 ozShot Size: Sabot SlugMuzzle Velocity: 1526 fpsRounds Per Box: 5Boxes Per Case: 50Application: HuntingHazair: Yes"