Featuring a high muzzle velocity and large shot charge, the Federal Premium Ultra-Shok High Velocity Steel Ammunition is perfect for hunting ducks. Equipped with a 1 ounce charge of 2 shot in the 20 Gauge caliber, the Federal Premium Ultra-Shok High Velocity Steel Ammo can reach an incredible muzzle velocity of 1350 feet per second. Accurate, affordable, and reliable, the Federal Premium Ultra-Shok High Velocity Steel Ammunition is sure to please even the pickiest hunters.