Federal's Black Cloud FSS 12 Gauge shotgun shells are designed for large ducks. These 3.5" shells fire 1 1/2 oz of BBB shot at a velocity of 1500 fps. With 25 rounds per box, you'll have plenty of ammunition for your next hunting trip. Fast shipping ensures you get the ammo you need quickly. The Flitecontrol Flex wad provides improved pattern density and consistency through various chokes. This shell is ideal for waterfowl hunting in both standard and ported chokes. Key Benefits and Features: Caliber: 12 Gauge Bullet Type: BBB Shot Muzzle Velocity: 1500 fps Rounds Per Box: 25 Casing: Steel