Federal Ultra Steel 10 Gauge 5/8oz 3 1/2in Shotgun Ammo BBB&1 Shot 25 Rounds PWUX107 BBB1. This Federal Ammunition features 1 bbb 2 bb shotgun shells that deliver strong stopping power pinpoint accuracy and predictability for waterfowl. . Buy now to get 3 1/2 in shells delivered right to your door. With great promotions on Ammunition and other superior shotgun ammo from trusted brands like Federal you re sure to find the ideal effectiveness for your next hunting trip or range visit. Stock up today to save big on shells and other top-tier tactical hunting and outdoor gear at OpticsPlanet. What is Federal Ultra Steel 10 Gauge 5/8oz 3 1/2'' Shotgun Ammunition good for? The manufacturer suggests that it is suitable for waterfowl.Federal PWUX107 BBB1: Ultra Steel 10 Gauge 5/8oz 3 1/2in Shotgun Ammo BBB&1 Shot 25 Rounds