The Winchester Supreme High-Velocity Drylok Super Steel Waterfowl line of ammunition features Winchester's patented Drylok Steel Shot wad system along with specially lacquered primers to keep the shot powder dry for consistent and uniform performance in the field. If you are looking for a top-quality waterfowl round, look no further than the Winchester Supreme High-Velocity Drylok Super Steel Waterfowl line of ammunition. These shells deliver excellent knockdown power, guaranteed to perform powerfully and consistently in even the most adverse conditions. What more could you ask for?