FEDERAL SPEED SHOK WATERFOWL, 12GA, 3″, 1-1/8oz, #4 Steel Shot - Box of 25Speed kills ducks and geese. Now it kills even cleaner with redesigned Federal Speed Shok. Its high performance primer and fast burning powder dramatically reduce residue, while its optimized velocities knock birds out of the sky. Improved loads Fast burning, clean propellant leaves drastically less residue in the barrel and action High performance primer provides the most complete, consistent ignition possible Optimized velocities Shot Size: 4 Muzzle