The one-ounce (440 gr.) Original BRENNEKE slug is mated with the thoroughly proven B.E.T. wad--Better Energy Transfer--easily meeting all demands up to 60 yards. It can be fired from all shotgun barrels, rifled or smoothbore, with or without chokes, all problem-free. And accuracy? Groups of two inches with five shots at 40 yards are easily obtainable.Features:12 gauge, 2-3/4", 1 oz slug;Better Energy Transfer (B.E.T) wad;1476 FPS;5 round box