I ought to use my Miroku/Daly 500 with steel shot for all my duck hunting, but I have a good supply of 16ga and 12ga Bismuth laid in, so I use all my old doubles once or twice during a duck season. I do make the exception when I travel to prairie Canada in October, and shoot whatever 3-inch afromatic I happen to have...a Beretta Urika this season...Geo