In my SBE2 with a IC choke it seemed to shoot too tight for decoying divers but worked well on decoying geese, using #2's. I have not patterned it. I was running low on shells and was given a box while hunting and went right to using it. I think I'll stick with hevi-steel for ducks, works well for me. My cousin field hunts for geese and shot a case of it this year and was very pleased. It is not a be all, end all but certainly has a place.
Gene