Don't shoot steel through a full choke! WTF?!? Use an improved cylinder or modified choke for steel. I find that modified works best for me at just about any distance. For geese, use BB. Any kind of ducks I use #2 shot or #4 shot. #2 works just fine though! Anyways, any gun manufacturer owners manual I've ever looked at says NOT to shoot steel through a full choke! When it comes to guns, follow the manufacturers recommendations.