Ive only loaded Bismuth for an old 10 ga. but I have patterned several different brands of factory Bismuth on a steel pattern plate. Bismuth throws a nice even 35 and 40 yard pattern for me...upon impact a #4 leaves a dime size splat in the grease.

I don't think the nay sayers would like to get hit with it...I know ducks and a few turkeys that didn't.