You're not going to get much with such a short barrel....Did you try some buck shot? I was really thinking about getting one of those.... I like the concept. In the house, even that #4 shot would ruin an intruder's day.. the second shot can be more lethal if necessary....

A choke can be installed on it, but there has to be some rifling left in the bore to keep it legal. I never liked the thought of shooting a shot shell through a rifled barrel.. the rotation causes the shot to spread more. But I kind of like the Judge though for personal defense in the home, trail, or car (RV)

Doc