R5R others had told me to not worry a .451 will swage safely. I was worried because my gun's only diameter is .447 and there's no rifling.
I agree with you on the pattern thing. I'm very satisfied with this judge as a shotgun, it patterns well and the factory 000 buck shoots great in it. Just struggling to make it shoot a single projectile well (minute of possum at 15/20 yds is now my goal )