Well I shot the 45/410 barrel today. I shot some shot shells just to see how it handled. It was fun. I then removed the choke and shot five 410 slugs at 25 yards and all five shots stayed in a 4 inch circle on the target. Now the 45L/C's shot tighter groups at 25 yards compared to the 410 slugs. At 15 yards I put 5 shots in the bulls eye, about a 1 1/2 inch bullseye. I was impressed with the 45/410 barrel. :-D