I shoot a Browning 3 inch B-80 with a Hastings .640 choke...It doesn't like heavy loads...I dropped down to 1 5/8 loads and it does great...Found out the cheap Remington Nitros do very well...
I've even tried it with high brass 1 1/4 loads in 2 3/4 shells and wouldn't be too handicapped out to 35 yards with that...That might be my load when I get past 65...