Model 12s are always good with a 30" full. Old Rem.1100 2 3/4 with 30"full ,Model 37 win.30" full.All are good for stock shoots.I have a Model37 that a model 37 at the lock up point ,Model 12 chamber,and 36" of water pipe,scope.....LOL It is .640 does #9s really well at 70 feetdoes not like 8s that much.I had an old timer from Stuart Va. build mine His Name was Foley (R.I.P.) he was the best around here.I have been to what they call "Super Shoots" in the Richmond Va. area.They use 60" barrels and have $10,000 purses.