Del, its an old Benelli M-1, 26" barrel, all my shots are with a dirty barrel, I really can't rember when I cleaned it last. With Fed HW#7 it got from 151 to 180, with Fed HW#6's it was 121 and hevi13#7's it put 200 in the 10 at a measured 40yds. Thanks William at Sumtoy for a great choke.