i just found this forum.just about turkey hunting i love it.i know this is a late answer but i purchased a truglo stopper choke.i have it in a h&r 12 gauge single barrel .it patterns just as well as my beloved 870 superfull turkey k -nocker.35% to 40 % in a 11 inch circle @40 yards.thats with 5s or 6s.27 to 35 pellets in head and neck @40 yards.i think it will do the job nicely.