I set up an 1187 i had sitting around last year just before the season as a 5th back up gun,like i needed another lol.Ended up killing 3 of the 4 longbeards i shot last year with this gun and it shot very well,can't remember the numbers but they were very solid for just a bore snaked
barrel.Im also useing this choke in a 1187 s.m. with 3 1/2" and also the 20 gauge version in 1187 20.I have some pics of there patterns in the pattern
sections.Im extremely happy with these chokes,and if ya buy one and don't like it ya can send it back with'n 60 days and get your money back!From what ive seen you will probably keep it!