I have an 870 supermag 3.5" 12 gauge, use a Briley .665 Extended Straight Rifle choke, Used with Winchester Supreme 3.5 inch #5 shot - - Patterns were truly super
I also have a 870 SPST Turkey 3" 12 gauge, use a Briley .665 Extended Straight Rifle Choke,Used with Winchester Supreme 3 inch #5 shot - - Pattern also super
I also have a Winchester sx3 NWTF 12 gauge, Just purchased a .665 Extended Straight Rifle Choke, have not patterned it yet but briley said I could return it within 30 days if not satisfied. I am planning to pattern with 3.5" and 3" Winchester Supreme #5 shot, I am also going to pattern it with Winchester Long Beard in 3.5" #5 Shot