First, the details of the gun. It's an 870 express super mag with a 28" barrel. This gun used to shoot tremendously well. Almost rifle like. It shot extremely tight at 20 yards. So tight (about the size of a tennis ball), I wouldn't shoot at a turkey inside of 25 yards, for fear of missing. I had shot 2 turkeys at sixty yards. I was shooting Remington's super full choke, with Winchester's high velocity #5, 3" shells. Loved this setup. Then Winchester changed something in these shells, ( powder load or something). It totally screwed up my pattern. I now have a Rob Roberts .660 choke shooting Winchester's extended range #5's, 3". This setup doesn't come close to my old setup. So, my question is, what are you other 870 shooters shooting to get a tight pattern? I like a really tight pattern for those birds that hang up.
Thanks,
Patrick