I use a Beretta 686 Onyx, O/U 12 Ga with 3 1/2" chambering and 28" tubes. I like a short, fast handeling gun even if I'm giving up one round and have to endure more recoil than a lot of other guns (seldom use 3 1/2" ers.). All my shotguns are either SxS or O/U, I guess I am just a traditionalist.