I bought a Mag 10 vent rib Roadblocker in 1984, and sent the gun to Briley. It was the first Mag 10 which they had threaded and they made me a turkey, modified and I.C tubes. I was reloading 21/2 oz of nickled shot for turkeys and although the gun patterned well and killed turkeys, it was banned from the duck/goose blind due to the muzzle blast. As I've said on here before, the only thing which the gun needed, but lacked, was a set of training wheels attached to the stock so you could pull it behind you. I'm a much better caller now, don't need to kill birds at 60+ yards, and find that a light weight 3",12 gauge loaded w/ Hevi-13, 7's is all I need.