Thanks guys, I did try to pattern the gun and let me tell you, the pattern sucks. I can only get close to 10 pellets of #4 shots in the turkey's neck at 20 yards, I try 30 yards and the pattern open up even more, don't even ask how many pellets hit the target. I never try to pattern #6 shells but I don't think it's gonna bethat muchbetter. I don't think I'm gonna hunt like this. Looks like my other choice is to get my barrel alter to take screw-in-chokes and doesn't cost as much as getting a new barrel for my gun.