I have a Pedersoli front loader 12 ga. with 20 inch tubes, both cyl. bore. The coach gun. It has been a safe queen and now I am going to start working with it. Naturally it has a very wide pattern at 25 yds, so I am looking to constrict that to increase range. Has anyone done any work like this to tighten the pattern of a shotgun by changing the wadding? I have had some success but I am wondering if someone else has already been down this road.