Got a donor gun. It is choked cylinder and modified. shot some commercial slugs and some of the Lee giant pellet slugs today at the range. Just using the crappy bead I was able to put five of the lee slugs into a hand sized group at 25 yards. The range owner put two through the same hole. Currently it has 30 inch barrels I am thinking about cutting them to 25 inches then mounting sights. seems I might have a poor mans .720 smooth bore nitro express soon. Have to decide in sights soon. Don't know if I want an express style sight or a peep with a beaded blade front. both types have appeal. I can shoot a peep sight fast and accurately. That is what I have on my 45-70 side by side rifle. Oh well decisions, decisions, decisions