I am still working on going hog hunting so have started playing with 00 and #4 buck my reloads. I am also playing with factory Winchester SUPER-X 1 oz slugs that I have several boxes of. Like the 00 and #4 buck loads very well but the slugs are shooting 8"-10" groups for 5 rounds 50 yards. Thinking of getting a Carlson's 18 1/2" barrel with bead front sight, having the barrel threaded for chokes so I can put a rifled choke on to shoot slugs. Will add trijicon front sight an a ghost ring rear sight on the receiver. I have a 1986 Remington Police magnum that I am using. I am still working on the components for my 2 ball load. What is the thoughts on adding a screw-in choke for round balls? Any thoughts on the Carlson barrel for round balls?