With as cheap as the H&R slug guns are, save the money you'd spend on a rifled choked tube and let it pay for a nice portion of the H&R slug gun. Those H&R's are one of the best slug guns out there, and really cheap, too. Their accuracy rivals a good rifle within 100 to 150 yards if you take the time to find slugs they like. A friend from college that hunts a shotgun-only zone went from a $1500 custom auto slug gun to one of the H&Rs that had nothing done to it other than adding a scope and a little trigger work. The H&R was much lighter, slightly more accurate, and had a pretty good trigger out of the box, unlike most shotguns.