I'll bet for $400 you could find a used Mossberg 500 with a rifled slug barrel with cantilever scope mount AND a scope on it AND at least one other barrel to go with it. Lotsa guys bought Mossberg's and then wanted to upgrade to other makes and models ...like Remington or Winchester......Some of these hunters wanted to do just as you want...a shotgun that could hunt deer and maybe more. A Mossberg with the rifled slug barrel AND a 28 " barrel that will accept chokes is a pretty good gun to have in the cabinet.......Or any brand of shotgun with the 2 barrel versatility...good luck