find a USED rifled barrel...save some bucks and have the advantages of the rifled barrel at the same time....
here in Ohio its 'no no' to center fire rifles, so every extra yard i can get out of my dedicated slug gun is worth while.
my rig is a mossy 500, rifled barrel , 1.5-4.5X 32mm scope...works well to about 125 yards with rem buckhammer ammo....i got a used barrel for a hundred or so, if I recall correctly.
OH