olhippie-- Is your 20 ga barrel the fully rifled version? I have the .357 mag/20 ga rifled barrel combo, but haven't gotten to shoot it yet. I am thinking I need to trade the 20 ga barrel for something else(.223, .243 or .308), as I don't plan to spend $3 a pop for 20 ga saboted slugs, that don't have the range or punch that I have in my .45/70.