I have a couple 3” 3200 but at full and full would not be happy using large steel in them when I could use Bismuth instead. They might be capable of dealing with steel but what risk it. Hunting requires a lot fewer shells per trip so even reloading at near a bucks a shell, I just pay the price. Steel might be a bit cheaper or easier to find but I have months to locate what I need. Your gun, your money, your choice.