It wont have a problem with the barrel. But steel shot shoots different then lead. From what ive noticed(I do not shoot steel alot like some people do) is that with steel use Mod if you want a Full pattern and use Imp Cyl for a Mod pattern and so on. I could be wrong but that is what i have noticed from the few times i have shot steel. Also i tryed a full choke and couldnt get a decent pattern at 15 yards.