I have shot a lot of steel #2,#3 and #4 shot through a modified choked Model 97 Winchester with no issue. I have a very nice Heavy Duck Model 12 that I have not shot steel through yet but if I was going to, I would have opened up and shoot steel through all day long.

I will not shoot steel through any of my Model 21's or other older side by sides. With opened chokes, I am sure it would be fine. Not going to open chokes to find out.