Personally I don’t think you should have any problem. You’ve mentioned that you shot a 12 ga. in 3” magnums. Now if that’s from a single shot, pump or double barrel, I can’t see any problems, but if you were shooting a semi auto, the recoil could be slightly less. Every one handles recoil different but I think you should be good to go just stay away from 180 gr. or 220 gr. bullets when you start. Good luck.