Not to get off subject.
I belive recoil is all a state of mind.
When I was 12yrs old my dad got several Ithica DeerslayerII 12ga Shotguns for payment for doing some eletrical work. When we went to break one in he started to complain how it was making his shoulder sore after 2 boxes of slugs (hes also a 220lbs guy). When I was shooting it, the shotgun seemed to have the same recoil as a .30-30. My dad and uncles were amazed how they could keep feeding me boxes of slugs, and I would just keep shooting em!
It wasnt untill I was 23 when I first put a scope on my slug gun. Thats when I got my first scope bite on my eyebrow. Thats when a 12ga actualy had recoil for me.
Now I just use a muzzy when I cant hunt with a rifle.