I'm having some trouble understanding why some shooters/hunters have an issue with recoil bothering their shoulders. This is a problem I've never experienced. I own or have handled calibers up to 500 NE and 3 1/2" 12 gauge magnums. My "go to" rifle is a .416 Rigby and I'll shoot 410 gr Woodleighs (2375 fps) all day long and not have any soreness or bruising on my shoulder. Most of the rifles I load for, I will work towards the tightest group; they aren't always loaded to the max, but generally pretty close. I always tend to use the heavier bullets for each rifle as I prefer their wind-bucking characteristics. I am probably considered on the slim side: 6'1" and 180 lbs. I never lean into the gun, I pull back the forestock with my off hand and my trigger hand is somewhat looser. That being said, if I get careless or happen to be shooting at an odd angle, I've been slapped on the brow or nose by the scope more times than I care to admit. My shoulders also have a bit of arthritis from weightlifting in my youth, yet shooting heavy recoil rifles or shotguns doesn't seem to bother them (I'm ambidextrous: firearms I prefer right handed; archery, I only shoot left handed). I'm not pretending to be a tough guy, just curious as to the physics! Any other AH readers have any similar experiences or ideas?