Re: 243 and a shoulder surgery...
You have a few answers about hunting with it...So let me address things I have done to help me shoot. But first a little background....
In an ambush in Iraq I dislocated both shoulders, damaged my upper and lower spine, TBI ,(that[s not all but you get the picture) and have to shoot out of a wheelchair.
Here are things I have done:
Worked on how I hold my weapons
Added high end recoil pads
Custom made muzzle brakes for all my "big guns" (called and explained why/what I needed)
Purchased a form fitting shooting shirt that has a high end pad insert
Use a sled when testing ammo at the range
Now I shoot all of my rifles again, including: Lazzeroni Warbird, 338 Lapua, and 375 Weatherby
Best of Luck,