I know everyone is different, but can say I’ve been there done that and it failed. No amount of PT, strength training or steroid injections cures arthritis once you’re bone on bone.
Plus 1. Arthritis with bone on bone in strong side shoulder. Tolerated the grinding, snapping, and pain for 5 years with an active outdoor lifestyle. Finally saw a surgeon in March of last year. He was very concerned by the x-rays showing that the glenoid socket may have been worn too severely to attach the replacement socket. He scheduled an immediate MRI to get more detail, which fortunately showed that a conventional shoulder replacement was possible. I had shoulder replacement surgery two weeks later. With diligent PT, my shoulder is in excellent shape.
Regarding the OP's question on shooting and recoil, I installed Limbsaver Airtech recoil pads on my 30.06 and 308 bolt rifles and 12 guage 870, and use a PAST recoil pad for shooting the old the 38-55 with a cresent steel buttplate.
