Sissy bags help under those situations. Even better is a PAST shoulder protector. I had to wear one for years shooing anything larger than a .222, after tearing the cartilage in my right shoulder, fore and aft.
https://www.ebay.com/b/past-recoil-pad/bn_7024792708
I see Caldwell also has them. The PAST shoulder protectors REALLY work well and have several models. I suspect the Caldwell are no different.
I was able to shoot my .375 and .69 ML with full power loads.
The .69 kicked a LOT more than a 9 pound .458.
https://www.amazon.com/Caldwell-Ambidextrous-Shooting-Shields-Construction/dp/B0009TRNRK?th=1