I am sure an MRI would show some interesting things in my shoulder, lots of heavy lifting my entire life. My 7 mag or 12 gause model 1100 don,t bother me, by my Ruger 77/50 front stuffer that weighs in at 6 1/4 lbs, with the famous Ruger rock hard rubber recoil "pad" is painful to shoot. About 3 shots with the 300 grainers and I quit! H&R does have a much better recoil pad and a little extra weight always helps. A life long friend of mine is one of the guys that did the load development for the .460 for Hornady and he said that working up all the loads for the S&W were not enjoyable!