I have a Browning BBR in .300 WinMag and shoulder muscles of a 72 year old, shooting this thing hurts. My gunsmith says he can reduce the felt recoil by 60% so I dropped my rifle off at his place of business last Saturday to do the work he said would held.........install recoil reducer in stock, new softer pad and a muzzle brake. Is this gonna fix things so this old man can shoot his rifle again?????