I'm about your size, 5-8 and 170#. I'm also 60 and don't enjoy heavy recoil anymore although I have no problem shooting an 870 with Federal Tactical buckshot.
When I was about 20 I went to the range with a friend who had just bought an O/U .458 Win. and a 10 ga. magnum S/S. Both weighed about 12.5 to 13#. After shooting 2 rounds through each I felt like I had whiplash. My shoulder didn't bother me, but my neck was sore for a few days. No fun!
By the way....the guy who owned the guns had to take two steps back every time he fired the .458 to keep from falling over. He was about 5-5 and weighed about 130#. It was sort of comical to watch him.