Back to the OP's original question, have you checked out SKB?
If I were you, I'd consider keeping the 12 gauge and shooting 7/8 ounce shells in it. Or, if you hand load, consider 3/4 ounce loads.
I'm 72. I use 3/4 and 7/8 for skeet, 1.0 ounce for clays, and either 1.0 or1-1/8 for trap.
Also consider 1145 fps vs. 1200. By the time the shot gets to the target, the velocity difference will only be 30 fps or so.
You could also consider a semi. They recoil less. However, some of them won't cycle the lighter 12 gauge loads.
