I'll be 60 in 6 months. When I was younger I wasn't much bothered by recoil and owned all sorts of rifles up through the 375 H&H. Now I find rifles in the 308/270 recoil level is the upper limit of fun. That doesn't mean I can't still shoot heavy recoiling cartridges well, just that I find no fun in doing so, and absolutely do better, more consistent shooting with lighter recoil. And if I have learned anything over the last 30+ years, it's that on game, "cartridges are more alike than different."
My 308 Kimber MT is going to get re-barreled to 6.5 CM.