Thanks to all for the info & suggestions. I'm not giving up on it. I've had this rifle for around thirty years and it's been my favorite since I cut the barrel down to 22" and put it in a Bansner stock. It's always held zero and shot well, different loads, clean or dirty, hot or cold.
I'm going to hold off trying the 110s and Tac unless nothing else works. I'll start by reducing the 4895 and 4064 loads down to 48 grains. If that doesn't work out I'll try taking the 4895 down a little further.
As far as building up my shoulder and neck muscles, unfortunately they're probably as good as they're going to get. I've been hitting the weights three times a week for a lot of years. At this age I'm just trying to maintain "strength" LOL without injury.
