I may have missed it, but if you've been using .224" bullets, it may be very worthwhile to try the .223" .
My uncle collected all kinds of Winchester rifles and in a few he found. 223" bullets shot much better than the .224s did.
I didn't know this was a thing. There are bullets that are actually .223" diameter?
Just got back in, yes it's a thing, limited choices but worth a try.
My uncle had 218s, Hornets, k-hornets that I remember. His one Bee wasn't much of a shooter until he tried the smaller bullets. One other one didn't care as long as they were short. He used a lot of Speer 45gr sp.