340mag,
I moved to Wy. in 1985,and a .375 is the only cal. I've used for all of my big game hunting. Although in '89 I went to a semi-custom .375 AI. I am completely satisfied and would not consider anything else!
My load in my Win.Model 70 is similar to yours, except that I pushed my Win. 760 to 82.0 grains. Super groups, but the load is bordering on "warm"! memtb