They still make 270 grain SP, not RN. I have quite a few of them. Where I hunt, I need to keep away from temperature sensitive powders. I have had bad experiences with WW785, WW760, & H414. I think WW785 was the worst. I had tested a very accurate load in my 300 Win Mag with WW785. I took it out to the Ft. Peck range; it was a little over 100 degrees. The last round I shot had the base expanded into the bolt so that I had to take the bolt out and put a lot of side force on the bolt while the case was in a vise to get the case out of the bolt.
Before I mounted a scope on my 375, I shot this load (iron sights)

375 H&H AI, Winchester, Pre-64 70, 300 grain Hornady RN, 85 grains IMR4350, 2.54 MOA

I've loaded up some 270 grain loads and will be testing them.

Last edited by Bugger; 05/17/22.

I prefer classic.
Semper Fi
I used to run with the hare. Now I'm envious of the tortoise and I do my own stunts but rarely intentionally