Thanks for the info. I've got quite a bit of experience with the 308, but this is my first experience with an M1A. I'm glad to hear that my favored 165 weight range works well, and the 4895/4064 powder range works, also.
I've always been a curmudgeon - now I'm an old curmudgeon. ~Molɔ̀ːn Labé Skýla~