I think years ago when I started loading for the 30-06 I tried the IMR4064 first with no luck. After finding an excellent load using 57gr 0f IMR 4350 (max) and a 168gr SGK I never looked back except to load some accubonds following the same recipe. Sounds like your 4350 load is a little light to me especially with a 150 gr pill???
Sorry no more help on the 4064 except that I didn't find success with it either.
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