My rifle seems to like 69gr Sierra TMK burning IMR4166 . 32.5 produced an average MV of 3325. But rifle seems to really like so far 36grs of IMR 4451 behind a 75gr A-Max . Started out with 33grs and worked up to 36grs. From 34grs up accuracy was great with all loads. 36grs average MV was 3228 under 1/2 MOA. Next out I'll continue with incremental powder increases . Also bullets .004 into lands. But .020 away for Sierra TMKs. Also burning these new "Eduron"powders copper build up has been greatly reduced .
