Most accurate load for PU sniper?

[MustanGrande]

I've finally finished my very first solo hand loads:
Privi brass, once fired.
174gr .303 (.311 dia) sierra match kings
CCI 200 primers
38gr IMR 4064
Full-length sized
COL: 2.8525"


My plan is to start off on that near-base load, and then work my way up, noting what the rifle seems to like, as well as cooking up a batch of neck-sized cases. I was wondering if any of the more experienced guys around here would be willing to share their accuracy loads. I'm interested in seeing what this rifle is capable of with quality ammo.

[Outpost75]

See my recent post on results with my Tikka M39 "ersatz sniper"