Don't know what components you have available but for my rifles I go directly to a 175 gr Nosler or Sierra BTHP, a Lapua case, CCI BR-2 Primer, and 43.5 gr of Varget, all assembled to 2.800"
Sometimes this load shoots so well I don't need to bother with any further workup or is it is needed only small adjustments are necessary.
Same combination with 168 gr bullets only with 44.4 gr of Varget.
Just recently got some Lapua 170 gr Lock Base bullets. In my 5-R Milspec they are super with Fed GMM primers, Lapua brass, and 47 gr of CFE223, assembled at 2.830"
Just a couple that really work well for me. Each load shoots .3 MOA average.