Forgot to mention that I want to use H4831sc, or Varget. Nosler lists some powders/loads but nothing I have or am familiar with. Thanks again.
I love Varget in other cartridges, but not in this one, esp over 100 grain bullets.
Your comment about Nosler not listing familiar powders sounds like their on-line data, that data sucks & I don't know why they bothered, they say it is from their number 6, but what sorry choices.
But actually from the Nos. number 6 they used IMR 4831, which is a little faster than H4831. Like WY CH said, you could use Sierra 117 data, which shows a
MAX of 52 gr. @ 3100. As always start lower & work up. Hodgdon data shows the same max with a much slower vel, which happens alot when you compare data and rifles. Vel up in the 3100 range though is very realistic with 24' or longer barrels.
In the std. 25-06 I loaded some for my son last summer with RL25, we got 3225fps with his 26" Sendero & safely. It proved deadly on 2 Whitetails for him last fall. Retumbo is another good one for 115gr & up.
I only mention these other powders in case H4831 does not do well in your particular rifle but H4831 should do fine.