Varget is one of the best rifle powders for accuracy and being less probe to temperature variations and is a top choice for match shooters.
It is also harder to find and one of the most expensive rifle powders
American Reloading sells surplus powders in 8 pound jugs. The prices including hazmat and shipping (Depending on state no tax, at least for me, Florida)
One of the best powders for many 8MM bullets weights is Accurate 2520.
American sells surplus advertised as "similar" to 2520. They sell other "similar" to for H335. AA2230, 2460, Win 748/760 etc etc
I have bought various "similar" to powders from them and every one was not similar it was exactly the claimed powder and loaded to the same weights and velocities. 8 pounds of powder is $230.00 delivered. That is $27.50 a pound. Varget runs $50-65.00 a pound plus hazmat, shipping and tax,