Seems like I just keep coming back to 4320. It's what I started with over 50 years ago and it seems to beat everything else or at least be in the running accuracywise in just about any medium velocity round I load.
Just finished a ladder with Varget, 4166 and 4320 in the 308 and guess who won?
Don't see much mention of it but it works for me.

I am continually astounded at how quickly people make up their minds on little evidence or none at all.
Jack O'Connor