Varget is a good powder for 150's in the 308, but with longer bullets it results in more powder compaction than I like unless I take steps to avoid it. If I had TAC on hand I'd see what I could get out of it with that long GMX.
I'd be interested in relative density of more common .308 powders, like Varget, CFE-223, RL-15, H-380, etc. Even the IMR's. 4895, 4064, 4320.
Lots of choices with that round.
DF
