mathman,
I didn't have a chronograph at that time, but I still use the same .30-06 load that I put it up against them. With my .30-06 slinging a 165gr. BT at 2850, the same bullet from my .308 with 51 gr. of H380 behind it hit 3" lower at a measured 350 yds with identical POI at 100 yds. I know that's not conclusive, but I've killed deer with both loads at over 400 yds. I'll swing out to Cabela's and pick up some Varget this afternoon, put some loads together with that and H380 and compare them over the chrono.
Selmer