Ted,
I hear you re: the terminal performance of the Scirocco, but as far as flight characteristics, is there really that big a difference? I used 162 gr 7mm A-MAX to great effect with my 7mm Rem Mag. They provided great accuracy out to 1,000 yds.
Right now, I'm in the process of needing to work up a good .308 Win accuracy load. I'm shooting out of a 24" 1:12 barrel. I suspect 165 gr will be about right for this twist rate. Any other opinions? Favorite powders?
My initial test was with 42.7 gr IMR 4064 and Sierra 175 gr Matchkings. Accuracy was uninspiring at 100 yds.