if I had your interest it would be the 6.8SPC2 as the right choice, shoot a 110 barnes TSX at 2700! Like that other dude said, and what I see in the field is that bullets matter more than head stamps. Shooting a big +200 pound boar hog in the shoulder with a 308/125 grain Sierra match king might possibly be likened to swatting a bull on the arse with a fraternity paddle; guaranteed to get his attention but sometimes not in the way you had hoped!
. Given the choice of a BO shooting 110 Vor-TX or 308 win shooting 125 match kings sub 100 yards, I would bet on the 2000 FPS Vor-TX having the edge. Just FYI I just switched in my .308 from Hornady 150 BTSP's to the Hornady 150 GMX's for this very reason.
