Interesting problem with the 308 and long range shooting. My Sportco has a 1 in 14 twist and it shoots very well with 155 grain Berger VLD or 155 g Amax. I think the Bergers shade the Amax a bit. Haven't tried the 155 grain Scenars. Probably wont now as I'm enjoying the 6 BR too much and the recoil from the 308 is starting to get to me. Scenars are an interesting bullet though, that's for sure and I'd try them if I was going to go further with the 308. The powder I ended up using was Varget (tried H4895 and Reloader 15, both good too). Tested alot of 168's out to 300 meters a year or so ago and the groups opened up a bit when compared to the 155's. It wasn't a huge difference, say 1/2 MOA (or a bit better on a good day) as compared to 3/4 MOA. So, I have stayed with the 155's. Every once in awhile I get the itch to try a heavier bullet, but Berger was clear that the 1 in 14 twist is suited to the lighter bullets. In a way I kind of gave up the idea that the setup was good for 1000 yard shooting, though I could hit a gong out there. The guy who owned the rifle before me restricted it to 300 and 600 meters too. Maybe if a guy found a rifle that would shoot accurately at a higher velocity it would look better out there. But accuracy starts falling off somewhere between 2800and 2830 ft/sec in mine, regardless of powder. Come to think of it, I didn't try a ball powder, maybe that will work as Boomer suggested...hmmmm?
