1:12 twist is pretty standard for a .308 Winchester. The 1:12 and 165/168 gr bullets is a very standard, very good combination.
I've run through several barrels in that twist and also in 1:13 twist. Have seen very good accuracy with bullets from 110 gr varmint bullets, to 190 gr Sierra Matchkings.
Best accuracy out to 600 yards was with the 155 and 168 grain HPBT match bullets from Nosler and Sierra.
I don't hunt a lot with my .308 Win rifle, but usually shoot the 165 grain Nosler Ballistic Tip when I do. It's quite accurate, and deadly on medium game.
Regards, Guy
