Can't go wrong with a 7mm or 308 (I have both and a 338 Fed), the A-Bolt II is a touch smoother than the A-bolt, but I like the fluted bolt body of the A-bolt. Bead blast the bolt body matte (or nickel teflon/boron or matte hard chrome finish) and they are perfect.
They are great! I have the II SS in 243 and wood/blue in 270WSM... hoping to pick up a SS in the 7-08 or 308. Had a .243 AB I in wood/blue and sold to a friend who was learning to hunt, he shot a nice muley with it this fall!
There is just
something about those generations of A-bolts!