Barrel choice for an accuracy international AT 308 firing 155 gr lapua scenar L

[eveyoz]

I'm about to build a 308 barrel setup for these projectiles fired from an accuracy international AT. I have a 1-12 barrel knocking around but I'm unsure whether this twist rate will work well with these projectiles and varget. Im looking at an 18" ish barrel or maybe shorter (plus brake) and I wonder if I'd need a different twist rate for these projectiles and barrel length.

Whats your opinion?

 

[6brshooter]

If you got the barrel, try it. If buying, id lean towards a 10 or 11.25 twist for that bullet and shorter barrel. H4895 will be your friend.