Weatherby Super Varmitmaster 308 Winchester twist rate???

[Salmonhead]

Anyone out there happen to know the twist rate of this rifle? I have a customer rifle on hand to do custom loads for and cannot find that tidbit of information anywhere. Weatherby doesnt list the that model anymore, not even on their older model section. Apparently only made from 2000 - 2004 for the 308. It is suppose to have a Criterion barrel factory installed by Weatherby.
Any insight would be great.
Thank you,
Paul

 

[Deleted member 115360]

I'd guess it is a 1-12, but that's just a guess based on my experience with weatherby rifles.