The industry trend has been towards tighter and tighter twists, 1:7-8 are probably the most common these days is cartridges from 2600-3200fps.
308 seems to be one of the few cartridges that still comes standard in a slower twist but looking around the a few 1:8 twist barrels popping up.
If you go for a shorter barrel length I don't think 1:7 twist will be an issue with 308.
Especially considering 300 Norma is more or less standardized on a 1:8 twist.
If you don't end up buying the blank I'd be interested in it.
Been thinking of doing a 300blk Tikka build for a few years now.
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