I used Berger's twist calculator...http://www.bergerbullets.com/litz/TwistRuleAlt.php...and determined that for the 168 Nosler Ballistic Tip, achieving a 1.5 stability factor at 0 degrees and 0 feet altitude (worst case scenario for stability), assuming 2900 fps, requires an 11 twist.
With that said, I have a synthetic stocked, go anywhere, hunt anything 30-06. It has a 10 twist barrel. If I were going to hunt low elevation in cold weather I would want a 10 twist.
I have another 30-06 on the way. It might be done next year. I'm hoping for a beautiful wood stock, nice bluing, etc. It has an 11 twist barrel, but I don't know that I would reach for it first when the weather is miserable.
