1-10" is more common to handle the more streamline heavier weights. While I haven't run a program on the issue, I would say 1-12" is more appropriate. That said, I also have been a proponenet, of when in doubt a tad faster is better than a tad slower. If you are over stabilized slightly, you may find to things. At shorter range, it takes time for the bullet to "sleep", therefore you may not see it's real accuracy potenial untill 100-200 yds. Then again at extreme range their are other problems, But these range are way out there beyond the norm of hunting.
Personally, in a rifle barrel, I would go with the 12" twist if I had no plans of shooting anything over a 200 gr. VLD.
There is one tip I have learned over the years in hunting whitetails in late season snow. Do not overlook soybeans left standing on the edges of fence rows, woods, creeks, buildings wherever it might be, this is where the deer will be while the food lasts during late season. December/January will pull deer in from some distance away to feed on the easy to get to food.
I killed one of my nicest bucks off of a very small patch of soybeans that was left after rains created a...