Re: MAX GRAIN 1:10 16" BARREL STABLIZE
Here is the 'Greenhill Formula' for determining optimum twist rate.
Twist = 150 (d/r)
d is the bullet diameter
r is the length of the bullet divided by the diameter
Most AR shooters are opting for the 1:9 twist since it will shoot all but the heaviest or lightest bullets well. This would cover 90%+ of commercial ammunition. 1:10 would give similar results.
The autonomic nervous system provides for involuntary muscle function - the work of breathing, digestion, and so forth. On some folks, that's a pure waste of ingenuity.