Also I do not think velocity has anything to do with stabilizing the bullet. Slower twist allows the same load to shoot faster because the high twist rifling drags the bullet down a bit as it is trying to go down the barrel. That's not to say you can't drive a fast-spinning bullet at high end speeds and be stable. So in other words I got the feeling you are over thinking this and are worried about issues that don't exist. :) I am famous for it. .
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