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Old December 10, 2019, 02:20 AM   #6
Senior Member
Join Date: October 13, 2001
Posts: 300
I understand that too slow of a rifling twist rate can fail to stabilize a bullet.
But, is there such a thing as over-stabilizing a bullet with too fast of a twist?
(not asking about what is the "optimum" twist rate, only if it will still stabilize)

Note that many 5.56mm AR's are twisted 1-in-7" and yet there are some
manufacturers that load 35-40 grain "varmint" bullets in .223/5.56 ammo.
(the standard weight bullet in most .22 rimfire ammo is 40gr)

And since .22 rimfire bullets are traveling at only about a third of the velocity of
5.56mm centerfire bullets, would a 1-in-7" twist make that big of a difference?
Watch your top-knot.
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