How does a fast twist rate affects lighter bullets?

chasep255

New member
I have a standard AR with a 1:9 twist rate. I know this is supposed to be good for bullets around 55gr. I also know that it may not be quick enough to stabilize a heavier bullet. However, what if I wanted to try shooting some lighter bullets say 36gr. How would the quick twist affect these?
 

jimbob86

Moderator
If you drive a light bullet fast enough out of a fast twist barrel, it may fly apart on exiting the barrel from too much rotational force.

I have also heard that the faster the twist, the harder it is to achieve top velocities..... and pressure goes up because the bullet is harder to get going.... made sense to me when I heard it.....
 
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