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RPM formula

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Unread 08-24-2002, 02:15 PM
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RPM formula

What is the formula for caluculating RPM for a certain twist and velocity?
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Unread 08-24-2002, 09:00 PM
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Join Date: May 2001
Location: Windham, CT - in Moo-Cow country
Posts: 1,033
Re: RPM formula

Divide the number 12 by the twist in inches, take that answer, and multiply by the muzzle velocity (fps), and multiply by 60.

The answer is in "RPM"

Spring has sprung, da' creek has riz, I wonder where dem kitties is? Here, kitty kitty kitty.

LRH member #23

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Unread 08-25-2002, 12:48 PM
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Re: RPM formula

Thanks Cat
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