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Normal Topic Dell's Twist Formula - Not a Sticky (Read 1451 times)
John Boy
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Dell's Twist Formula - Not a Sticky
Apr 1st, 2020 at 3:00pm
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Did a lot of searching on the Forum for Dell's Twist Formula calculator - can't find it
Any help is appreciated
  
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joeb33050
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Re: Dell's Twist Formula - Not a Sticky
Reply #1 - Apr 3rd, 2020 at 6:33am
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Here it is.
Charlie Dell's formula for calculating the minimum twist rate required.                  
This formula is most appropriately used for slow bullets at long range.                  
(3.5 x sqrt MV x Caliber sqrd) / Bullet Length = Required Twist Rate                  
  
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