#### Mike6158

##### Well-Known Member

The example in the Appendix (Equation 6.1) of Applied Ballistics for Long Range Shooting uses a gyroscopic stability factor of 1.5 but doesn't say why.

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The example in the Appendix (Equation 6.1) of Applied Ballistics for Long Range Shooting uses a gyroscopic stability factor of 1.5 but doesn't say why.

P

There's a tab in the **Analyzer** Module that allows for the determination of the stability factor. It's called Twist & Stability in LB3D. Requires that you input bullet length, actual twist rate, bullet diameter, bullet weight, and MV. Click the Standard Conditions is "ON", and input the value that's highlighted in yellow background in the Ballistics Module. That's about it.

There will be detailed instructions on how to calculate the appropriate stability factor in the LB3 Users Manual provided with your LB3 ballistics program package.

There will be detailed instructions on how to calculate the appropriate stability factor in the LB3 Users Manual provided with your LB3 ballistics program package.

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I appreciate the help

Merry Christmas to you and yours

J

I'll bet Gus fixes you up in short order!