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Calculate what barrel twist is needed for a stable projectile or decide what bullet is needed to shoot your bullet with stability in your existing twist. This uses a formula that is more accurate than Greenhill, and also considers atmospheric conditions. You may either set the current conditions, or use the default 'worst-case' ones to ensure stability for universal use.


Also see my other apps:

BulletFlight M

BulletFlight L1

BulletFlight L2




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Rated 2/5 based on 2 customer reviews.


5/5 stars

Neat Program!

Excellent program, and it works.

0/5 stars


Love the app


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The information may be outdated (2011-04-30 22:45:58). For actual information go to iTunes

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