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Old 08-31-2020, 04:16 PM
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Nevada Ed Nevada Ed is online now
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Originally Posted by Warren Sear View Post
How are you able to calculate pressures from chronograph data? Please explain. Are there formulas that you use?

A chrony gives you the fps to help your weapon reach factory speeds and allowable pressures.

Generally, a slower powder will get higher fps with lower pressures but this is not always true !!

I have had slow powders max out before reaching fac dup in some of my test, so you do need to use care, with all the components out there, that can be used.

Stay safe.
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