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In your Sig line, is that an honest question? about C U P / psi. ?

I have an equation from "Denton" for converting C U P --to PSI.

If you're serious I'll post it.

Jerry

Mostly tongue in cheek. It goes back over a decade to some forum discussions where people had no clue what C.U.P. and piezo electric measurements are yet thought themselves expert enough to help others blow their faces off.
I'd be interested in seeing Denton's formula as I've never seen a single one that powder companies would agree work. Maybe because of liability lawyers, maybe they have no need to do conversions, I don't know. I'm curious though.

First off, I take no credit for this equation except to say I got (copied) it from Mr. Denton B

He has written about it more than once SINCE 2010 when I joined the 'fire. Hopefully he will chime in to define it's dependability. I've read it from him, but don't remember exactly.

It goes like this:

C U P X 1.516..-17902= PSI

my example only...50000 CUP X 1.516 = 75800

75800 -17902 = 57898 PSI
--------------------------------------
50000 is roughly 86.3 % of 57900
NOTE - I take NO credit just THANKS to Mr Denton.

Jerry

Thank you. I'm going to do some comparisons from different data and satisfy my curiosity.

You are welcome.

In answer to your question, How many PSI in a CUP, it's more than 100% <grin>

Even tho this subject had been briefly discussed here on the 'fire, I found that equation when I Googled, PSI/CUP. It brought me to Mr. Denton's discussion/presentation.

There you'll find much more info FROM him.

Jerry

My favorite last year was a .243 Improved and 6-06 Improved. The year prior was a 7WSM and a 7-08, I'm in contemplation what will spark my interest this year. I have a couple light quarter bore barrels that may have a purpose.

Bottom line: Most any caliber with a good bullet is the best on any given day, it's just fun to build and switch things up a bit.

Have Fun

Rob