Mark,
How are you estimating the pressures?
It’s based off the various data sources that I used which listed the actual tested pressure that was measured by the powder company. Note that some of my numbers indicate CUP and some PSI. That’s dependent of which system the powder company used that provided the data I was starting from. My numbers on pressure could be close or way off. No way to know w/o a strain gauge and pressure equipment. At best that part is a semi-educated guess mathematically based on the powder companies published data and what my chrono was telling me. If you need me to show you any of the math behind it I can show an example. Just remember this pressure result is only a guess/estimate, not an actual measured result. Many factors contribute to pressure. But as our very own John Barsness has taught us, the chrono can tell you a lot and there is NO free lunch.
Does that help?
Mark in GA
