I find this very interersting. Thanks for posting your results. I have one question. Was this pressure testing done with a pressure gun in a lab (or something similar) or was it done with one of the strain gauges that are available to hobbyists? The data certainly looks thorough.

Thanks,
-Bob F.

One question: The data shows two offsets, upper right. One is probably to account for the fact that the chronograph is several feet downrange. The other seems to be there to account for the effect of the brass on the pressure (the brass does relieve a little of the pressure on the barrel, about 5,000 PSI worth). So the question is, have these offsets already been applied to the data, or should they be applied by the user?

Nice post. Useful information. Thanks.

Posted for member M98:

THX