Not PeteM but if you look the chart over closely, you will see one of the curves was run for Black POowder. That's what it has to do with BP. Pete ran the chart in responce to my having stated the pressure black had generated in this test. Thanks for the Chart Pete. I had never had opportunity of seeing that top Ballistite curve. I knew that a 5th curve had been generated in the original, but did not know where it fell or with what powder it was taken.

Miller/TN
I Didn't Say Everything I Said, Yogi Berra