No but i do know guys that have shot 150gr of BH209 with and without sabots using 250gr bullets. Pressures were right up there with many smokeless loads.

The main reason is a test barrel has pressure sensors installed. Your test barrel isnt any good if it may fail. BTW i have several smokeless loads that are neck in neck with BH209 in pressure but you need to use a slower burning powder and more of it...like 60-70grs with a 300gr bullet. Velocity though is much higher even though the pressure isnt that much different.

Go look at the smokeless traces on Dougs board because i wont post them here.