Got off work a bit early so I got the chrony out.
26" Shilen
140bthp
Win 243 brass necked up.
42.2 is my low node with 2731 avg.
Temp is 92.
43.9 is my high node, avg was 2843 and brass and primers still look good, don't know how much higher I could go but brass life is more important to me than speed and I'm happy with 2800'ish
Accuracy was still good but the bench I have at home is the Rube Goldberg poster child and vertical stringing is always an issue.
Need to rig up a way to set up the chrony for prone.
Ill load 25 of each to test at distance and decide.
I'm quite happy with this powder as it turns my low dollar home build into a pretty solid performer.