I understand for the sake of time and components that holding off load development until the barrel speeds up and settles down is less than Ideal for your situation or most people, but it is recommended.
How about doing another "Satterlee" test over an OCW Target. 3 shots at each charge weight and use the avg velocity of each charge weight. This will both show you what you want to see on the chrono as well as on paper. ES is too sporadic to chance basing everything off of one reading. That is similar to what I do. I see a lot of new reloaders fixated on the high node because of the math but in reality many find greater load stability and accuracy in a lower node. Just something to think about.
And I'll say this because I feel like I offended you on Rokslide. Everything I say is with love. Just trying to help a brotha out
Joe
Try a CCI 250 primer with #3
What load?CCI 250: ES 8, SD 3.6, Ave 2988
C
What load?