Today we did a cure time shootout for powder coat.
The usual 75 gr. bevel base, 26.3 gr. WC844, Rotometals reclaimed shot. I didn't verify the BHN of each and every batch of cured bullets because there were so many batches, but I did measure one Durable Black bullet (12.3 BHN) and one Almond Hybrid bullet (13.1 BHN).
Only one 10-shot group was shot for each cure time, and as always "one good group does not prove that a load is good, but one bad group may prove that a load is bad."
*If* we take the results at face value, then Durable Black doesn't like to be overcured, while Almond Hybrid doesn't like to be undercured.
But it's hard to take the results at face value when there was only one 10-shot group for each cure time. Before I draw any conclusions I want to repeat at least parts of the test to see if the trends are repeatable.