You can figure it about like Bullseye, maybe a little faster or a little slower depending on testing method. I have used it in .44 Mag plinking loads but WOULD NOT recommend it without first talking to Hodgdon. Surprisingly they may know something the rest of us don't.
The key elements in human thinking are not numbers but labels of fuzzy sets. -- L. Zadeh
they may know something the rest of us don't. 