Gary
I don't need loads that are approaching the speed of sound. I don't know where you came up with that notion. I used Herco powder because it takes up more space in the 32-20 case than other powders I have tried. What I am shooting for (pardon the punn) is 800 fps +/-. So, with that said, and using a heavier and longer bullet, I have to start somewhere, right?
Alliant flake powders never were famous for dropping consistant powder charges, at least that's my findings after loading ammunition for 60 years. I'm going to try BE-86 in my next testing. I am looking to get lower ES's, and lower SD's. I have used both of these powders when I first started with this cartridge, while using the 100 rnfp bullet. Apparently, with this last range test yesterday, the revolver really favors the heavier bullet. The speed of sound has nothing to do with my testing. I have to start somewhere, right?