Thanks for all the info in this thread.
After doing load testing with HS-6 (a cylinder of each @ 8.0, 8.3, 8.6, 8.9, 9.2, 9.5 gr) pushing 158 gr Campro projectiles, I have settled on 8.6 gr as the most accurate in my revolver.
I also loaded 125 gr Campros over 10.9 gr of HS-6 to cure my...