That's half the fun playing with MLs, looking for the right bullet/powder/primer combination. I will say this, it took very little time finding the sweetspot with BH209. Just picked up a discontinued CVA Plains rifle in black nitride while they were available. Hope to get it out shortly and start the process. Not messing with anything but BH209. Hoping the TC 200gr Shockwaves shoot as well out of it as they do my Prohunter.