That's why I asked you if you had an Omega. It has a perfect BP for BH 209, and would shoot the Win primer.

You told me you had no need for it, so............you need magnum primers at the minimum for what you're shooting.

As for cleaning the BP while shooting? Hold gun barrel up. Twist in drill a few times. Done. 5 seconds at the most.

BH 209 is not so hard to shoot. You just have to do what it likes. It's not related to BP in any way except how it measures.