LOL, I know exactly what you mean Joe!
When I am trying to make paper for the first time, with any of my rifles, the first thing that goes through my mind is, "God, I hope I don't hit my target frame"!
Same thing with the Chronograph .....I get it all set up, the target looks good when looking through the sky screens for alignment, and then, just seconds before I touch one off, I'm thinking, "God, I hope I don't hit my Chronograph"....
Joe, I'm no expert when it comes to PRB in a smoothie, far from it.
But from what I see, and assuming your hold was the same each shot, my impression would be that that ball needs more speed, and a wee bit of left windage.
A tighter patch might help, but I would definitely try FFg and use a hard / harder to start PRB.
I've seen similar patterns and they don't come from sight pictures.....try changing powder first.
Uncle Russ...