Thank you, Jim Kibler, for the excellent kit. It might not meet the high standards of this forum, but I got what I wanted: a shooter.
I had the camera all set up but must have bumped it, because I lost the focus. But that will make the next picture less painful to view:
I just centered the sights on the barrel by eye and took it to the range. I shot the first 3 shots, tapped the rear sight the tiniest bit, and shot the second two:
Then I tried offhand. Need to work on my breathing!
60 grains of 3F (what I had in my horn), some really old .535 balls I found in a box, and some random pillow tick pre-cut patches.
I'm a happy man.