Thanks to all for the kind remarks.
The one that mimics a barrel with bands has a 3/4" hole in it and holds a small handful of buckshot. I see it keeping company with the fowler I am to take delivery on in early 2021.
GA Turner, looks like you spent some quality time with a lathe. Very nice results.
I find working on small projects like these relaxing, even if its only 15 minutes at a time. I'm thinking I will come up with a couple scraps of walnut or maple for the next ball tube project, or two.
Take Care,
Kevin