P&G,
The .19 Badger is much closer to the .221 Fireball. The Badger uses the .30 carbine case. Calhoon preferred the carbine brass to the Fireball because of availability and strength. In my opinion, and I have both of them, the Badger is far and away a better round. No comparison. Accurate, flat shooting, smooth feeding,(no rim), noise is louder than the .19 Calhoon, but not by much.
I do not shoot at any public ranges around here (SE PA). Too many idiots out there. I do my shooting at a private club. E-mail me and perhaps you can shoot as my guest.
Take care,
Jeff