I've looked at a Circuit Judge. A look was enough. I don't even want to hold one of those silly things, much less own one. One of those deals, "I'd sure hate to be seen in public with that."
A .410 shotgun is probably the most practical squirrel gun a person can use. Light weight, low noise, negligible recoil...
You're from BATFE? Come right in! I use all your fine products!