We got to shoot a garden gun at the Flatwater sxs shoot out in Nebraska a few years back. interesting experience. Like the poster above, I live far enough from civilization that I can shoot somewhat more potent
guns and loads without disturbing the neighbors. I think the last time I did that was a case of termination with prejudice: Porcupine decided to turn the door on our garage into lunch.

The Brits also have guns they call rook rifles. Similar relatively low power but useful to eliminate pests that are not overly large.