[pavon]

I've known a few people into black powder guns and cannons. It is a fun hobby for them. One of them got into it by way of model rocketry, the rest were folks who were generally into "mountain man" era skills, technology and reenactment (for history and fun, not prepper illusions).

There was also a tradition at our high school to shoot off a cannon each time our football team scored a point at home games (just the powder no projectile).