[Just another Joe]

As long as it is fired by "antique means" (fuse hole), you don't even need to register it.

I think you do. I have a friend that is a civil war buff. One of the kind that goes around redoing the large battles of the Civil war.
He has an actual Civil war era cannon. Says he had to register it with the fed guv in order to keep it.

I haven't actually looked into getting one. I was relying on his experience.

[Old Student]

"I think you do. I have a friend that is a civil war buff. One of the kind that goes around redoing the large battles of the Civil war.
He has an actual Civil war era cannon. Says he had to register it with the fed guv in order to keep it."

I believe that bore size is also a factor. I had a friend a couple of decades ago who had a muzzle-loader with a 2" bore, no license required. Of course, that was a long time ago, and things might have changed, since then. Best to look at current info before springing for a Napoleonic 12-pounder...