Decades ago,, I think it was Iver Johnson who made a 1/3 scale Gatling gun in .22 RF. I could be wrong on the maker.
However,, one of the ones they made was given to the Gatling family. Mrs. Gatling was from Asheville NC at one point,, and somehow her family had it locally. I know where it now lives. It's brass, and cool as heck looking.
Sadly,, it's owner was buried last week, and I'm not sure what the family will do with his collection. They are hunters & shooters, but not to the level of collecting as my friend was. But I will get an update on it later.
I had been invited to shoot it with my friend,, but we never got around to doing so.
Yep,, it'd be fun,, and in .22 RF,, not terribly expensive to shoot.