Just FWIW, there was a rumor years ago that someone digging around in an old depot found four (4!) Gatling guns, brand new. They were in .30-'06 caliber. As I say, it was only a rumor and probably a tall tale to boot, but wouldn't that be a nice find?
No way I would believe that. 30-06 was develeped in 1906 - long after the Gatling gun was long obsolete.