You are using an out of date browser. It may not display this or other websites correctly. You should upgrade or use an alternative browser.
alternatehistory.com
The Maxim was the first successful type, but I wondered if it was possible for there to be earlier, or different, approaches.
I'm excluding the Gatling, as externally powered.
What I have in mind is something like the Webley-Fosbery action combined with a Colt rifle (or an early Aden). Is that practical?
Yes, I know, black powder is a drawback; for sake of discussion, ignore the problems. Although, it crosses my mind, if somebody has invented a rifle-caliber *Aden, there might be impetus to improve the powder to overcome fouling...