[quote=@Bird]
<Snipped quote by Kimiyosis>

See, you know more then me anyway, haha.  Now that I think about it, I guess I kinda did know that was a thing.  XD  Because I know they got something more efficient then muzzle-loaders, but didn't yet have brass casings.  I just never put it together or bothered to look it up.
[/quote]

Granted, most if not all guns will be single shot still. Unless it is specially custom made.t

However, revolving chamber are limited by th size of the gun, 5-6 shots.

Pepperbox guns are too heavy for rifle size, and the pistol is rather cumbersome.

Harmonica guns are able to be used for  rifles only, but the loader is going to be hell as long for anything past eight bullets.