As for removable cylinders during the Civil War - they had them. Especially later in the war. They could switch out the cylinders similar to a magazine change and they would carry a bag of them. This wasn't possible on the 1860 Army because you have to break the gun down to remove the cylinder. But they were able to do it with some other models.
Steel framed 1858 + Kirst civil war conrverter = @ $510.
No "competitive" value wise against modern firearms but that loophole is cool as hell especially for areas with heavy restrictions on centerfire hundguns.
Versatility wise this setup is darn usefull. It's a lot easier to make black powder from scratch than smokless. This is a weapon system that can fire cartidges or BP loads if cartridges are nowhere to be found. Some BP revolvers can even fire shot apparently. Making them great bush guns if not "weapons of war". More frontier utility than John Woo bullet hose. Nothing wrong with that IMHO.
Even in and emergency, defensively speaking five shots are a lot better than none if TSHTF.
I like this find Devil!
I have a huge respect for blackpowder weapons whether or not the gun control crowd is really aware of them. Have you seen the size of a musket ball? Can you imagine one of those things going through your chest at low velocity? Also, old school muskets with bayonets are pretty badass melee weapons.
It all just goes back to how the gun control crowd is ignorant and pretty much driven by sensationalism, instead of any real understanding of trauma, wounding, and the capabilities of archaic weapon systems.
I have an 1858 Remington reproduction. I love it. Yes you can exchange cylinders for a faster reload. But it's still nothing like slapping in a clip. Especially when you've been shooting for a little while and you get fouling on the cylinder pin. Also for the op if you use the lubricated black powder revolver wads you don't have to grease the cylinder to prevent chain firing. It's not authentic, but it's a lot more convenient.