An 18 round revolver with just 6 shots... It's a novelty but is there any real use for it? You would have a difficult time trying to conceal it, it's not really a large enough cartridge to hunt with, and try to explain to a jury how you fired 18 rounds from a revolver without reloading...
I think I want one. I wonder if it could be re-timed to shoot the top left barrel first then the lower barrel then the top right barrel. Now THAT would be kool!