I never knew they existed till about an hour ago. The flat cylinder was my idea darn it. I missed the patent. I kinda like them. Not sure about Chiappa in general though.
I could see how the lower barrel configuration would reduce muzzle flip. http://www.chiappafirearms.com/products/75 http://gunsforsale.com/ghg/2009/09/25/chiappa-firearms-rhino-new-revolver-with-a-twist/