I managed to break one in the gun store while dry firing when the salesman suggested that I try dry-firing it.
I was pretty much embarrassed, but only kind-of, and I apologized and he thanked me... better to have it bomb out right there at the gun counter rather than get sold to a customer and bomb out on it's virgin range trip.
This was a brand new four-inch.
I've seen the cut-away photos of the design. I will stay away until Smith & Wesson or Ruger manage to get the rights to build a bottom-barrel revolver.
Attention Brass rats and other reloaders: I really need .327 Federal Magnum brass, no lot size too small. Tell me what caliber you need and I'll see what I have to swap. PM me and we'll discuss.