A Mexican Army 8mm Pieper Revolver

[jmoore]

Just like the Nagant or Lebel. Not really a rare idea. Doesn't look like it, no room for the cylinder to move laterally.

Understandable confusion from the photos so far. Here's some that ought to clarify:




Recessed on both ends of the cylinder.

(BTW, the Lebel revolver isn't a gas seal design. Just sort of "steam punk" coolness.)