Mle 1822/67 Tabatière rifle
Produced by the Manufacture d’Armes de Saint-Etienne c.1822-41 and later converted c.1867-70.
17,5mm brass and cardboard Tabatière centerfire cartridge, single shot, breech loading, the breechblock double as an extractor.
Because it’s called the 1867 Tabatière people just assume it’s a copy of the 1866 Snider conversion, let’s just get that out of the way : it was developed in 1864 so the jury’s still out.
It’s an otherwise very similar modification in concept, with the main functional difference being the addition of a groove running from the breech along the back of the stock on the Tabatière conversions to load rounds more easily.
Such conversion were realized in France to supply the army with more breech loading rifles than the production of Mle 1866 Chassepot needle rifles alone could offer, resulting in the army tapping in the three previous types of percussion musket. This one was a Mle 1822 T bis.
This resulted in pretty big guns firing pretty big cartridges.