Ted,
Here are two pix of my Darne R-16 10 gauge with the Bruchet factory restock and St. Etienne triple proofmarks on the replacement barrels that Kirk Merrington fitted some years back.
Gun weight has gone up to right at 7 lbs. thanks to the denser walnut used. It's the short ten, with 75 mm chambers which works out to 3 inches, but I make 2-7/8 roll-crimped loads for it. Note that barrels are not choked as I've fitted choke tubes to it, including recent purchase of a skeet tube from the company that fitted the original tubes.
The Bruchet had trouble finding the right proof load to help out St. Etienne, as I understand it. Initially did not pass proof as the shell split. Ultimately resubmitted and passed.
Regards, Tim
