This is only the second time I have ever hears of this happening to a repro. Or any other double for that matter. They SHOULD be hard brazed and should be quite a feat to have one come loose.

That is the only time I have seen a photo of a pulled lug.
It looks like from the photo that it is just soft soldered. So it should be able to be re-soldered in place.

This is a first I've seen on a repro.

I agree with Bryan that it looks like it was soldered & should be able to be repaired fairly easily by just about any gunsmith that knows how to solder ribs.

Art's gun shop in Missouri might be another place to contact.

That’s the main barrel lug. Wow.

I am biased towards Philip Crenwelge in Quitman, TX. The great smith's are out there, but they are getting harder and harder to find.

Since no one has ever seen this, I suspect that a grand total of effectively zero good gunsmiths have any experience with this. My first thought too was that any number of good welders or machinists could solder this successfully. It might be a lot easier to find a good machine shop locally than a good gunsmith. It looks like, after cleanup, the locating pin should make it easy to return it to alignment. A gunsmith that is good at soldering would be the best choice, but I would trust any competent machine shop if they protect the blueing with heat paste.

Give Dan Cullity in Sandwich mass a call. He can fix it I'm sure

The lug should have been high temperature silver soldered or brazed. A low temperature solder like most gunsmiths use on ribs wouldn’t be strong enough to hold a lug down. Reattaching the lug properly is not for the faint of heart. The high heat required for silver soldering can make clean up difficult and the location of the lug has to be perfect.

Well said with good points made.

Out of curiosity. Do you have the talents to do a job like this? Do you still do SxS gunsmithing?

At this time I would decline tackling this repair. By the time it’s soldered back down, polished, and re-blued it might be cheaper to buy a set of repro barrels that’s floating around for sale and have it fitted and renumbered to match the gun.

We just bought a laser welder for the shop and are in the process of getting it setup. I expect to use it more for filling in pitting and welding barrel hooks, but it might be useful to weld the seams on something like this for added insurance.