Below are photos of a H&H hammer gun @ 1900 that I just removed the rib from. The break in the solder showed up when I was refinishing the barrels, as bubbles coming out over a length of about 2" either side of the rib.
After removing the rib, two things are apparent; the loose area was about twice as long as I thought and the amount of rust suggests the gap has been there for an awfully long time. Fortunately the barrels do not seem to be deeply pitted but I haven't started cleaning the area up yet either :>( :>)
In the photos you can see the underside of the rib above the barrels.
cheers Doug
