Brazing a new lug on a shotgun?

[PTK]

It is in any way unsafe to braze a new lug on the underside of a double barrel shotgun about 5" from the breech face? I'm mainly worried about the heat of such an operation in some way damaging the integrity of the barrels and leading to failure upon firing.

If brazing isn't the ideal operation, what would work best?

 

[ieszu]

deleted

 

[rcmodel]

Many older doubles are soft soldered together from one end to the other.

High enough heat to use silver-solder might cause things to come unstuck unless done very carefully.

For sure I wouldn't try to braze it!

rcmodel

 

[Jim K]

What gun is it and what is the purpose of the lug? Does it retain the fore-end or is it a locking lug? If the latter, I wouldn't try either brazing or silver solder as neither is strong enough, and welding would probably destroy the barrels.

Jim

 

[PTK]

It holds the barrels to the frame, but isn't the locking lug. It's the fore arm piece (the name escapes me presently)

I ended up roughing things up with 80 grit and using JB Weld. It didn't have to be pretty, just functional. For what it's worth, this was to fix a $20 shotgun I picked up that was otherwise sound.

 

[rcmodel]

It holds the barrels to the frame

Is it the lug that hooks over the pivot pin and lets the barrel rotate down when you open it?

If so, for god's sake don't shoot it!

The JB-Weld will not hold it, and the barrel will blow off the gun the first shot.

rcmodel

 

[ieszu]

If so, for god's sake don't shoot it!

Amen to that!

 

[PTK]

No, no, it's the lug that holds the fore-end to the barrels, which then holds everything together upon opening the action. I'm not a complete idiot, here.

It's been shot 25 times with no ill effect thus far. Looks like it'll do the trick.

 

[BWB]

Probably won't last. Soft solder is the thing here, but you must protect the ribs and barrels from heat because they are assembled with the same stuff and will delaminate. Heat sinks are the answer, either wrapped water soaked rags, or better yet cork and fill the barrels with water. If you don't do a lot of this sort of thing, you might want to find a gunsmith who does.

 

[PTK]

Well, if/when it breaks I'll figure out how to do it myself. This sort of thing is why I usually don't work on double barrel shotguns, but then again it's for a junker shotgun. I figure any use I get it good.