[TheForge] Furnace Brazing

[Jerry Smith]

I have run into a situation that I need other peoples experiences to help me. I had a lug braek away from a shoitgun barrel. This was made by Cooey in Canada under the Winchester name. The lug and barrel were brazed together by the process of furnace brazing. I think I can duplicate this method with my propane forge, but I am not sure about what brazing materials  to use and what temperatures I have to achieve. I understand that I may have to ream the chamber out again if it deforms. I was thinking about doing some spot welding with my TIG welder after I have this brazed back together.

So does anyone has experience in doing this form of brazing? 

Thanks in advance.

Jerry