Thread: Micro tig welding .22 chamber?

I have a stevens visible loader that I have been sorting out and tuning up for a few months. Bore is mint!- probably due to the 50 odd year holiday it had when the butt stock broke.
I've got it feeding, extracting and shooting well after making a new firing pin(s), slide lock spring and magazine tube repair as well as fitting a replacement butt stock (which I got through here- many thanks Gun nut!)
The problem that I would like to address now is the nasty divot in the bottom front of the chamber, caused by a home made, too long firing pin and dry firing. Cases tend to bulge into this area and although I use only standard velocity ammo, I'm a little worried about case rupture. Ignition seems reliable in spite of the unsupported section of chamber.
What would be the procedure to repair this and who around the Auckland area should I approach for repair?
Ideas, advise appreciated.