BMW wrote:dnedative wrote:Welding it wont be an issue, you just mould wetrag heat putty around the bolt and and the three seconds your tig welding it will barely get it hot. Certainly not enough to change the heat treat in the lugs.
What filler wire?
Then just face in a lathe and polish.
Since it's not in a shear area like the lug, 309 will suffice, but if really concerned use 410 filler but there is a need to preheat otherwise it just deposits hard lumps that are difficult to machine. Once welded dump the bolt in a lime bucket overnight to cool slowly. This further prevents hard spots.
I just did a complete repair of a bolt using 410 where someone tried to convert an action to a drop port and stuffed it. The end result was not detectable after machining so 410 is a perfect colour match. 309 is not.
The real issue is the cause like pressure too high or pockets too loose allowing gas to bypass. Faulty primer cups like those 205s years back could be another issue. Fix that first before the bolt otherwise you're back to square one.
Personally i would bush it back like that done in trued up Rem 700 actions. It kills two birds by clearing up the craters and taking the firing pin back to 60 thou to reduce piercing primers. Then you can go the Palma brass route, run more pressure for speed and be unlikely to ever see a primer leak. Easy for me to say as it costs me nothing, but if you go to all that trouble, the gain is worth it as i have seen in my own 260.