Repairable? Yes.

Cost, whatever the smith's hourly rate is for the time it takes them to machine the seats/lugs, plus the expense of heat treating. Then of course, the receiver at least will need to be blued. The other consideration is that the headspace with the original barrel may or may not be "good" afterward. If excess, then you are looking at setting the barrel back or some other means of re-establishing proper headspace. To complicate things, often, the "pocket" where the lugs back will pop back out during the heat treatment process. So, there are two schools (at least) on how to resolve: 1) Machine the seats and lugs if required, then heat treat. 2) Heat treat, then machine and or lap in.

option 2 is usually only viable if the setback is small. Tom Burgess liked this method when applicable.

This receiver had a goodly amount of setback when I acquired it. It needed a new barrel as well. The seats were machined lugs mated, and then sent off for carburizing. Rebarreled to 9,3x62 upon its return and restocked.

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