What would you do? Rebarrel gone wrong.

[wind gypsy]

There are guys that make custom adapters if smith won’t redo it or modify an adapter to work for your application.

 

[Shortschaf]

I think suing gunsmith, selling barrel, etc are silly tbh

A good gunsmith would just make it right and redo threads losing under an inch

And a reasonable customer would be OK compromising with the smith just turning down the adapter's shoulder until the OG fits over. 10 minute job including setup

 

[Eleven]

It could be that the GS was saying in order to make 5/8-24 work he needed to take off 2” in order to get the thickness of the barrel so that a shoulder would be there.

OP- I did a 308 barrel that at my desired length didn’t have enough thickness for 5/8-24 with a shoulder. So I threaded it 9/16 then used an adaptor whenever I shot it suppressed. It sounds like this is what the GS did for you. I’m now in the process of recutting and rethreading that barrel to 17”. I’ll be losing about 2.5” when I do it, but I think I’m going to happy with it. I’m changing the purpose of this particular rifle just a bit and the shorter barrel is actually going to be a good thing.