which involved putting 100 rounds through the 15-22. Which worked just fine, so hopefully it'll keep doing so.
Looking at that apparently-new bolt & carrier, got to thinking: I've read of a number of cases of these rifles having a OOB, so I'm wondering if, when a rifle comes in after one, they have a upgraded bolt that they count as 'repairing the extractor'? This is complete speculation on my part, nothing I've heard anything about.
In any case, they paid for the shipping and repair, and it seems to be working as it should.