I've always found Gunworks good to deal with, though in fairness most of what we get them to do through work is threading rifles for suppressors. I once had a second hand rifle there having a suppressor fitted, and asked them to re-ream the chamber as there was a slight burr in it which seemed to be marking cases slightly. I didn't know where the previous owner had the chamber reamed in the first place, and there was no record of it in Gunworks' books, but they re-reamed it for free just in case it was somehow their fault.
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