Medphys, didn't wanna put this on open forum & hijack a thread. I respect you&concede you know more about NFA stuff than I.
However, the reason "gunsmiths" charge so much more is they don't have as much work as a General machine,or tool&die,shop. Also, a gunsmith may thread 5 barrels a week, whereas busy machine shops usually have a guy whose only job is on a thread cutter.
I grew up at the knee of a great gunsmith(he "manufactured" over 150 firearms,(every single part) including at least 12 FA's(pre86). Also, my father-in-law is a career machinist w/over 35 years on the job.
I hope this answers my reasoning to the answer I gave re: bbl threading.
Sniperdoc
However, the reason "gunsmiths" charge so much more is they don't have as much work as a General machine,or tool&die,shop. Also, a gunsmith may thread 5 barrels a week, whereas busy machine shops usually have a guy whose only job is on a thread cutter.
I grew up at the knee of a great gunsmith(he "manufactured" over 150 firearms,(every single part) including at least 12 FA's(pre86). Also, my father-in-law is a career machinist w/over 35 years on the job.
I hope this answers my reasoning to the answer I gave re: bbl threading.
Sniperdoc