Another question about chambers and chambering. How long does it take, on average, to chamber a rifled gun barrel?
Individual custom gun, or in serial production line. As long as it's the usual method, with lathe, some common handgun/rifle tolerances, not benchrest autism with absulutely zero runout.
I have been reading these stories about chambering a single barrel taking several hours, not counting the boring and rifling, chambering only. And that reaming by hand reamer would take weeks with same formula, aka. full 8h work day in lathe. What the hell are these people doing, are they grinding a single atom layer per turn and work hardening the bit instead of cutting, or is this some sort of inside joke I just didn't get? I thought it would take a minute or two to cut, maybe a bit more to center the lathe. Please educate,
Also, how much do you consider acceptable off-bore runout for pistol and rifle chambers, respectively (again, not benchrest, but the average production sample).
Thanks.