Re: M92 stainless 357mag barrel
Posted: 08 Jan 2022 20:46
Jeeze. The guy in that thread was wingin' it at best.
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Reese-Mo wrote:As for a total rebarrel - which is probably the way to go - I would not put money on threads that are hard to cut. Trust me, I've done it, they are ALL hard to cut. But, thread pitch is determined by what is available on the lathe. Don't ask a lathe to cut 21.6 threads per inch. They don't do that. Same with metric geared lathes. They do the standard thread pitch spacing in whole and fractions of millimeters, based on quarter millimeter steps in smaller pitch and half in larger pitch. Braz/Rossi has to use an industry standard pitch, to do otherwise would be too expensive and useless. As for the wacky diameter, they are ALL wacky. The pitch is more or less ok, thread major diameter... you gotta have the old barrel to check that. Next is the thread profile, which could be 60 or 50 or some other odd angle. That's just a matter of grinding the cutter to the angle that is needed.
Yeah that was the example I was thinking about as well.Reese-Mo wrote:Jeeze. The guy in that thread was wingin' it at best.