[QUOTE=Gunhacker;1120915]To determine this you take 1.000 and divide it by the pitch of the thread ( number of threads per inch). An easy example would be if you had a 20 pitch thread (20 threads per inch).
Doing the division comes up with .050" and that is how much the barrel advances per one revolution.
[QUOTE]
Yes your correct, but to not confuse anyone,
All S&W revolvers use a 36 TPI tap. The pitch is .0277 inch. This means 1 full turn of the barrel will move it .0277.
When I torque a barrel on, I hand tight to 10:00 position, then torque it up to 12:00 using the wrench.
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Last edited by 500 Magnum Nut; 10-04-2009 at 08:14 AM.
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