S&W 29-3 barrel threads? Buntline idea

[justashooter]

Looking at a reasonably cheap 29-3 for use as a donor gun in a buntline/rifle project. Have some 18" barrels and wonder what the thread pitch on these 29-3 are. Understand that S&W typically uses 36 TPI, but can't find a diameter chart with shank dimensions and such. can get this off of the donor gun eventually, but like to know all of the details before plunking cash and starting the project.

Your thoughts?

[Pavogrande]

Well, I don't know by number but:
--- Victory 38S&W -- thread .536x36, shank length .790, throat od .502 x.210, length of thread is about 19/32
-- K - 6" 38spl -- thread .534x36, shank length .790, throat od .493x.210, length of thread is about 9/16"
-- ? 4" 357mag -- flat top, full lug on bottom
Thread .534x36, shank length .740, throat od .502x.170, length of thread about 9/16"

those are the three barrels I have available to measure --
Hope this is of some help -