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Thread: Smith and Wesson third model double action 38

  1. #1
    Boolit Buddy
    Join Date
    Nov 2011
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    Roseau, Mn
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    238

    Smith and Wesson third model double action 38

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ID:	230093I've posted on this before and thought I'd post again because it's been a long time and made some progress. I bought a new barrel for my Third Model double action 38 from Numrich awhile ago. From what I've read, trying to find info on this seems hard, others have too. The description says that the barrels were in the white and needed a forcing cone cut in them. Mine had forcing cone and crown done. The problem was they had no base pin, so you need to provide one. I could do that. Where it got funny was no one seemed to know how this base pin came out of an existing barrel. Threaded, pressed? At least mine (maybe all) is threaded. I made a square piece out of aluminum with the right size hole drilled in it and made a slit through it as so it would clamp on the base pin tight in a vise. Heated the barrel up a bit and tapped on it with a rubber mallet counter clockwise, and, it threaded out. But, as near as I can tell by micrometer and magnifying glass it is .356 diameter and a 54 tpi cut. Very fine work. Now, the new barrel has no threads tapped into them for this, but is drilled to a proper or close tap drill size hole. Threads are the part that needs the work. I've looked high and low, Brownells, custom, no avail for a tap. Does anyone know of such a thing? 9mm x .5 is close, but not quite. I find 5/16 x 56, 11/32 x 32, and 3/8 x 56. Also close but won't do. Any help is appreciated.

    Thanks, Aaron.
    Last edited by ajjohns; 11-08-2018 at 12:13 PM.

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Abbreviations used in Reloading

BP Bronze Point IMR Improved Military Rifle PTD Pointed
BR Bench Rest M Magnum RN Round Nose
BT Boat Tail PL Power-Lokt SP Soft Point
C Compressed Charge PR Primer SPCL Soft Point "Core-Lokt"
HP Hollow Point PSPCL Pointed Soft Point "Core Lokt" C.O.L. Cartridge Overall Length
PSP Pointed Soft Point Spz Spitzer Point SBT Spitzer Boat Tail
LRN Lead Round Nose LWC Lead Wad Cutter LSWC Lead Semi Wad Cutter
GC Gas Check