Thread size for model 1917 ejector rod

[rct269]

Yes I cleaned up some beautiful walnut stocks and will give it a zinc park finish once I fit and test everything. I already made up a bunch of handloads for it.

So in absence of finding a tap, does anyone have a recommendation for a smith smith that can fix this for me?

See Post #19.

Southern Precision is an old time/long time machine shop/gunsmiths/ inventor/developer of the HU-DU (sp??) muzzle brake. Have a look at their videos on that! (I don't know beans from apple butter about big bad thumping high power rifles, but their muzzle brake tames them from Lions down to house cats!)

They're out in the weeds near Maryville, Tennessee (S&W's new digs). I've looked for, and can't find their card, but if you Google Southern Precision (whose whole name might be Southern Precision Machine & Tool or some such), you'll come up with them.

Bottom Line: If they can't fix yours, they can make a new one.

My one and only experience with them was impressive! I figured on a looooooooooog wait for a job that was done ( I don't remember exactly.) but in a matter of days----and fit and functioned perfectly!

Perhaps the most impressive aspect of their operation is their staff---part of which are ancients who speak with the authority of been there and done that---and in a tone which tells you to check around if you like, but you'd be wasting your time.

Ralph Tremaine

 

[mikepriwer]

As I said, the size is 10-48 for K-frames. I bought a 10-48 tap, and die, and as a test, I drilled and tapped a hole, and then tried screwing an extractor rod into it. It fits perfectly. I also had a machinist make a 10-48 screw, which I then screwed into the threaded test hole. It fits perfectly. This is why I'm convinced it's a 10-48. There is a question about thread contour, which I found no reason to worry about.

Numrich had, and probably still does have, extractor rods. I bought several, and also bought several screw-on mushroom nobs. I've used two or three of these so far, because the originals were ever-so-slightly bent.

BTW, the length of these rods is 2 11/16".

If I can be of any help, let me know. I can send you one of the slightly bent rods, which you can use to see if it will screw properly into the extractor base. Do you need a nob, as well, or was your rod a one-piece rod?

Mike Priwer