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Tools and Equipment

Now I have a metal lathe, what should I make?

Discussion of tools and equipment for gunsmithing and refinishing of Mosin Nagant Rifles

Re: Now I have a metal lathe, what should I make?

Postby Shepard » Wed Jun 18, 2014 11:23 am

jollyroger43 wrote:How about a tap for the receiver threads. .975x16 with 60 degree thread pitch. Then I could rent it from you to fix the threads on my receiver. I messed one up when I got to aggressive trying to install a Mcgowan heavy barrel. I just ordered another receiver from Pat Burns but I hate to junk this one. Can you help me out?


My McGowan barrel needed a lot of fooling with to make it fit. I had to do lots of lathe work. It was way oversized. As for your tap -- I contacted a company that will make you any tap you want -- to your dimensions -- .975x16 at 60 pitch = $176.00 and thats just for the plug tap. You will need a bottoming tap to finish the holes thread evenly all the way in. That would be another 176 plus dollars as its a different type of tap.
I walk in the foot steps of Carlos Hathcock -- to my end.
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Re: Now I have a metal lathe, what should I make?

Postby Grimstod » Wed Jun 18, 2014 1:32 pm

jollyroger43 wrote:How about a tap for the receiver threads. .975x16 with 60 degree thread pitch. Then I could rent it from you to fix the threads on my receiver. I messed one up when I got to aggressive trying to install a Mcgowan heavy barrel. I just ordered another receiver from Pat Burns but I hate to junk this one. Can you help me out?




Don't use a tap. You will make it worse. What you need is an interna thread cutting tool holder.
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Re: Now I have a metal lathe, what should I make?

Postby Grimstod » Wed Jun 18, 2014 1:33 pm

And a lathe with a good spider setup. Are you a smith?
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Re: Now I have a metal lathe, what should I make?

Postby Shepard » Wed Jun 18, 2014 7:08 pm

And most of all you have to possess the ability to over cut threads and bring the lathe in over thread timing. Cleaning damaged threads with a tap is fine. Making new threads you have to be very careful. Problem with the tap is no one makes it -- so you have to have one made.
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