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Information on Malfunctions and Care of your Model 8 & 81
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chas1949
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Post by chas1949 » Sat Sep 09, 2017 11:05 am

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Last edited by chas1949 on Wed Oct 18, 2017 6:17 am, edited 1 time in total.

Fred
Posts: 82
Joined: Wed Feb 26, 2014 11:10 pm

Re: M8 and M81 barrel thread sizes

Post by Fred » Thu Sep 14, 2017 7:47 pm

I measured my M81 35Rem barrel at Ø.600-24 for the nut. You'd do better with a lathe I think. Custom taps/dies are not inexpensive.

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Phyrbird
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Re: M8 and M81 barrel thread sizes

Post by Phyrbird » Fri Sep 15, 2017 10:15 am

Yeah, we have wasted a lot of time & research, I don't think anyone is making the taps or dies now. And know that many of the threads were designed before anyone dreamed of SAE standards.
Last edited by Phyrbird on Sun Sep 17, 2017 9:53 pm, edited 1 time in total.
Phyrbird
SOKY

Fred
Posts: 82
Joined: Wed Feb 26, 2014 11:10 pm

Re: M8 and M81 barrel thread sizes

Post by Fred » Fri Sep 15, 2017 11:38 am

About any job shop should be able to cut a steel stub to fit the barrel nut threads snugly, then cut some flutes in the stub allowing for debris someplace to go to. Should be good enough to clean out existing threads. One would think that that sort of work would be fairly inexpensive to complete. It pays to shop around.

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