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Ruger M77 MKII threads/Build

 
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  #1  
Old 03-19-2011, 07:46 PM
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Ruger M77 MKII threads/Build

i am doing my own action blue print on my 7mm rem mag. the threads on the action, is this a standard thread across all manufactures. Can anyone get me the thread info on the action? I plan on facing the action and the lands where the bolt lugs rest and lapping the bolt lugs, then chasing the threads. I am a machinist teaching myself gun smithing.

checked it with my gauge and came up with 1-16 tpi (will try that)

machines i am using

mazak qtn-250 lathe

mazak v510 vertical mill

making own picatinny rails for scope and bipod also.

any suggestions would be much appreciated.

Last edited by brainey64; 03-21-2011 at 07:43 PM. Reason: Add to title
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  #2  
Old 03-20-2011, 03:55 AM
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Re: Ruger M77 MKII threads

SWEET!

I'm the oposite, No machines. I'd like to teach myself machining.

Your mesurements sound like they are in the ball park. I couldn't tell you what Ruger threads are, for sure. I deal mostly in ARs.

I'm seriously interested, in picatinney rail for Ruger's with the crazy integral perches. (20MOA)
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  #3  
Old 03-20-2011, 08:58 AM
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Re: Ruger M77 MKII threads

What type of fixture did you make to hold the ruger action?
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Old 03-20-2011, 09:12 AM
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Re: Ruger M77 MKII threads

Ruger M77 / Picatinny rail?

The guys in this other thread are talking about bases for the M77. How close are you on that project? I could be interested.
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Old 03-20-2011, 10:45 AM
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Re: Ruger M77 MKII threads

BigSkyGP,

IIRC, the picatinny rail mentioned on the thread is for the M77 not the M77 MKII. Someone even commented that it was designed for the pre-integral design ... but not really sure.

brainey64,

IIRC, Coyboy (Jim See) have done quite a bit of Ruger action works.
Check out the Ruger action holding fixture ...

https://www.snipershide.com/forum/ub...Number=1684901

Good luck on your new endeavor!


Ed
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  #6  
Old 03-20-2011, 02:07 PM
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Re: Ruger M77 MKII threads

1-16 tpi is correct. Not all manufacturers use this thread, but some do. The FN FAL and the Winchester Model 70 use this same thread. I read somewhere that some Sako rifles use 1-16tpi, but I am not sure which models.
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  #7  
Old 03-20-2011, 04:49 PM
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Re: Ruger M77 MKII threads

Here are the pictures of the fixture to do all my mill/drill work.








Coyboy,


when I finish the fixture for lathe work i will send pics, I really liked yours.


Also, will send pics of rails when i finish them.

Last edited by brainey64; 03-20-2011 at 07:30 PM. Reason: getting mad trying to put picture in the damn thing
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