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Picatinny Rail By Norman E. Johnson

 
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  #8  
Old 08-05-2011, 11:28 AM
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Re: Picatinny Rail By Norman E. Johnson

Here is the technical explanation:
GunTech : Picatinny Rails, Weaver Rails, What

But the take home message is that the Weaver rail looks cheaper.



I welded onto the rear of this receiver and drilled and tapped and put Aluminum on the front.
Then I cut a Picatinny rail to be parallel with the bolt bore.
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  #9  
Old 08-05-2011, 04:28 PM
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Re: Picatinny Rail By Norman E. Johnson

Aluminum rails always look cheap until they are cleaned up a bit. Have you found a good coating for Aluminum other than annodizing, one that will stick and not build up to change dimensions like ceramakote does?
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  #10  
Old 08-05-2011, 04:50 PM
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Re: Picatinny Rail By Norman E. Johnson

That is a Mosin Nagant receiver.
The $30 ATI scope mount for that in 2009 was anodized and the holes and countersinks did not meet 10-32 cap screw specifications, due, I think, to anodize build up.
The 2011 ATI mount is a much thinner flatter looking coating that meets spec.

The mounts in the picture that I made took too many man hours, and I have not worked on it in a while. I will probably put a VZ59 barrel on it next month, and then maybe some Aluminum black from brownells.
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