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 Receiver question. Different machining from 2 diff ruskies?

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SilverTip
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PostSubject: Receiver question. Different machining from 2 diff ruskies?    Mon Apr 08, 2013 1:39 am

Ok, I was looking down inside 2 different Mosin receivers I have, and I noticed ahead (forward) of the locking lugs, in one receiver only, there is a half round segment of metal not machined out. Its hard to explain in words, so I threw together a quick vid. The receiver on the left just shows the locking lugs (green arrows) and the lug ramps (dark green arrows). The one on the right shows the lugs (green arrows) and the extra round segment of metal (red arrows). Whats that for? The bolt face passes through it when the bolt is fully closed.

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The picture I uploaded is much bigger, but photosuckit shrunk it down I guess. If you click (options) then (download) you'll get a bigger picture you can zoom.
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PostSubject: Re: Receiver question. Different machining from 2 diff ruskies?    Tue Apr 09, 2013 8:25 am

Semi-educated guess: the one with the extra metal not removed was later/wartime production, and the extra machining step (to remove the half circle) had been deleted in order to increase production output.
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PostSubject: Re: Receiver question. Different machining from 2 diff ruskies?    Tue Apr 09, 2013 10:05 pm

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PostSubject: Re: Receiver question. Different machining from 2 diff ruskies?    Wed Apr 10, 2013 1:20 am

Hey, right on Mo! Smile Thanks. Looks like you were right Zeiss.
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PostSubject: Re: Receiver question. Different machining from 2 diff ruskies?    

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Receiver question. Different machining from 2 diff ruskies?
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