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What's the horizontal stock screw for?

vepr super stock screw

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#1 SpetsnazGRU

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Posted 13 May 2013 - 08:40 PM

Hey, guys. There's a pretty big old screw going all the way through the stock (from right to left), right under the rear sight block. Anyone know what it's for? Mine is fairly loose. Do I need to have it tight? Thanks.



#2 zagumennyyilya

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Posted 13 May 2013 - 09:45 PM

I have no idea, but I always wondered what it was for, mosin nagants have something similar and that is for the recoil lug but who knows.

#3 Dracozny

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Posted 13 May 2013 - 10:03 PM

that's basically what it looks like to me a crossbolt for a recoil lug.



#4 SpetsnazGRU

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Posted 14 May 2013 - 03:11 PM

that's basically what it looks like to me a crossbolt for a recoil lug.

 

Any idea if needs to be tight? Like I said, the screw on mine was fairly loose. 



#5 Dracozny

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Posted 14 May 2013 - 07:38 PM

Yea I would snug it up, no sense in letting it fall out. the flat part of the bolt should be flush against the receiver. 



#6 zagumennyyilya

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Posted 14 May 2013 - 08:55 PM

i use very small needle nose pliers or snap-ring pliers to tighten the nut with the two holes, the cross bar is  has a flat side and the only way my barreled action would fit properly is if the flat side is towards the receiver, so if you spin the side slot, it will rotate the bar and move the action, thats why is tighten the nut with the two holes and leave the other side to be flat towards receiver.



#7 Dracozny

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Posted 14 May 2013 - 09:07 PM

i use very small needle nose pliers or snap-ring pliers to tighten the nut with the two holes, the cross bar is  has a flat side and the only way my barreled action would fit properly is if the flat side is towards the receiver, so if you spin the side slot, it will rotate the bar and move the action, thats why is tighten the nut with the two holes and leave the other side to be flat towards receiver.

ring pliers work perfectly for this.



#8 SpetsnazGRU

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Posted 15 May 2013 - 05:32 PM

Hmm... I held the nut with the two holes in place and tightened the nut with with a slot using a big flat screw driver, it went quite a bit inside the stock before it got tight. Am I doing it wrong? I've never taken off the stock and have no idea idea how this cross-bolt interacts with the action inside there.



#9 Dracozny

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Posted 15 May 2013 - 07:06 PM

if your turning the slotted side your turning the hole bolt. so the flat side of the bolt could be facing any random direction. if the action is in the stock when your doing this then the stock is extremely sloppy as you should not be able to turn it with any amount of ease. the nut with two holes is the only part that should be able to be tightened with the action in place.

so based on that you may need to bed the action.



#10 SpetsnazGRU

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Posted 17 May 2013 - 02:56 PM

if your turning the slotted side your turning the hole bolt. so the flat side of the bolt could be facing any random direction. if the action is in the stock when your doing this then the stock is extremely sloppy as you should not be able to turn it with any amount of ease. the nut with two holes is the only part that should be able to be tightened with the action in place.

so based on that you may need to bed the action.

 

Thanks. I am still having difficulty picturing how all this fits. I think that I need to remove the stock this weekend... see how everything works. 



#11 Dracozny

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Posted 17 May 2013 - 03:26 PM

here is some pics, since my rifle has been sitting dismantled on my desk for months waiting for that RSA Trigger group..

 

so here is a pic of me turning the slotted side

from normal

https://dl.dropboxus...17 13.18.45.jpg

to wrong

https://dl.dropboxus...17 13.18.32.jpg

 

 

here is the position it should be in

https://dl.dropboxus...17 13.17.16.jpg

 

and in relation to the action

https://dl.dropboxus...17 13.21.51.jpg

 

I will add that I am still able to turn mine a smidgen, maybe less than a quarter of a turn, in theory it should not budge. 


Edited by Dracozny, 17 May 2013 - 03:30 PM.


#12 SpetsnazGRU

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Posted 17 May 2013 - 05:53 PM

here is some pics, since my rifle has been sitting dismantled on my desk for months waiting for that RSA Trigger group..

 

so here is a pic of me turning the slotted side

from normal

https://dl.dropboxus...17 13.18.45.jpg

to wrong

https://dl.dropboxus...17 13.18.32.jpg

 

 

here is the position it should be in

https://dl.dropboxus...17 13.17.16.jpg

 

and in relation to the action

https://dl.dropboxus...17 13.21.51.jpg

 

I will add that I am still able to turn mine a smidgen, maybe less than a quarter of a turn, in theory it should not budge. 

 

 

Thanks again. I probably scratched up the action, dug into the wood and made my stock loose, trying to "tighten it" a few turns. Me and my freakishly strong hands, combined with impatience, and perfectionism. Should have gotten all the answers BEFORE messing with the "mysterious screw". :(



#13 zagumennyyilya

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Posted 17 May 2013 - 07:40 PM

To be honest, that is a very lame recoil lug screw setup,  when the rifle recoils, the action is what will be pushing rearward, so during firing, the action will be pulling away from the stock horizontally,  on the mosin nagant, there is a lug off the barrel that rests in front of the screw not behind, so i really don't get how the screw can even work as a recoil lug screw.



#14 Dracozny

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Posted 17 May 2013 - 08:43 PM

To be honest, that is a very lame recoil lug screw setup,  when the rifle recoils, the action is what will be pushing rearward, so during firing, the action will be pulling away from the stock horizontally,  on the mosin nagant, there is a lug off the barrel that rests in front of the screw not behind, so i really don't get how the screw can even work as a recoil lug screw.

perhaps its sole purpose is to give added strength to the stock and not for recoil.. strange part is its nearly identical to a normal cross-bolt for recoil, but I agree with you on the placement being a bit peculiar. 






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