SKS-D Ejection! Need some Help!

Wally

Wally

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Hey Guys,
I bought a Nork SKS-D a few years back. I made my own scope mount for it because I found the Factory mounts too high for my liking (And I saved a $hit pile of $$$!).

So I've had this thing with a scope on it for a while and I take it out shooting every once in a while. What I've found is that the thing works pretty well except some times it likes to Stove pipe. This can be quite annoying. I'm assuming whats happening is that the empties are bouncing off the scope mount (it sits about 3/16" -> 1/4" off the top of the Bolt Carrier) and getting caught as it closes.

I'm kinda bored so I pulled it out of the closet and I've been playing with it for a few mins. What I've noticed is that the Extractor and the ejection unit (Whatever the hell that part of the reciever is called that knocks the casing out on the way back) are on a 45 Degree angle to the top of the reciever. In other words it looks like it's supposed to be an Angle eject!

Didn't know this!! all I've ever really noticed about firing SKSs is that they seem to launch brass straight up and out at mach 20! I figured when I put this mount on things would sort them selves out (and they have in a way) but looking at this ejection setup I'm almost thinking things should work better than they do!

So, The Questions!

1. What can I do to make this thing eject better? If it actually ejected the brass at a 45 Deg angle I would be free and clear.

2. Is there a way I can slow down the ejection speed? I'm thinkin I could solve some problems if this thing didn't wing the brass so hard. Also, the take down latch is loose and I'm thinking it could have something to to be being pounded by the recoil!

Cheers,
Wally

http://i14.photobucket.com/albums/a318/Wallybanger/SKS5.jpg
http://i14.photobucket.com/albums/a318/Wallybanger/SKS4.jpg
http://i14.photobucket.com/albums/a318/Wallybanger/SKS3.jpg
http://i14.photobucket.com/albums/a318/Wallybanger/SKS2.jpg
http://i14.photobucket.com/albums/a318/Wallybanger/SKS1.jpg
http://i14.photobucket.com/albums/a318/Wallybanger/SKS7.jpg
http://i14.photobucket.com/albums/a318/Wallybanger/SKS6.jpg
 
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It sounds like the ejected casings are bouncing off your scope and are being caught by the returning bolt carrier. Try installing a side rail and either use one piece POSP scope or matching scope mount with your scope on it.
This configuration will allow ejected casings to just miss the scope and fly away. Another option is to install carefully angled shell deflector but they also have tendency to bounce the casings back into the receiver at times.
 
Thanks but not really the answer I was lookin for. I'm happy with my scope mount and I'm pretty sure it can be made to work.
 
The only thing I can think of would be changing either of the springs(recoil and op rod). With a stronger spring on one or both, something should happen. Try a buffer in the meantime or stack up a bunch of neoprene washers at the end of the rec cover and the recoil spring.This in effect should make the recoil spring a little stiffer. A loose pin could mean a sloppy rec.cover. ie to short. You could weld a little nodule on the tips of the cover then slowly file it down till you have a tight fit. I did this on a rec cover scope mount and now use a hammer and a drift to seat the latch pin.As far as changing the angle of eject, I wouldn't have a clue
 
Thanks emmab. We're gettin there. Still fishin for Info though :D That's the problem with the SKS forum... Doesn't see enough action.
 
Sounds like you just need a metal sheet shell deflector attached to the scope mount at an angle to bounce the fired casings out at an angle before they hit the scope and bounce back into the action.
 
Not sure that a buffer solution is the way to go. By the time its used, the bolt has already unlocked and extracted the spent shell. Same thing with the receiver dust cover catch....its not really relavent to the cycle.

First thing i would do is clean the hell out of everything......and then clean it again. That wont fix the issue (unless there is crap under the extractor) but it will rule a few things out. A change to Winchester whitebox (real brass, not washed or laquered copper) might make a difference too.

Next, I'd try a thin metal shell deflector mounted to the scope mount. See www.simonov.net for details.
 
 
Armedsask said:
I love the angle iron mount! Simple yet effective.
Click to expand...
Yes sir! Solid, Cheap, only took me about an hour and $5 to get a piece of angle and have it cut. It's an SKS, I'm not puttin a $100 scope mount on it :D
 
Thanks for posting the pics. The idea is excellent but in this configuration your extracted casings will unfortunately bounce back into your receiver.
My suggestion is to raise it a bit and weld a piece of sheet metal at 45 angle at the bottom of the mount. This will bounce the ejected casings out of the bolt carrier's way.
 
Wally said:
Here are some pics
SKS5.jpg


SKS1.jpg


SKS7.jpg


I was thinking shell deflecter too but you'll see why that isn't a real option. As I said, I don't understand why it won't fling em out the side better based on the way the ejector is set up!
Click to expand...

I would cut away the extra material you have at the right of the mount and in front. It is not doing anything useful. Maybe this may be enough for the case to clear.
 
There is a combination weaver rail/ shell deflector out there, I had an SKS I picked up at a Gunshow that had one on it. Sorry I do not know who sells them.

edited once for spelling
 
Kasat said:
Thanks for posting the pics. The idea is excellent but in this configuration your extracted casings will unfortunately bounce back into your receiver.
My suggestion is to raise it a bit and weld a piece of sheet metal at 45 angle at the bottom of the mount. This will bounce the ejected casings out of the bolt carrier's way.
Click to expand...
Yeah I've thought about that but I really don't want to have to muck with it. + that means my comb has to be that much higher in order to get a decent cheek weld.

I still can't figure out why it ejects straight up with the ejection system set up the way it is. Perhaps the extracter could be modified? If it's grabbing too much on the top of the casing that would throw it up wouldn't it?
eject.jpg

if the outlined area was removed (Or even just the lip on the underside) wouldn't it throw the brass more to the right?
Rudy H said:
I would cut away the extra material you have at the right of the mount and in front. It is not doing anything useful. Maybe this may be enough for the case to clear.
Click to expand...
You're right, that is probably a good start.
 
Here's an afterthough! Could it be the curved edge of the reciever deflecting the casings?
reciever.jpg

Thinkin about how fast that bolt is headin back and that the solid ejection component on the left of the reciever is the same distance from the bbl as the curved edge on the right of the reciever. Could it be playing pinball?
 
Remove the scope mount and try it without , if it works falwlessly then it is your scope mount obviously. You could try to reshape the ejector but since it is an integral part of the receiver you wouldn't be able to reverse your actions. I would strongly suggest (like others did) to leave the rifle alone and concentrate on scope mount modification.
 
Wally said:
Thanks but not really the answer I was lookin for. I'm happy with my scope mount and I'm pretty sure it can be made to work.
Click to expand...
Looking at your pics, I see there's a good bit of metal hanging out in front that doesn't serve any other purpose than being a shelf where the ejected brass can bounce and be impeded sufficiently to be caught by the returning carrier.
Try to chop as much as you can of that useless metal, maybe even chamfer the underside too. Then try it again.
Look at the underside and the edge of your scope mount to figure where the brass is hitting.
PP.:)
 
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