 B2k4E 
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Joined: Mar 2011  TX, USA
 Posts: 66 Feedback: 100% (8) |
Posted: 6/8/2012 9:06:12 PM
THE IMAGE ABOVE IS A PAID ADVERTISEMENT  So out at the range about once or twice during a magazine I get this:  And it does this to the casings:   So, how do I make this:  Though I read on another forum that it could be the extractor. I haven't taken the extractor apart; and, when I sprayed CLP down the bolt, thru the firing pin that red primer stuff came out.  Thanks for help in advance! If you need anymore pics just ask and I'll take them. |
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Gunplumber
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Joined: Jul 2002 AZ, USA
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Posted: 6/9/2012 12:24:12 AM
several possibilities but I'd replace the poor-quality mag first.
Ejector not long enough. It should just kiss the slot in the bolt. Undergassed - not reciprocating with enough force to kick out the round. improper headspace or chamber dimension - too much friction on extraction causing same symptom as undergassed. Look under the handguards for arsenal marks and numbers - if they are lacking, it is likely a CAI US barrel, which may have an improperly machined chamber. If a factory barrel, check headpace and see if the cartridge drops in so that the front of the rim is in line with the bottom (front edge) of the extractor clearance. |
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radkoch
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Joined: Jun 2005 TX, USA
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Posted: 6/9/2012 5:27:05 AM
As Gunplumber said above. I'd try a few Warsaw pact mags first and check the gasblock hole to make sure it isn't a little dirty.
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Posted: 6/9/2012 9:45:35 PM
I will try out new mags next week when I go back to my hometown for my birthday. I have a Bulgy mag that I found out in a field, no rust, had 30 rounds in it...
  But for now I have more pics and a new question. Could it be a bad extractor? This gun is pretty used; and since it's pretty used, could the headspacing be too large and cause rounds to expand too large? I tried pushing an unfired round through there and it seats in fully with the round in the chamber. But, if I put a fired case in there then it sticks out too much and I have to force the action open, ejecting the case. Unfired round:  Fired casing:  When the bolt tries to close on fired case:  Also, more pics, if they help:   Notice the bumps on the front trunnion:  Also, is this a problem?  The barrel can't be too worn out, this is what it did at 40 yards:  |
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Gunplumber
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Joined: Jul 2002 AZ, USA
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Posted: 6/10/2012 9:46:07 AM
need a better picture, but it appears your chamber is cut incorrectly - did you check for the writing on the barrel?
Receiver at rear trunion - you can squeeze in a vise or remove and redo the rivets but it isn't going to hurt anything. |
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Posted: 6/10/2012 7:38:58 PM
[Last Edit: 6/10/2012 7:50:47 PM by B2k4E]
Originally Posted By Gunplumber: There is no writing on the barrel other than "C.A.I. GEORGIA. VT." just forward of the gas block. I thought the GP 1975's had new barrels from Green Mtn. tho?need a better picture, but it appears your chamber is cut incorrectly - did you check for the writing on the barrel? Receiver at rear trunion - you can squeeze in a vise or remove and redo the rivets but it isn't going to hurt anything. I haven't been able to try Com-bloc steel magazines in it yet tho. A lot of FTE issues with this particular rifle seem to be resolved with throwing out the Crapco mags it comes with and using steel surp mags. How hard is it to replace the barrel? |
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35mm_Shooter
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Joined: Apr 2011 USA
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Posted: 6/10/2012 7:56:41 PM
I will bet it's the ejector. It's riding too low so it only hits the very edge of the rim. Hand cycle it and see if it's not ejecting the rounds even though you pull all the way back.
If that's the case, the fix is very simple and takes 60 seconds. Take a small crescent wrench and bend the ejector upwards. Easy does it. Hand cycle to make sure the ejector is making good contact with the rim. |
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Posted: 6/10/2012 8:01:53 PM
[Last Edit: 6/10/2012 8:03:44 PM by B2k4E]
Originally Posted By 35mm_Shooter: I will bet it's the ejector. It's riding too low so it only hits the very edge of the rim. Hand cycle it and see if it's not ejecting the rounds even though you pull all the way back. If that's the case, the fix is very simple and takes 60 seconds. Take a small crescent wrench and bend the ejector upwards. Easy does it. Hand cycle to make sure the ejector is making good contact with the rim. I've kinda suspected that too. When I stuck the empty case in the chamber and pulled back it didn't eject far. About 6 inches away from my right foot. (I'm a right handed shooter.) If using combloc mags doesn't help I might try this. Which part to I bent upwards? The large "ear" part or all of it? |
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35mm_Shooter
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Posted: 6/10/2012 8:07:50 PM
Originally Posted By B2k4E:
Originally Posted By 35mm_Shooter:
I will bet it's the ejector. It's riding too low so it only hits the very edge of the rim. Hand cycle it and see if it's not ejecting the rounds even though you pull all the way back. If that's the case, the fix is very simple and takes 60 seconds. Take a small crescent wrench and bend the ejector upwards. Easy does it. Hand cycle to make sure the ejector is making good contact with the rim. I've kinda suspected that too. When I stuck the empty case in the chamber and pulled back it didn't eject far. About 6 inches away from my right foot. (I'm a right handed shooter.) If using combloc mags doesn't help I might try this. Which part to I bent upwards? The large "ear" part or all of it? I doubt the mags will have any effect. You only need to bend the ear. I would say try to bend it now, then hand cycle and see how far it ejects. |
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Posted: 6/10/2012 8:24:14 PM
Originally Posted By 35mm_Shooter: Might have to try it tonight. Although I live in an Apartment so I'm kinda paranoid of cycling live rounds... Originally Posted By B2k4E: Originally Posted By 35mm_Shooter: I will bet it's the ejector. It's riding too low so it only hits the very edge of the rim. Hand cycle it and see if it's not ejecting the rounds even though you pull all the way back. If that's the case, the fix is very simple and takes 60 seconds. Take a small crescent wrench and bend the ejector upwards. Easy does it. Hand cycle to make sure the ejector is making good contact with the rim. I've kinda suspected that too. When I stuck the empty case in the chamber and pulled back it didn't eject far. About 6 inches away from my right foot. (I'm a right handed shooter.) If using combloc mags doesn't help I might try this. Which part to I bent upwards? The large "ear" part or all of it? I doubt the mags will have any effect. You only need to bend the ear. I would say try to bend it now, then hand cycle and see how far it ejects.  |
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jdoming728
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Posted: 6/10/2012 9:06:38 PM
Buy snap caps or do what I do I have a bullet puller and one complete mag with dummy rounds to test my builds, of coarse painted a different color as not to evere make a mistake and the cap fired already...I also superglue the round to the shell...I mag of 30....
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Posted: 6/10/2012 10:23:56 PM
Well, it could be the ejector. I cycled the bolt about 10 or 20 times and had a couple of weak ones. One round I cycled didn't leave the rifle and another just landed a few inches beside it. Here's a couple pics I took, see what yall think of em.
 I noticed there's some marks on the receiver that look like shell casings hitting the side. Kinda hard to see cause my HTC isn't so good at close-ups with flash on.  Yall have been great with the advice so far! Thanks |
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35mm_Shooter
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Posted: 6/10/2012 10:27:15 PM
Originally Posted By B2k4E:
Well, it could be the ejector. I cycled the bolt about 10 or 20 times and had a couple of weak ones. One round I cycled didn't leave the rifle and another just landed a few inches beside it. Here's a couple pics I took, see what yall think of em. http://i1201.photobucket.com/albums/bb359/B2k4E/Stuff/IMAG0494.jpg I noticed there's some marks on the receiver that look like shell casings hitting the side. Kinda hard to see cause my HTC isn't so good at close-ups with flash on. http://i1201.photobucket.com/albums/bb359/B2k4E/Stuff/IMAG0495-1.jpg Yall have been great with the advice so far! Thanks Yep, that's way too low. The reason sometimes it doesn't happen is because being an AK, there is a lot of play with the bolt. If it rides low the ejector will make good contact. If it rides high it won't. Bend the ejector up and I guarantee you won't have that problem anymore. |
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Posted: 7/15/2012 9:28:53 AM
Did the adjutments fix your issues? I have an AK Concepts pistol that does about the same thing. It tries to load a second round, but doesn't fully eject the first round.
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Posted: 7/26/2012 6:14:31 AM
Sorry people, forgot all about this. Yes, bending the ejector up solved this problem
 Thanks to all who contributed! |
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