Non-Usable Ammo For 7.62x39mm XCR??
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Thread: Non-Usable Ammo For 7.62x39mm XCR??

  1. #1
    Carbineman ZackAttack's Avatar
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    Non-Usable Ammo For 7.62x39mm XCR??

    Today I took my new XCR to the range to fire it for the first time and zero the optics, but quickly became disappointed. I have several AR's that I've built and have used just about every type of ammunition through with very few problems if any. Being that the XCR is of better design I didn't expect any problems to arise but was not able to shoot one round today at the range. The only ammo available when I picked my gun up was Wolf 122gr FMJ in the black box and picked up 500 rounds. This ammo absolutely would not work in the XCR. When chambering a round the bolt will feed the ammo forward but the bolt face and extractor will NOT slip over the rim of the cartridge, leaving the bolt sitting behind the round and not fully in battery. I'd remove the Mag, pull the charging handle back and let it's full force go forward and it would still not seat. This leaves the round stuck and unable to extract. I had to use a rod to push the round out while the action was back.

    I tried a good amount of times using fresh rounds and the exact same problem happened every time
    I disassembled the rifle to make sure there was no problem internally and everything was fine. Has anyone else had this problem with this ammo or any others?? I have not read anywhere that WOLF could not be used in the XCR and since it is a very common and popular ammo now I never expected to not work in a XCR if it has worked in all my other weapons flawlessly. Again, I have not found any info from anywhere else about WOLF not working in the XCR and this was the only ammo available. Thanks for reading

  2. #2
    Expert tacweapon's Avatar
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    Re: Non-Usable Ammo For 7.62x39mm XCR??

    I have not fired the 7.62x39 XCR, but my 5.56 XCR has had around 8000 rounds of Wolf and Silver Bear without issue. It almost sounds like the ammo might be out of spec ... just a guess
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    Carbineman ZackAttack's Avatar
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    Re: Non-Usable Ammo For 7.62x39mm XCR??

    I took that into thought as well as a possible cause. Being that the brand is so Widely used if the ammo was out of spec then there would have to be many other gun owners reporting similar problems. I'm still looking....but have not came across any yet, so it seems very odd. My only other speculation is possibly the bolt assembly is out of spec. I find this very odd as I have about a thousand rounds of different WOLF ammunition in 5.56 and they all feed and extract with no problem. Would seem odd for that only the 7.62 would be out of spec. Soon as I can find other brand of ammo I'll try again.

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    XCR Guru gunner69's Avatar
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    Re: Non-Usable Ammo For 7.62x39mm XCR??

    Note that the BREAKIN WARNING states no SHIT AMMO. Wolf is SHIT> Break in with good ammo = Plus. Break in with Shit = SHIT!!!
    Fio para bellator - be the Prepared Warrior

  6. #5
    XCR Guru aziator's Avatar
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    Re: Non-Usable Ammo For 7.62x39mm XCR??

    Take the bolt out of the gun and try to fit it by hand onto the base of a round. There may be the off chance that you have a 5.56 bolt. Is the round going into the chamber OK? i know this sounds stupid but I would make srue that the gun is a 7.62x39 gun. There may have been a mixup and you received a 5.56 part in it.

    I don't shoot wolf ammo but i know the XCR will take it just fine.
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  7. #6
    Carbineman ZackAttack's Avatar
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    Re: Non-Usable Ammo For 7.62x39mm XCR??

    Quote Originally Posted by gunner69 View Post
    Note that the BREAKIN WARNING states no SHIT AMMO. Wolf is SHIT> Break in with good ammo = Plus. Break in with Shit = SHIT!!!
    Gunner, as I stated TWICE...WOLF was the only available ammo not only at the gun store but at the range. Also, opinions are just that...opinions. And although you may not like WOLF ammo I've used it in at least 6 different weapons with no problems and very good performance as is noted by many other users of this ammo. It is not my first choice, I usually buy American Eagle, Black Hills, MagTech etc...but they sell out very fast due to demand. WOLF is by no means SHIT ammo as you stated...I've came across much worse. It fires every time, it's moderately accurate and produces good muzzle velocities.

    Aziator, you mentioned some good points. Yes, I did take the bolt out and and tried to fit a round in it by hand but it seems the rim thickness of the WOLF is too thick for the extractor to make it over. After several tries with one round I took it out and examined it and there was a indentation on the bottom of the round where you can see the extractor impacted it hard enough to dent a STEEL case...but not slip over it. My only other thought was the same as yours...possibly a 5.56 bolt got put in there so I'm about to take it apart now and see. Now IF that is the case...I'm going to be quite questionable of the staff at R.A. if they put a 5.56 bolt in a 7.62 gun. Thanks for the responses from those of you that replied.

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    XCR Guru aziator's Avatar
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    Re: Non-Usable Ammo For 7.62x39mm XCR??

    Quote Originally Posted by ZackAttack View Post
    I'm going to be quite questionable of the staff at R.A. if they put a 5.56 bolt in a 7.62 gun.
    There is no reason to be questionable of the RA guys. The bolts are identical except for the surface face where the base of the cartridge fits into. It would be very easy to make that mistake.

    I have heard of Chevy trucks leaving the factory with GMC emblems and bumpers. Mistakes happen. If this is the case you will be taken care of.No reason to start questioning people.
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    Carbineman ZackAttack's Avatar
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    Re: Non-Usable Ammo For 7.62x39mm XCR??

    And just like Truck companies, Gun companies can make mistakes too. I don't ever point fingers or assume, I'll check every possibility first and I don't question RA's ability. Being that I've spoken with other 7.62x39mm XCR owners who have used WOLF with no problem it takes the ammunition out of the equation basically. One XCR owner has ONLY fired WOLF from his gun in 7.62 because he got a great deal on a 1000 rounds. Besides small break in problems, WOLF worked for him no problem. The bolt is definitely 7.62, I managed to get one round seated in the bolt by hand of Golden Tiger ammo. When inspecting the bolt closer it looks as if the Extractor is too far into the bolt face. When charged the extractor rams into the bottom of the cartridge but by no means comes close to making it around the rim. I've read XCR's have strong extractors, but when manually pushing against the extractor by hand it seems almost excessively stiff. It takes a great deal of force to push it back. If any other 7.62x39 owners have a picture of the bolt face up close can you please send a picture so I can compare with mine? I'd greatly appreciate it. I'm dying to shoot this gun and so far two different ammo's absolutely will not seat even after repeated efforts.

  10. #9
    XCR Guru ny32182's Avatar
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    Re: Non-Usable Ammo For 7.62x39mm XCR??

    So you have tried to chamber the Golden Tiger as well and had the same issue, is that correct?

    My last question would be, do these same batches of ammo shoot in a known good 7.62x39 rifle? I don't think you can fully eliminate the ammo as a possible problem quite yet, but close, if you've tried two kinds.

    I would:

    1) Make sure the rounds will seat on the bolt, as it appears you have already done?
    2) Make sure they will drop into the chamber by hand. You probably actually will not be able to see if they are really fully into the chamber by looking at it, but this should reveal any major obstruction, such as a 5.56 chamber. How far out of battery is the rifle when the chambering stroke is halted? Can you still see brass, or is it nearly complete?

    I have never removed my extractor, but I think you can do it if you want to. If the above checks don't yield anything obvious, I would call RA and get some suggestions. Was this rifle shipped as a complete 7.62x39? If so, they should have test fired it at the factory.

  11. #10
    XCR Guru ny32182's Avatar
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    Re: Non-Usable Ammo For 7.62x39mm XCR??

    Also, I don't know if this is possible or not, but if the mag is bad, maybe that is gumming up the works somehow. Is the cartridge making it all the way out of the mag? Is the carrier binding on it at all? etc.

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