AR question, possible problem?

Discussion in 'AR-15 Discussion' started by General_lee, May 23, 2011.

  1. General_lee

    General_lee New Member

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    I went out shooting with a couple friends on Saturday. I brought my Glock 19, Springer GI, Savage MKII and my Spike's/Stag/RRA AR.

    I only brought enough ammo to fill about 5 mags for the AR, some of it was factory Speer .223, some was .223 that I had loaded myself while I was working for the gunsmith and bought a couple boxes, and one box was Lake City 5.56 (my RRA upper is rated for 5.56), all of it was 55gr.

    I emptied a mag, then passed it to one of my friends to shoot. He shot maybe half a mag (not wanting to use up much of my ammo), put it on safety and handed it back to me. My natural reaction was to pull the charging handle and check the chamber. The round was in there very tight, almost stuck. I shoved it back in with the forward assist and emptied the rest of the mag with no problems. That was with the Speer .223.

    A little later on, after letting the AR cool for a while, my other friend loaded a mag with Lake City 5.56, shot half the mag and handed it to me. Again, I checked the chamber and the round again appeared to be stuck, but then got past the tight spot and ejected. I chambered another round and shot the rest of the mag with no problems.

    Has this happened to anyone else?
     
  2. mjkeat

    mjkeat New Member

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    Was it wet w/ oil? Tight chamber?
     

  3. General_lee

    General_lee New Member

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    I keep it well oiled, but I don't leave the chamber wet. Just a little RemOil on a patch, then a dry patch to absorb the excess oil.

    I just tried chambering and ejecting a few rounds while the gun is cold, did the same thing.

    These particular rounds are reloads and I noticed a little left over stickyness from the case lube. I suppose that could partially explain it, but it did the same thing with factory ammo also.

    I just oiled the chamber and tried it again just now, the first round ejected fine, the second was a little tighter, the third was almost stuck.:confused:
     
  4. yellowhand

    yellowhand New Member

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    I've got one of my AR's that does the same thing.
    Factory ammo is fine, reloads are tight to pull out of the chamber if not shot.
    Checked the rounds in another of my AR's, ammo that is tight/sticks in this one works fine in the other.
    Not recommending anyone do this, but this is what I did.
    After checking the rounds, all measured correct;
    Took my resizing die apart and then placed the loaded round up into the die where the shoulder just touched, backed off the round and gave the die a 1/4turn down and proceeded to touch up the shoulder of the loaded round.
    Did five that would not extract without force, (without being fired) after this, all were fine, went in fine and extracted fine without force.
    Tight chamber is all I can think of.
    Case length, COL, trimming etc all fine, so tight chamber is all I can think of.
    With my mics, everything appeared perfectly normal.
    Been reloading .223 for well over 30 years and never had this happen before.
    I plan to shoot several hundred rounds thru this one (AR) and see if it gets better with use.
     
  5. General_lee

    General_lee New Member

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    Thanks yellowhand.

    So I'm guessing now either I have bad luck with ammo, or a tight chamber.

    Maybe I just need to run more rounds through it. It's pretty much new, I've only put maybe a dozen mags through it since I've had it.
     
  6. mjkeat

    mjkeat New Member

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    New or not it shouldn't be doing this. Id bet it has nothing to do w/ ammo. Does everything move freely w/o ammo. Try cycling it w/o ammo and see if you get the same resistance.
     
  7. General_lee

    General_lee New Member

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    It works fine without ammo. No problems.

    It only sticks when there is a round in the chamber.
     
  8. mjkeat

    mjkeat New Member

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    My guess since the problem exists w/ fact ammo that the chamber is the problem.
     
  9. General_lee

    General_lee New Member

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    I'll have my gunsmith check it out then.

    Thanks fellas!
     
  10. canebrake

    canebrake New Member

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    I'd run the gun a little longer before paying a visit to a smith. (key word: paying)

    I don't like to leave a round in a warm/hot gun allowing it to cook-off.

    When at the range, I load my mags with the total # of rounds I plan on shooting to avoid my cook-off concern.

    PS Fight shooting is a complete different story!
     
  11. General_lee

    General_lee New Member

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    Good advice there, Cane!

    Back when I worked for this gunsmith, he never would charge me for anything other than parts.

    Now that I'm not currently working for him it might be different.
     
  12. mjkeat

    mjkeat New Member

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    That and I feel its good practice to keep an empty chamber while at the range if your not actively putting rounds down range. I load my mags to cap but when its time to go cold I drop the mag and eject the round in the chamber. RO's like this practice as well.
     
  13. General_lee

    General_lee New Member

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    I normally do keep an empty chamber when not actively shooting.

    My buddy that was shooting it stopped halfway through the mag and handed it to me, (not the best idea I agree) it was then that I checked the chamber.
     
    Last edited: May 24, 2011
  14. General_lee

    General_lee New Member

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    While I'm at it, let me ask y'all another question.

    Some people have been telling me to clean the inside of the gas tube with Hoppes #9 and pipe cleaners, or brake parts cleaner, while other people have been telling me not to clean the gas tube at all. What say ye?
     
  15. mjkeat

    mjkeat New Member

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    I have never cleaned the inside of a gas tube even while an 11B. I guess this doesnt mean it should be done, just saying I never have.
     
  16. IGETEVEN

    IGETEVEN New Member

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    Might not correct the problem your having, but it wouldn't hurt.
     
  17. General_lee

    General_lee New Member

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    Sorry I should have clarified. No I know it won't help with the problem, that was a completely unrelated question that I figured I'd ask in this thread before I forgot about it lol:eek:


    I also have an update on my little chambering problem.
    I was wrong about shooting 5.56 the other day, I only shot Speer and reloads, the reason I thought I shot the 5.56 was because the reloads and the 5.56 were in very similar boxes. I found the 5.56 still in the gun cabinet so I loaded up a mag with it and hand cycled the entire 20rds through with no problems! They went in and out of the chamber just as smoothly as they could.

    Maybe the other ammo wasn't loaded right, or the case not sized correctly?:confused:
     
    Last edited: May 24, 2011
  18. Quentin

    Quentin New Member

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    I can't see any reason to clean inside the gas tube either, unless a .22LR conversion has gummed the works for years. Just something a normal AR doesn't need.
     
  19. 556plinker

    556plinker New Member

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    my .02....I think it is a case sizing issue of some sort. Example: A buddy of mine was shooting a .223 contender and he just neck sized his reloads to shoot through this becasue he didn't have an AR or any other .223's. Needless to say, we built up an AR lower and topped it off with a fresh spikes tactical upper, grabbed his .223 ammo and got the very same results that you have described. The base of the brass was for his contender chamber and not the AR chamber....very sticky! Also, you could be wary of brass that has already been primed from an unknown source, just another possibility. Being a relative noobie to the AR, this is the only real malfunction I've ever had to diagnose and remedy.
     
  20. Quentin

    Quentin New Member

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    Sounds reasonable, 556plinker. I'd sure want to try ammo known to be good one more time but the General has tried factory though you never know in an individual chamber. And it's a new build so lots of ifs and maybes.

    Definitely calls for more time on the range. Which ain't all bad! :D