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6/21/2017 8:25:40 PM
Posted: 5/22/2001 6:19:23 PM EDT
I took my AR 10 to the range today for the first time and about half of the rounds wouldn't eject. When I looked at the empties the rim at the base was almost chewed off. This happened on several different brands of cases so I thought it had to do with my extractor spring. Am I close?? Thanks
Link Posted: 5/22/2001 6:40:09 PM EDT
Sounds like a rough or dirty chamber, if the exrtactor is coming back with brass in it. Does this happen with all brands of ammo or just one?
Link Posted: 5/22/2001 6:40:30 PM EDT
I think another member had the same problem. He polished the chamber but I believe the board consensus was to send it back to Armalite for warranty repair.
Link Posted: 5/22/2001 7:39:20 PM EDT
Yes I used several brands of brass(4) The empties just remained in the chamber. The chamber wasn't dirty. The rifle was used but in 99% condition when I purchased it. I've owned ARs since 82 but I've never had this happen before.
Link Posted: 5/22/2001 9:26:07 PM EDT
[Last Edit: 5/22/2001 9:27:08 PM EDT by prk]
I'd call Bushmaster, also check their web site for tech advice & FAQ's I don't know a lot about AR-10's, but in AR15's...... In-spec headspace is super-important. Is it possible yours is out of whack? Maybe it's time to have a gunsmith look at it. Are you sure the bolt is closing all the way? [b]"used several brands of brass(4)"[/b] are these reloads? too hot? I would also wonder about the gas tube & key. Whatever the cause, after several shots like this, I would also want to make sure the carrier and all parts are in new condition & if in doubt, get them replaced. If you don't have go, no-go, & field guages, take it to a gunsmith who does. The extractor spring is only supposed to go in one way. Did you examine the brass for other signs of trouble (bulges, primer issues etc)? [red]PRK
Link Posted: 5/23/2001 7:06:05 AM EDT
Send it back to Armalite for warranty repair.
Link Posted: 5/23/2001 2:58:53 PM EDT
If it is leaving the case in the chamber, it is most likely due to a rough chamber or some reamer chatter when they chambered it. Polishing the chamber should cure the problem.
Link Posted: 5/23/2001 5:33:33 PM EDT
I have the same problem after 40 rds or so. After I clean my lover she fires fine until about 40 more. I've cleaned and polished the chamber until I am ill. I have replaced the extractor and spring also but I still get the occasional misfeed. I checked my headspace and it was within tolerance. I noticed that some mags were more prone to the misfeed than others but that could easily be conicedence. My latest effort was to realign the rings on the bolt because I noticed the gaps were alingned. I have tried everything I heard here previously except replacing the gas tube. If you find something that works for you then please post here so I can try it.
Link Posted: 5/23/2001 7:59:19 PM EDT
Originally Posted By DeerSlayer: I have the same problem after 40 rds or so. After I clean my lover she fires fine until about 40 more. I've cleaned and polished the chamber until I am ill. I have replaced the extractor and spring also but I still get the occasional misfeed. I checked my headspace and it was within tolerance. I noticed that some mags were more prone to the misfeed than others but that could easily be conicedence. My latest effort was to realign the rings on the bolt because I noticed the gaps were alingned. I have tried everything I heard here previously except replacing the gas tube. If you find something that works for you then please post here so I can try it.
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Ok now I'm really discouraged. I've wanted a 10 T for 3 years. I can't believe you still have your rifle. If I don't get it functioning reliably I won't keep it. The mags were 10 rd Armalite mags. I really think it's the extractor. I've contacted Armalite and will post their reply. Thanks for your post.
Link Posted: 5/23/2001 8:10:33 PM EDT
Send it back to Armalite. I tried everything to fix mine and nothing worked. I sent it to them, got it back about three weeks later, no problems since.
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