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AR15.COM
10/26/2007 2:07:18 PM EDT
I shot my AR last weekend.  Twice it fed a round but the round did not fire. I took all the necessary precautions, rap, tap, bang and nothing.  I ejected the rounds, fed them manually and they fired.  Also once the hammer failed to reset.  It shot great after all of that.  I put maybe another 100 rounds thru it and had no probs. Any ideas?
10/26/2007 2:50:20 PM EDT
[#1]
Bad ammo.
10/26/2007 3:05:34 PM EDT
[#2]

Quoted:
Bad ammo.

More than likely unless the primer wasn't struck on the first trigger pull.
Light primer strikes can happen sometimes.
10/26/2007 3:12:12 PM EDT
[#3]
Or the primer wasn't seated all the way, and the first strike seated the primer, the second one fired it. If it won't cycle your rifle though, might as well toss it.
10/26/2007 3:57:48 PM EDT
[#4]
this stuff was 45 grain hollow point I bought at a local gun shop.  They were out of milspec 55 grain.  That could have been the problem I guess.  Do you think the gas tube is getting filthy?  How do you clean it if that's it?  Or should I just make sure it is milspec from now on?
10/26/2007 4:31:13 PM EDT
[#5]
No telling. The 45 grain stuff might be a varmit load more aimed at bolt guns, and didn't generate the pressure/pressure curve you needed to cycle the gun. Who knows. Try it with some other ammo, and see if you have the same problem.
10/26/2007 6:00:30 PM EDT
[#6]
Don't try to clean your gas tube. Bad idea it's a self cleaning part it gets hot high pressure gas blown through it every time you shoot  it just doesn't need cleaning..........

most likely an ammo issue if you ran a 100rnds threw it with no more problems...... was the ammo reloads??

Best thing to do is shoot it some more and test it out
10/26/2007 8:20:18 PM EDT
[#7]

Quoted:
this stuff was 45 grain hollow point I bought at a local gun shop.  They were out of milspec 55 grain.  That could have been the problem I guess.  Do you think the gas tube is getting filthy?  How do you clean it if that's it?  Or should I just make sure it is milspec from now on?

Gas tubes don't need to be cleaned.
10/26/2007 8:24:47 PM EDT
[#8]
you got any of the ammo left?


if so and it's still giving you fits, send it over my way and I'll test the shit outta it and give you an aar on how it worked for me.
10/26/2007 11:28:13 PM EDT
[#9]
I am betting with it being 45 gr hp it did not generate enough pressure to fully reset the hammer.  Was this .223 Rem marked and not 5.56mm?
10/27/2007 5:04:25 AM EDT
[#10]
it was marked 223 not 5.56.  I won't use it again.  Sorry NDEN fresh out...... maybe next time. HAR HAR!!!!!
10/27/2007 7:32:33 AM EDT
[#11]
dd you recently change the buffer? My guess s that the bullet snt beng seated enough so the hammer doesnt get contact on the fring pin. Next time your out see f you can advance the bolt after you fre a round. If so you need a heavier buffer.
10/27/2007 7:47:40 AM EDT
[#12]
Did the bolt and carrier seat all the way? Did you apply some oil to the bolt? Is your bolt dirty? have you been shooting wolf ammo? Is this ammo reloads ?  check back in a few days.
10/28/2007 6:17:59 AM EDT
[#13]
No wolf ammo.  Lots of oil.  Bolt was oiled.
10/28/2007 7:17:10 AM EDT
[#14]

Quoted:
No wolf ammo.  Lots of oil.  Bolt was oiled.

Take our your recoil buffer and spring. Make sure the housing is clean, free of grit and grime.
I worked on an AR that belonged to a friend's buddy who had never cleaned or lubed the buttstock tube and recoil spring. It was gritted up to beat the band.
He had problems with the AR before that, none after.
But your problem is 99% probably the ammo. It's that other 1% that can drive you crazy.
10/28/2007 7:58:49 AM EDT
[#15]
I will get on that right now..... Thanks Dan.
10/31/2007 9:12:16 PM EDT
[#16]
Probly wasn't the ammo. WOLF ammo is the finest surplus ammo out there. Then again, even the mighty Wolf could have a bad primer or two in thier batch. Wolf is my AR's favorite along with bein my AK's favorite as well for quite a while now. Plus it shoots pretty darn consistant as well!!
11/1/2007 10:47:26 PM EDT
[#17]

Quoted:
it was marked 223 not 5.56.  I won't use it again.  Sorry NDEN fresh out...... maybe next time. HAR HAR!!!!!


Thats not a problem with an AR ,but could be a problem with a say rem 700 in .223 Rem!

looks like you worked past your problem,when you clean your weapon make sure you don't let oil get into your chamber!

Bob
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