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Posted: 9/21/2011 3:45:41 PM EST
[Last Edit: 9/22/2011 5:43:29 AM EST by Zhukov]
My AR15 stopped chambering a new round after first shot was working no issues until last weekend at range. tried mag in other my other AR15 and no issues. It ejects the fired round and bolt goes home but no round any ideas?

<Corrected title - Z>
Link Posted: 9/21/2011 3:52:33 PM EST
[Last Edit: 9/21/2011 6:09:38 PM EST by WI57]
ETA- I read too fast, I thought you meant you couldn't get the bolt to close on a round...

Probably a short stroking issue.
Link Posted: 9/21/2011 3:54:14 PM EST
Do you have a magazine in it loaded with cartridges?
Link Posted: 9/21/2011 3:57:03 PM EST
Short stroking for sure.

Did you change the ammo you were using before?

Link Posted: 9/21/2011 4:01:23 PM EST
Sounds like short stroking. Will it chamber with the charging handle? If not break it down and look at the chamber bore closely.
Link Posted: 9/21/2011 4:51:46 PM EST
[Last Edit: 9/21/2011 4:51:53 PM EST by therealcarbine15]
Short stroke. Did you accidentally install a rifle buffer spring in place of a carbine buffer spring?
Link Posted: 9/21/2011 6:53:47 PM EST
Originally Posted By therealcarbine15:
Short stroke. Did you accidentally install a rifle buffer spring in place of a carbine buffer spring?


Sounds like the above...Did you build it yourself?
Link Posted: 9/21/2011 6:56:38 PM EST
Check gas rings on the bolt inside the bolt carrier. They will look like 3 little rings of shinny metal.

Before taking it apart a good test is pulling the bolt out as far as it will go and seeing if it will stay in place. Place it on a flat surface with the bolt facing down. The weight of the carrier should not let the carrier slide down.
Link Posted: 9/22/2011 4:56:28 AM EST
Originally Posted By LanceDeMarco:
My AR15 stopped chambering a new round after first shot was working no issues until last weekend at range. tried mag in other my other AR15 and no issues. It ejects the fired round and bolt goes home but no round any ideas?


Brand of ammo?
Link Posted: 9/22/2011 5:43:41 AM EST
Link Posted: 9/22/2011 5:43:54 AM EST
[Last Edit: 9/22/2011 5:43:54 AM EST by Zhukov]
Topic Moved
Link Posted: 9/22/2011 8:23:22 AM EST
[Last Edit: 9/22/2011 8:24:18 AM EST by Dano523]
Link Posted: 9/22/2011 10:42:13 AM EST
How old is the rifle, and has anything been changed as far as rifle components or ammo?

Description of rifle configuration (and pics if possible) may also be a help.
Link Posted: 9/23/2011 11:40:57 AM EST
Yes
Link Posted: 9/23/2011 11:41:49 AM EST
no same spring
Link Posted: 9/23/2011 11:44:59 AM EST
Yes and used the mag in another AR15 and it works
Link Posted: 9/23/2011 1:20:44 PM EST
If your going to reply to particular questions used the quote button not the reply button. It will make it for us to correlate the answers to the questions.
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