Trouble with .308 not cycling properly

[Adamc55]

Took it apart real quick again and eased the edges on the extractor a little more where it looked like it was gouging the case. Tried 2 sanded cases and this was the result. Definitely better. First one is before the cycle

 

 

[Adamc55]

Ok, did that process again doing even more smoothing and I think I have it perfect now.

Before/after

 

 

[RiverWaterMountainSnow]

Great thread and thank you. I am having the same problem. BCG is not loading the next round. I have a STAG 22" barrel on Aero parts and Odin gas block. 

 

What was the conclusion on everything here? From what I gathered:

1) The buffer spring was  replaced with a weaker one, but that was only compensating for the undergas problem

2) the OP drilled out the barrel gas hole to .100, up from about .093.to 095 -Optimal for adjustable gas block, negates the need  for the spring replaced in item 1 above. 

3) Armalite gas tube was used which is a bit longer than a DPMS ? 

4) Ejector problems, OP polished the parts and fixed that problem

 

 

[Armed Eye Doc]

2 hours ago, RiverWaterMountainSnow said:

Great thread and thank you. I am having the same problem. BCG is not loading the next round. I have a STAG 22" barrel on Aero parts and Odin gas block. 

 

What was the conclusion on everything here? From what I gathered:

1) The buffer spring was  replaced with a weaker one, but that was only compensating for the undergas problem

2) the OP drilled out the barrel gas hole to .100, up from about .093.to 095 -Optimal for adjustable gas block, negates the need  for the spring replaced in item 1 above. 

3) Armalite gas tube was used which is a bit longer than a DPMS ? 

4) Ejector problems, OP polished the parts and fixed that problem

 

 

I will recommend that you start a thread dedicated to your rifle. It makes sure that we are only talking about your rifle. There will be questions about your rifle and its configuration.  Not all problems that seem similar have the same correction.

Please read this thread to see what kind of info will be asked.

 

https://forum.308ar.com/topic/19170-waterboarding/?tab=comments#comment-302006

[Ricanpride5]

Today was my first day shooting my AR10 build. 

It was not cycling/ejecting the rounds.

I am using

Aero Precision M5 upper Assembly

https://www.aeroprecisionusa.com/m5-18-308-cmv-complete-upper-atlas-r-one

 

Aero Precision M5 lower

https://www.aeroprecisionusa.com/m5-308-stripped-lower-receiver-anodized-black

 

Aero Precision LPK

https://www.aeroprecisionusa.com/m5-moe-lower-parts-kit

 

Nemo Arms BCG

https://nemoarms.com/product/large-frame-recoil-reduction-bolt-carrier-group-and-buffer-kit/

 

 

 

 

 

[unforgiven]

Wow $700.00 for BCG and receiver extension kit.🤑 

[98Z5V]

10 hours ago, Ricanpride5 said:

Today was my first day shooting my AR10 build. 

It was not cycling/ejecting the rounds.

I am using

Aero Precision M5 upper Assembly

https://www.aeroprecisionusa.com/m5-18-308-cmv-complete-upper-atlas-r-one

 

Aero Precision M5 lower

https://www.aeroprecisionusa.com/m5-308-stripped-lower-receiver-anodized-black

 

Aero Precision LPK

https://www.aeroprecisionusa.com/m5-moe-lower-parts-kit

 

Nemo Arms BCG

https://nemoarms.com/product/large-frame-recoil-reduction-bolt-carrier-group-and-buffer-kit/

 

 

 

 

 

This is the answer... vvv

On 8/23/2021 at 9:25 AM, Armed Eye Doc said:

I will recommend that you start a thread dedicated to your rifle. It makes sure that we are only talking about your rifle. There will be questions about your rifle and its configuration.  Not all problems that seem similar have the same correction.

Please read this thread to see what kind of info will be asked.

 

https://forum.308ar.com/topic/19170-waterboarding/?tab=comments#comment-302006