Mid-length ejection angle

[Wake27]

Made statements meaning that on their Criterion Core product page, they list what A5 combo works best for that barrel IIRC. It wasn't at all unfavorable, but indicated that they had conducted tested to find what worked best with at least the Core line of barrels.

In the meantime, I'd try a stock rifle spring if you have one and want to continue troubleshooting. Honestly not sure what it would indicate given all of the other data, but I've had problems with the green spring on conservatively gassed setups.

[AndyLate]

We complain about over gassed guns, we complain about correctly gassed guns not running in every configuration we try. I have the luck of the Irish and my ARs, be they factory or mix-master, pretty much just work. Heck, my rifle gassed 18" gun runs fine with an A5A2 buffer and a standard rifle spring.

I am glad to hear Criterion took care of you, assuming the gun runs for you, and good on them for providing a known good bolt tested in your barrel.

Good luck!

Andy

P.S. Strongly suggest you read what MistWolf posted again.

[Wow]

Criterion, not Centurion.

[fedupflyer]

Made statements meaning that on their Criterion Core product page, they list what A5 combo works best for that barrel IIRC. It wasn't at all unfavorable, but indicated that they had conducted tested to find what worked best with at least the Core line of barrels.

Where is that on the Criterion web site? I have looked but I do not see it.

[Wake27]

Where is that on the Criterion web site? I have looked but I do not see it.

You’re right, I know I saw it somewhere, maybe someone posted an email convo with them.


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[Disciple]

Gas port size does NOT determine which buffer is to be used. Using an adjustable gas block, I performed experiments with Carbine, H, H2 and A5H2 buffers. Each buffer required the the same gas block setting to achieve full lock back, both unsuppressed and unsuppressed, using standard 5.56 ammo.

Were you using the LMT Enhanced carrier in these tests?

[MistWolf]

Were you using the LMT Enhanced carrier in these tests?

I tested the LMT and standard carrier. The standard carrier required one click more gas than the LMT.