12-02-2018, 10:21 PM
VASCAR2 Wrote:I think your bolt face depth, bolt overall length and firing pin are gtg. Only other thing is if you had excessive head space but I would be surprised if that was the issue. You could measure your spent brass to see if there is excessive growth after being fired this barrel. I suspect you have an issue with the Rise Arm. trigger. Have you got access to a different lower with different type of trigger to test the upper.
Didn't measure, but fired brass looked fine. I did swap out the trigger with one that was proven to work in another lower. The same brand.
Now that I've cleaned the bcg thoroughly, we'll give it another go. I'll let you know.