Thread: AR issue
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Old October 7, 2013, 10:47 AM   #23
WhyteP38
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Join Date: September 22, 2005
Location: Behind a keyboard.
Posts: 1,565
Swampman1, since there's no dent in the primer, I'm pretty sure you have a bulged round. I'm thinking your bolt did not fully close on it, which kept the floating firing pin from an inertial hit.

I would not let the bolt try to chamber it again. You'll likely have it jammed again. Instead, lay the edge of the case against a flat surface. You should see a gap where there is a bulge.

If you insist on chamber-testing it - while observing ALL safety measures - drop the round into the chamber, pull the charging handle back, and slowly let the bolt slide forward by holding the charging handle all the way. Then, using the forward assist, see if you can close the bolt on the round. DO NOT force it! To properly close, the bolt will require just a little bit of force. It's hard to describe, but if you chamber-test a known good factory round this way, you'll get a good idea. And again, observe ALL safety measures!
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