No-Go on a hot AR15 - does it go out of headspace because of heat?

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Since CSSPEC's want's to continue to post on the AKFiles and claim actual shooting tests are flawed -- and he stands by the statement that shooting a gun under normal circumstances will make it go out of headspace because of the heat generated during firing (make it unsafe to shoot), we've decided to release this last video in the series proving otherwise. We recognize actually shooting the gun is likely flawed "science" and we're far better off putting metal pellets on a table and heating them up with a blow torch as he did. :)

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