This video details the test firing of a fire-damaged Palmetto State Armory AR-15. The firearm was secured in a Savage Range System test trap using a portable armors vise. A trigger pull device, constructed from a shotgun cleaning rod, was employed for remote operation. The test utilized Winchester 193 ammunition to assess the integrity of the barrel and bolt after potential heat damage, with the receivers being deemed less critical for catastrophic failure.
This guide details a safe method for determining the maximum powder charge for a specific rifle and component combination, as demonstrated by Aaron Davidson of Gunwerks. It emphasizes monitoring brass flow around the ejector as a key indicator of excessive pressure. By incrementally increasing powder charges and inspecting fired brass, shooters can identify safe load limits, backing off from the first sign of pressure to ensure safe operation.
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