This expert guide details the process of performing a chamber cast on a rare Galland Revolver to identify its unknown caliber. Lead Firearms Instructor Mark Novak demonstrates advanced gunsmithing techniques, including using Cerrosafe alloy for precise casting and employing specialized tools for measurement and repair. The guide covers disassembly, casting, measurement analysis, and reassembly, emphasizing the importance of objective data for reloading obsolete firearms.
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