This video from GBRS Group features insights from Dan John on achieving a 'B-' average across all physical domains for tactical readiness. The core message emphasizes the importance of being well-rounded rather than an extreme specialist, highlighting that a high average proficiency ensures operational effectiveness. The instruction is delivered with authoritative pragmatism, suitable for individuals seeking to optimize their physical conditioning for demanding roles.
This video showcases the design and construction of a custom rifling machine and the creation of rifling buttons. Mark Serbu details the process of designing a rifling button, highlighting the importance of tapering for proper function. He also demonstrates his self-designed rifling machine, capable of applying significant force, and discusses receiving custom-made rifling buttons from manufacturers.
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