This video examines a semi-automatic .50 BMG rifle design, originally from a now-defunct company. Mark Serbu, a gun designer, critiques various aspects of the prototype, including the apparent error in the bolt design, the over-engineered test stand, questionable recoil measurement devices, and a potentially weak magazine design. He notes the challenges of creating a semi-automatic .50 BMG and seeks input from others who may have attempted or built similar firearms.
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