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Mosin-Nagant Factory Pressure Test Rifle

Mosin-Nagant Factory Pressure Test Rifle

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Published on November 20, 2018
Duration: 8:33

This video explores how firearm factories determined chamber pressure in the pre-electronic era using a specialized Mosin-Nagant rifle. The rifle is modified with a pressure ring around the chamber, allowing a gage to crush a calibrated copper slug to measure the force. This Mosin-Nagant serves as a clear example of this historical pressure testing apparatus and methodology.

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