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Forced-Air Cooling in an Experimental Ross Machine Gun

Forced-Air Cooling in an Experimental Ross Machine Gun

66
Published on February 28, 2020
Duration: 7:50

This video examines an experimental Ross Machine Gun, a modified Mk III straight-pull bolt-action rifle. The modification includes a gas piston and trigger for automatic fire, and a unique forced-air cooling system. The cooling system features a one-way ratchet mechanism that spins a fan when the bolt cycles, directing air through a barrel shroud. This innovation was likely developed around 1915-1916 for potential military contracts that never materialized. The firearm was filmed with the cooperation of the Canadian War Museum.

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