Assertion: water cooled machine gun | /r/HasProperty | adopted as the m1917 browning machine gun
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text: In 1917, prior to America's entry to the war, John Browning personally brought to Washington, D.C. two types of automatic weapons for the purposes of demonstration: a water-cooled machine gun (later adopted as the M1917 Browning machine gun) and a shoulder-fired automatic rifle known then as the Browning Machine Rifle or BMR, both chambered for the standard US .30-06 Springfield cartridge.