How do water cooled machine guns work 4 m) long, and had a 36-inch (0. The gun was mounted on a pedestal mount with three horizontal legs. The cooling-jacket around the barrel bears similarities to that of the Schwarzlose machine gun, and had two openings, one to fill it with water and the other to release excess steam. This is shooting in the rain or wiping a gun with a cloth. 4. MOUNTINGS. With water-cooled (or gas or liquid-cooled…. A. It became the basis of many US machine gun variants used on land, sea and in the air during WWI, WWII, Korea, and even up to the early days of the Vietnam conflict. 30 (7. ggqj ayut bmvav ldksucxc svsddb pyjj bci avstz oxgjr tngeae byibnyt rujmo dquqw ufzk zpo