Was there a Gatling machine gun that was really used in World War II? What models are there?

1862 gatling Gatling machine gun has two different structures. The first type adopts an independent steel chamber (the chamber is separated from the cylinder), with a closed tail and an impact fire cap. The shooter drives the barrels evenly arranged along the circumference to rotate by shaking the crank, and the chamber full of ammunition enters the locking groove at the back of each barrel from the magazine. When the barrel turns to a certain position, the firing pin fires ammunition. When the barrel is turned to another position, the fired gun chamber exits the machine gun. The gun bore can be reused, and six rounds of ammunition can be loaded, fired and ejected with one rotation of the barrel, and the firing rate reaches 200 rounds per minute, but there are some shortcomings such as powder gas leakage. In order to solve this problem, gatling used the independent metal shell ammunition developed at that time. This ammunition structure was later adopted by all the designers of machine guns.

Another structure uses 0.58 inch copper shell side-fired ammunition. In order to overcome the problem of how to make the independent bore coaxial with the gun bore, gatling adopted a conical gun bore with a larger diameter at the back of the gun barrel, which made it easier for the projectile to enter the gun barrel. However, while solving the loading problem, a more serious problem has emerged: due to the excessive diameter of the gun bore, the warhead rolled during the flight. So gatling combined the independent bore and barrel into one, and developed the 1865 model with significantly improved performance, which became the blueprint of the later tube-passing weapon.

For various reasons, gatling's Gatling machine gun was not effectively used during the American Civil War, but he still devoted all his energy to the development and improvement of Gatling machine gun. 1562, 1565, 1893, etc., and the caliber is 0.30 inch, 0.45 inch, 0.58 inch, 1 inch,13mm, etc. The number of tubes is 6 and 65438. Even now, the later barrel weapons are quite perfect in technology.