This You Have To See: Handheld Minigun vs Ballistics Gel
Since the 1980’s the minigun has been in regular use with U.S. Armed Forces. Actually, the concept of the minigun goes back much, much further, it really came to fruition during the Civil War in the form of the Gatling Gun.
The Gatling gun’s operation centered on a cyclic multi-barrel design which facilitated cooling and synchronized the firing-reloading sequence. Each barrel fired a single shot when it reached a certain point in the cycle, after which it ejected the spent cartridge, loaded a new round, and, in the process, allowed the barrel to cool somewhat. This configuration allowed higher rates of fire to be achieved without the barrels overheating.
But today we’re talking about the GAU-2B/A (M134) General Electric Minigun.