The Gatling-Style Rotary Cannons is a rapid-firing multiple-barrel firearm invented in 1861 by Richard Jordan Gatling. It is an early machine gun and a forerunner of the modern electric motor-driven rotary cannon.

The cyclic multi-barrel design synchronizes the firing sequence. Each barrel fires a single cartridge when it reaches a certain position in the rotation, after which the spent casing is ejected at a different position and then a new round is loaded at another position. During the cycle, the barrel has more time to dissipate some heat away to the surrounding air.

Here, I present a formidable lineup of seven Gatling-style rotary cannons, proudly serving within the ranks of the United States military.

00:00 Top 7 Most Powerful Gatling-style Rotary Cannons of the US Military
01:16 1. M61 Vulcan
02:57 2. GAU-8 Avenger
04:03 3. GAU-12 Equalizer
05:20 4. GAU-19 Rotary Heavy Machine Gun
06:25 5. GAU-22/A Gatling gun
07:47 6. M197 Electric Cannon
08:58 7. M134 Minigun

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