Just playing Call of Duty and noticed the death machine spins and I always wondered why.
In: Engineering
Guns heat up when they are shot. A lot. They get even hotter even faster when more bullets are fired. If they get too hot it can warp the metal in the barrel, which destroys the gun, or warp/melt the bullet, which makes it useless.
Most heavy machine guns are built with cooling systems in to disperse this heat. Getting guns, which fire too fast even for cooling systems, solve the problem by having multiple barrels. When the gun is fired, it’s only shooting one bullet at a time, but from a different barrel with every bullet, so the heat buildup is shared between multiple barrels instead of just one.
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