To sort out gunfact from gunfiction, we interviewed two decorated combat veterans who also have experience working in Hollywood…
#5. Automatic Weapons Are Useful, but a Huge Pain in the Ass
One of our experienced combat veterans, Jerry, said it’s called a “runaway gun.” Every time a gun — any gun — fires, the barrel heats up a little bit. After all, the bullet is being propelled by a tiny explosion, and it’s creating metal-on-metal friction all the way down the barrel. If you pass a lot of bullets through that barrel in a row without giving it a chance to cool down, the whole gun gets literally red hot.
Hot enough, in fact, that it will eventually start spontaneously igniting (or “cooking off”) the bullets without waiting for you to pull the trigger. Congratulations, you now are holding a possessed machine gun that is randomly spraying bullets on its own, which is enough to make even the most grizzled member of the Expendables cast shit his pants.