Why Do Guns Make So Much Noise? - Science ABC

The loud bang of a gunshot is caused by the release of pressure that occurs after the bullet leaves the barrel.

If you’re into action movies, then you’ve almost certainly lost count of how many times you’ve seen raging firefights between the “good guys” and “bad guys”. These fights may be based in different context, characters, and realities, but there’s one thing that is common to each and every firefight that you’ve ever seen in movies and televisions: the sounds of those guns firing.

We’ve gotten so used to it that we barely realize it’s there, but outside the fictional context of movies, have you ever wondered what actually causes the loud bang of a gunshot?

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