What exactly causes the BANG! sound in a gun?
In: Other
Sound is pressure waves. A gun is a tube full of very very high pressure. As the bullet leaves, the pressure is allowed to escape, and this extremely high pressure escaping suddenly produces a short but violent burst of pressure waves. Sound. This is known as the report.
A good suppressor can mitigate the report. If the report is quiet enough, you’ll instead hear the sound of the gun operating as well as the sonic boom of the bullet. The latter is best described as a snap, but very loud. It’s not really an experience that can be described or even very well understood through recordings.
If you’re a decent distance downrange from the gun, you may not hear the report at all over the snap, or you may hear the snap first and then the report later.
In the case of subsonic, well-suppressed firearms they become uncomfortably quiet.
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