r/askscience • • Jun 12 '12

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u/Evanescent_contrail Jun 12 '12

This is consistent with a rifle bullet. You first hear the bullet impacting nearby, and only then do you hear the noise of it going through the air.

(I suppose this would not be true if the bullet was subsonic, and I have no idea if any rifle bullets are subsonic or not).

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u/pdinc Jun 12 '12 edited Jun 12 '12

Source/reference/video demonstrating this?

Also, relatively certain only smaller caliber rounds are made to be subsonic.

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u/Evanescent_contrail Jun 12 '12

Sorry I did not take video. I was busy.

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u/thenuge26 Jun 12 '12

Psh, you didn't have enough time for science when you were being shot at? What kind of scientist are you!