Gunshot volume (dB/SPL) at different distances?
Does anyone have any information about how loud gunshots are at different ranges?
At point-blank, it sounds like a common rifle caliber could generate about 150 dB. But what about at 100 yards? 200 yards?? How much does the SPL reduce over distance?
Read and absorb this and you'll at least realize that many variables exist.
Hope you don't need this info to deal with a noise complaint.
This can be treated fairly well as a free space path loss problem. So as above, the only rule of thumb is going to be as stated above : 6db every time the distance doubles should be fairly accurate given a clear path between you and the firearm. Now simply assigning a fixed dB level to a gun blast is not accurate. Different angles (in 3 dimensions) will have different SPL's based on the aperture of barrel. I don't even want to think of how the bullet would effect the pattern.
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