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It’s very loud but technically harmless, Barrow said. A 12ga shotgun round, when fired, emits a sound of about 165 dB SPL, re 20 uPa. That is more than enough
by hprotagonist 8y ago
It’s very loud but technically harmless, Barrow said.
A 12ga shotgun round, when fired, emits a sound of about 165 dB SPL, re 20 uPa.
That is more than enough to cause immediate and permanent damage to anyone close by who is not wearing hearing protection, so I’m calling BS on this claim.
This is not so much a prank or deterrent device as it is a very justified lawsuit waiting to happen. I’ve watched the assembly video and there’s no evidence of any baffles or other noise intensity reduction devices, so this sure looks like someone’s getting the full noise level whenever it goes off.
- freedomben 8y agoBlanks are significantly quieter than regular rounds (not sure if the dB level you posted took that into consideration or not). In fact, you don't really need hearing protection with blanks at all. In the military we trained with blanks all the time without hearing protection, and they are anal about OSHA standards. But I agree, it's a lawsuit waiting to happen. I would not recommend anybody do this.
- hprotagonist 8y agohmm. A starter pistol is ~145 dB, and that’s a .22 blank. i’m guessing you’re still well into “OSHA says there’s no safe exposure duration” territory... but i have not found a source for a shotgun blank sound intensity.
- mgarfias 8y agoHe’s using a 209 shotshell primer, not a “blank”. A .22 blank and a 209 Shotshell primer are not significantly different in volume.
- hprotagonist 8y agoThanks for the data. Sounds like something you don't want to be 18" from when it goes POW, then.
- mgarfias 8y agoEh. It’s not that bad. Firecracker like.