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.
Blanks 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.
hmm. 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.
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.