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Old June 11, 2010, 09:00 PM   #8
Senior Member
Join Date: July 31, 2009
Posts: 641
The plugs he had didn't attenuate 90dB, their filter started at 90dB input. I don't know the actual attenuation.
I quess they could be something like the Noise Breakers at this link but these are only rated at 19db NR, pretty low for shooting. Or perhaps the Sonic Blast at this site or the Sonic Valve at this site but once again only rated for 19dB NR.
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