There is no industry standard for noise reduction ratings in the earmuff industry, each manufacturer comes up with their own rating. One of the best muffs I have a set of electronic muffs that only have rating of 22 but actually work better for me than a couple of pair that are rated at 30.

drover

223 Rem, my favorite cartridge - you can't argue with truckloads of dead PD's and gophers.

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