dcali
Bullet Maker
Norm,
What do you think of the preformance of these electronic muffs offered on Amazon? They have excellent reviews but they are pricey.
MSA Sordin Supreme Pro X - Premium Edition - Electronic Earmuff with black leather band, black cups and gel seals fitted
28 customer reviews
| 9 answered questions
Price: $275.00 Free Shipping for Prime Members
Sold by ACE-Instruments and Fulfilled by Amazon.
I have some of these. They are not enough by themselves. The cost is due to the mechanical quality. They are very well made and very comfortable to wear for long periods of time. If you look at the details of their attenuation, you'll see they're ok for higher frequency noise, but fall short in the lower frequencies. But that is typical of small volume muffs as far as I can find (I dug through some publicly available research materials, and it seems pretty constant, which isn't surprising given, well, physics).
The real answer here I'm afraid is that you have to double up given the practicalities of poor fit and shifting muffs, ears, glasses, etc. And you're better off not shooting the big boomers too much without suppressors. There's some military research out there on the web that basically says that it is impossible to protect the artillery guys. They will suffer hearing damage over time due to the sound traveling straight through the bone.