Just a heads up. I had my annual hearing test and hearing aid check last week. My new audiologist asked me if I shoot large caliber rifles. Yepp and I wear plugs and muffs. Not good enough she said. A lot of my hearing loss and tinnitus is from the sounds conducted by the rifle stock. First time I have heard this. She said carbon fiber, fiber glass and plastic stocks were the worst offenders, wood transmits the least. The fix is relatively simple, put a rifle stock pack with a cheek pad on the rifle. I ordered three the same day. My audiologist is retired military and knows her stuff and she is a shooter. FWIW I have a moderate to severe hearing loss in both ears and tinnitus in both ears. My hearing loss is the result of exposure to noise. After 40+ years of shooting, engines, turbines, power tools .... no surprise. This is the pack I bought. http://www.ebay.com/itm/191556409894