Yeah, when applied properly, the etys (and other sealing IEMs) can achieve close to 25 or 30db of attenuation, but after about 35, it's coming through your skull and not the ears. So you can wear the shooting range headsets (I've thought about it), in addition, but that will probably only garner another 5 or 7db, and after that it's hiding behind a seat or something as you arn't "hearing" it through conventional means. To overcome that, you have to just turn the headphone amp up which isn't a healthy idea.