I've been using the Walker's Game Ear units for the last year while shooting shotguns, rifles and a pistol during hunting seasons and for sighting in scopes. I normally still hunt and have been extremely impressed with them. You can hear the animals better and they have a high NRR rating (I believe it's 29). At this point, I refuse to hunt or sight in rifles without them because they are that good. I use the Walker orange foam inserts in the ear instead of the clear rubber ones and would recommend them as well. So far, I have had zero ringing in my ears after shooting with them and no increase in tinnitus. I wish I had bought these many years ago and highly recommend them.