I hunt without ear protection. I typically rarely take more than a couple of shots per animal with a rifle most of the time taking only one shot per animal I shoot and then its only one or two animals per day.
When I bird hunt I also don't hunt with hearing protection. I take more shots with the 12 gauge shotgun than I do with my rifle. Ducks - you can make many multiple shots in a day. The same goes for pheasant and grouse hunting.
At the time of hunting I don't notice any ringing or adverse conditions in my ears.
I DO however wear hearing protection whenever I shoot trap, skeet or am on the line practicing with rifles/handguns etc.
I made the mistake once of not wearing hearing protection (I wanted to know what the gun - my 1911 - sounded like without hearing protection) and put two rounds downrange without hearing protection. I won't ever do that again. Thanks to that I had ringing in my ears for nearly 48 hours straight and I felt as though I had water in my ears for a week. Luckily that apparently didn't injure my ears.
This is who we are, what we do.