okay, sorry-but I got bored with the db reduction arguments and skipped to the end.
Just going to share my years of experience and current practices.
My ears ring all the time--I can still hear a squirrel fart at 200 yards, but it's amidst a permanent ringing. Most of my hearing damage was done with rock concerts/bar performances and gunfire. The SINGLE most damaging event was firing a slug round through a Cutt's Compensator w/o protection. It was memorable--and way worse than a 4" 357-don't ask how I know. The Cutt's incident was like this-- BOO....I didn't hear the "M"
all sound ceased to exist for several seconds and then a ringing started way off in the distance. The ringing got louder and louder and eventually other sounds started to be heard again. NO thing has rattled my head like that one.
I wear protection for all gunfire except long-gun rimfire and hunting. I also wear protection for weedwhacking, chainsawing, shop tools, lawn mowing, sporting events (Titans Football), motorsport--etc. A coach/referee type whistle makes my ears ring louder when I blow it. I can clap my hands and make my ears ring (louder).
The only time I've tried to hunt with protection is when using centerfire short arms.
Probably average three unprotected shots per year from big guns while deer hunting. And that's just damage I'll have to deal with.
Hearing is not like eyesight. Medicine does not yet understand how to correct the damage. Best practice is to
protect it at EVERY OPPORTUNITY. You may live longer than you thought.
I'm 42.
And if you want the best protection available, you have to have plugs made to fit your ears. They're not that much-and are quite effective. I may look into that.