I've had it for many years. I blame most of it on riding tractors without a cab, that had load exhaust. I've used hearing protection for shooting for a very long time, except in hunting situations. I have hearing aids, mainly because my insurance paid for them. I also have some Walker Power Muffs that I use on occasion when hunting. I guess I've gotten used to the constant ringing, and I have quite a bit of hearing loss as well. I've noticed the hearing loss more this turkey season than at any other time. I'm having trouble hearing them gobble, especially telling which direction it's coming from.
