Hello, I am new to this site, joined yesterday. I read your note and I certainly can relate. I have the same problem. It's been 30 years or so when I was really stupid and fired several rounds of 357 mag. without hearing protectors while standing under a tin cover. Not a good thing to do. Anyway, I have had serious ringing ever since. Yes, it gets much louder at times, then it settles down a bit. It will never go away and there is nothing that will eliminate the ringing. I have tried it all. I have learned to live with it and accept it.