Given the chance, I have learned to put my right ear down on my raised right shoulder, but not in anything even approaching deadly force situations. I hear those same crickets that Iggy hears, even though we are a long distance from each other. Tinnitus is just one of (and a mild one at that) the extended list of negative things that result from being in harms way with a firearm. But I would suggest that you not even considder this consequence in your mental preparaations for finding yourself with NO OTHER CHOICE than to apply deadly force to another human being. I would hope that I would not be tenative, but deliberate in that case, and that my focus would not be on my ears, but the lives of those involved. Flapjack.