What is heard when a bullet is discharged, first it is the wizzing sound of the bullet zinging past, second is the crack or the sonic wave of the bullet breaking the sound barrier right after the discharge, third is the boom of the discharged round. To say that a bullet is making a sonic crack of its entire duration of travel above the speed of sound is utterly absurd. Obviously you never had a bullet wiz by your head, because I will say from personal experience that bullets don’t carry a sonic crack when it goes wizzing by.
Irrelevant to the nonsense that the sound of bullets that are at fired hundred fifty yards away can cause hearing impairment wizzing by the ear a centimeter away, even if it pierced the ear, more like a couple few feet next to the discharge without earplugs. The he silly logic you’re trying to produce here is astonishing. As far as military experience, the number of rounds fired is minuscule compared to what this one has spent before and after. I know quite a few guys who were in the military and never shot a single round or very few, whip-Dee-frik’n-doo.