You realize it’s a function of distance and that function is logarithmic, right? A gunshot at one foot is a hundred times louder than it is at 20 feet. If you were exposed to a million gunshots of any caliber from a foot away, you would be profoundly deaf.
So why even mention your million rounds as a reply to “I just fired a gun right next to your head, neither of us was wearing ear protection and now we’re having a conversation at normal volume”? Talk about ignorant.