I got to experience fighting within the confines of a Humvee once. M-4s in the cab and an M-2 .50 going off above my head.
I don't know the science behind auditory exclusion, but after getting back to the FOB, my ears felt fine (I had in an ear piece in one ear) but I felt like I did back in high school after getting a concussion during football.
So, my point is, if it comes to your guns, you might not even notice your ears.
NRA Life Member
"Had King Kong showed up in Texas, Frank Hamer would have taken him down with his Model 8 in .35 Remington...well, he was kind of big, so maybe his BAR"