Responses
I don't think it's the gun it's more so the angle. If I wanted to give the artist a leeway, I would say that MC was distraught and maybe his hands were shaky so he ended up firing at weird angle and it grazed his head. He should've had major eardrum issues though considering how close that was to his ear.

The fuck kind of gun was that? How could he shoot his head and "nah, just hurt his ear a bit".
Only shock value AND FOR WHAT, FOR NOTHING