The stuff i think of-

Fall back on you, air resistance is too great for it to reach space

Oof lol

Would it matter though?
I mean like because the speed has gone down and there is no more gun powder can it do damage?
Sorry I know nothing about guns

Same lol

If you shoot a gun straight up, The bullets trajectory will vary due to the wind and such but when it comes down gravity and the wind will make it fall down on its side rather then head on so you won’t die

Good point lol

Watch the Mythbusters episode about this topic, it will make some sense

Okee

it'll come back down somewhere near u due 2 some physics crap i'm 2 lazy 2 explain

It falls back down
Interestingly enough: dozens of people are injured in the middle east every year when they shot their gun off during weddings and the bullets come back down...