Still waiting on my permit, but I only plan on carrying hollow point. In the very serious scenario of you being forced to defend your life, you want your bullets to stop traveling as soon as possible. You want misses, god forbid, to hit a wall and fragment instead of ricocheting (though I don't know the actual ballistic capabilities of a hollow point, I think that "tumbling" through the air will slow its bounce travel more), and hits to expand and not exit, or exit slowly.
I thought I read somewhere that some states don't allow hollowpoints. I guess, if legal, that safety slugs would be an alternative. Some people say that they are less effective than a fmj against the bad guy, though obviously safer if you miss.
I read some people saying "make sure of your backstop" which is fine for target shooting but I don't know if you'd have the time to arrange for your bullet path in self defense. I'm short, so unfortunately if I ever have to defend myself, chances are I'll be shooting up and not down*. Not that down is "safe" as bullets can skim depending on the angle and the material you're shooting at.
No bullet is surefire safe. Just practice often, and I guess that any round, if its all you have, and it manages to fire, can stop the bad guy and not hurt innocent bystanders.
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*I know this sounds kind of funny. By "Up" I mean past an angle of horizon, not that I'm two feet tall and firing skyward. =P