In an apartment maybe?......
I live in an apartment and have walls that are literally thin enough to punch thru, much less a projectile that's travelling twix 850-1500fps. So, unless your apartments are unoccupied, less penetration might just be a good thing.
Perhaps it's just b/c I'm graduating from law school net month and I now see everything as having a possible litigation behind it. (Notice!!!!! This is NOT a legal opinion nor is it advice. The following statement is merely a hypothetical situation and possible result.)
Think about this. Say someone breaks in and you, justifiably fire two projectiles at said bad guy. One hits him in the head and he is DOA. The second flies past and into your apt wall, subsequently penetrating the entire wall and entering the apt next door. Unbeknownst to you, itstrikes a resident and wounds them. They recover. What happens to you?
Well, presuming allot of facts not present, you will be ok and your use of force will be ruled justified. Even your stray 2nd projectile that wounded the resident will most likely ( at least in most law) be ruled as non criminal. However you may be held civily liable - even in a castle doctrine or stand your ground state. (it would depend)
Bit even if you are cleared both in a criminal and civil sense, wouldn't it bother you and potentially haunt you that the other victim ( I say that b/c they are a victim of the perp's orig crime) could e been saved the pain and agony only if you had used a proj that would have potentiay not penetrated the apt wall? I personally would, but that's just me.
Just b/c one is not criminally or civily (sic?) liable doesn't mean it wouldn't bother you mentally. Again that's justme. And b/c of thy reason, I plan tovery shortly purchase rev pressure SXT ammo a d some of the less penetrating Glaser safety slug ammo. Or even that airfreedom round from extreme shock. I've actually seen it in action and itdoes work as claimed. Their other fang ammo or whatever it's called however, does not.