I know this is a joke, but my autistic ass has got something to say about this. 5.7x28mm is not only ridiculously expensive, but horribly ineffective against crackheads. This is because between the crackhead's lack of pain recognition and the round's lack of stopping power, they will not notice that they now have tiny holes in their torsos. This is the same problem the US Military had during the Moro Rebellion, which led to the invention of .45 ACP, and subsequently the M1911.
In short, use .45 ACP instead. It's cheaper and historically proven to be more effective against crackheads.