I also always mention the mexican drug cartels and the ft hood shooting, and what this pistol did in those events. while it's not for the positive side, it killed many people.
you can buy SS198LF (which isn't outrageous, about 30 bucks for a box) that will pierce IIIa vests. if it mushrooms, it won't. if it doesn't mushroom, it goes through IIIa. once it fits flesh, it just tumbles like a small 5.56 round that we've been using for 40 years now in our military.