You realize with the range of your average shooting a blackpowder revolver circa 1840-60 is just as dangerous as a modern HK USP .45, only the modern weapon has a saftey and won't discharge when a bit of cigarette ash falls on it.
.22 LR is not a round to underestimate. One tiny little unjacketed lead ball tumbling out of a shitty barrel is quite possibly more lethal because it will mushroom and distort around in the body, breaking into little bits and generally ruining your chest cavity. I know a guy who caught one .22 and had full on tension pneumothorax. Meanwhile the 5.56 round being fired out of fully automatic assault rifles is being bitched about by soldiers for going right through people without breaking their stride.
I agree with Grakelin, although 'deserve' is one of those easy to reinterpret rules to where only police deserve weapons, or only Republicans deserve weapons, or only members of the political and cultural elite and their bodyguards deserve weapons. Lets keep the bar low for the sake of not raising it too high. That is, no mentally insane people or felons. Even so, things like this will happen, no matter the legality of firearms, because people intending to do illegal things will aquire their tools illegally if it is so required.