swiperNo, I think that line is pretty easy to draw. Guns are made for the express and solitary purpose of killing. Not only that but they make killing ridiculously easy and impersonal and make it so almost ANY person can take dozens of lives in a matter of minutes. Kitchen knives, cars, etc. are not made for killing and have actual legitimate uses. Guns don't. There is no reason why civilians should legally be able to access something like that. I have no interest in being "protected" by gun-toting self-proclaimed vigilantes either--they are just as apt (if not more so) to make a mistake or have an emotional or otherwise inappropriate response to a situation as anyone else is, and the results of such a mistake could easily cause deaths. Plus it's incredibly easy for those guns to fall into the wrong hands (e.g. someone's kid, getting stolen, etc.) or for an accident to happen. It's just not necessary at all.
What about throwing knives and archery? I mean there are plenty of gun exhibitions, which are the main uses. Obviously, you want to draw the line once it passes a certain lethality point, but those weapons are lethal too. The just have a much greater skill curve, so to speak. A baseball bat is a purely for an exhibition of the sport, but can definitely be used to harm people (and it's been done before). It probably doesn't pass the lethality threshold. I just want to know what's your lethality threshold that guns pass and other mediums don't. Also, does it have to do with the curve to learn how to use weapon (or make explosives, etc). Because there are plenty of swords and what not that people are allowed to buy and own despite having very small utility, and I haven't heard you address that.