Guns are for killing. Nothing else. Unlike cars, trains, planes, knives, axes and lawnmowers.
No. Guns are for projecting lead, usually copper-jacketed lead, at a point in the distance.

That poor defenseless watermelon. Murdered in it's prime.
Killing another human being is, statistically, the least significant use guns are put to.
There are many guns (possibly even most) which have never killed a human being. Almost all of the guns which have are property (or were at the time) of a government. There are, additionally, guns which, despite the relatively high number of times they have been used, have never killed
anything, except possibly watermelons.