For all the semi-science about propelling projectiles of some type by rapid oxidation of some material, guns have, and have since their invention, one primary purpose: to kill or destroy. That's the purpose whether the projectile is 16" in diameter or .17" in diameter. When I took my artillery unit to the field, we practiced the primary purpose of 155mm howitzers, .50 caliber machine guns, 7.62 caliber guns, .223" caliber, .45 caliber, 9mm and so forth. Are you telling me that there is something different in the 1911 I carried "under arms" and the 1911 I take to the range?
The fact that I own and use "guns" for purposes other than going out and committing murder and mayhem is totally beside the point. What am I practicing when I go to the range other than being better at using the gun for it's intended purpose, whether I ever use one for that purpose or not. I didn't buy my .22's for the purpose of killing, but I am not dissuaded by any argument that their root purpose is just that.
The fact that guns primary purpose is death and destruction, doesn't in any way make them inherently evil. As said, ad nauseum, tain't the gun that does bad things, its the person using the gun. I'm not ashamed that I own them, carry them, and, if necessary, am willing to use them for their intended purpose.