May be true. May not. How do you identify who is a nut and who is not? Is it by skin color, hair color, pot bellies, language, beer choices - just how do you identify them? Which is the point.
What is a .22 Ruger Rimfire?
For many years it has been a bolt action, chambered rifle. People love it because it is highly accurate and low maintenance along with rarely jamming. IT uses LR 22 ammo. If you've got a fox problem, a wild hog problem, nuisance squirrel, beaver dams, etc. - set up, wait, drop it when it comes around.
But, you would probably call it an assault rifle in its semi-automatic form without the bolt action - right? Still used for the same purposes and capable of getting off shots faster in taking down the intended target.
So just say you are against all semi-automatic rifles. Simple as that.