snipped

What's really goofy, is that the only tool that actually fires a 22cal
shell, (into concrete), is called a "Powder actuated tool". Those tools
actually are a "gun" of sorts.....

These guns require pressure against the surface. You cannot point it
at you head and expect it to work as a gun to harm yourself in
suicide.

You can bypass safeties in framing guns and shoot at rabbits from the
roof on a new construction home. :-)