Tell him to stand in your yard while you shoot at his barrel.
If he does, he’ll see what you’re seeing.
If he refuses, then you’ve made your point.
Or tell him you’ll shoot back with your .40 cal and see if he minds.
Here’s a link - http://www.ar15.com/archive/topic.html?b=5&f=20&t=88660
Scroll down, a source from Speer ammo says the max range is 1753 yards.
> Tell him to stand in your yard while you shoot at his barrel.
If he does, he’ll see what you’re seeing.
If he refuses, then you’ve made your point.
Somewhat of a joker are we?...LOL