I was putting a friends chronograph in the truck this evening when I noted a disturbance from 30 feet away. As for the chronograph, it is a device used to measure the speed of a projectile. One from an air driven rifle or some other type of firearm. As for the targets, a pair of raccoons. The raccoons will never find their way into the cross hairs of an air rifle. However, they may find their way into a trap. Especially if they knock my trash cans over.
I guess the question of how fast the moving projectile should be for said targets will have to wait for another day. If they do find their way into my trap, I will kindly relocate them to the park down the road.