I currently hunt squirrel with a 20 gauge, but I want to switch to my .22 because it is quieter, and i can shoot for the head so as to ruin less meat and fur. My question is: Can you safely take squirrel in trees with a .22? I'm worried about the arc of the bullet should it continue on, and not knowing where it will land. Is this a concern? Will it carry enough velocity to be dangerous when it hits the ground? Or, at what angle will the velocity be diminished enough to no longer be dangerous?