(3) Deadly force shall mean force which the actor uses with the purpose of causing or which he knows to create a substantial risk of causing death or serious bodily harm. Purposely firing a firearm in the direction of another person or at a vehicle in which another person is believed to be constitutes deadly force.
A threat to cause death or serious bodily harm, by the production of a weapon or otherwise, so long as the actor's purpose is limited to creating an apprehension that he will use deadly force if necessary, shall not constitute deadly force;
Sometimes you just have to let stuff you hear at the range go in one ear and out the other. Many times it's necessary in fact.