Truth be told, being shot by a pistol doesn't cause a body to go flying like in the movies. Think about how much recoil you feel when firing and that is about what the person at the other end is hit with as well (Newton's third law). It's the hydro-static shock as the bullet passes through the body that causes most of the damage and if the nervous system is not immediately knocked out a person can stumble around a bit before collapsing. There's even been stories of people who were shot and took off running before they went into shock from the blood loss and collapsed.