In the case of the .45-70 there are documented cases of lethal shots at well over a mile. In Afcrapistan some Canadian snipers wacked a guy at at 1375 Meters. Fire those weapons straight up and they could do some damage due to the weight of the bullet. But a 38 caliber or a 9mm have very little force when acted upon by gravity.
BTW the penny off the Empire State building killing someone is also not true.
Sorry mad_as_he$$ but you don’t know what you are talking about. A grain of sand can be “lethal” if it hits the right person in the right place.