I have a very good friend that through the years has lost his vision .I mean lost all vision , blind.! We speak all the time and he asked me a strange question.! Is it possible to shoot by hearing and not by seeing at all. ? A little back round: In 1970 , and while at AFEEES Cleveland , he took his physical for the service , army to be exact . In these basic tests , he had amazed Those being in charge of these tests . Hearing to more precisely . He was hearing below and above the normal spectrum of human hearing which is (20hz--25,000hz).! He was hearing well below this audio spectrum . The people in charge were so sure he was toying around with the hearing test , they kept him over night to take this test three times . You know , the little sound-proof booth with the button masher in your hand . Needless to say , the boy was hearing exactly that , the test , all three times , precisely the same , he,d heard well below and above normal hearing ! Is it possible to set up a small target range to shoot totally by hearing and no vision ? I,ve got some good ideas as how to set up the range with simple noise makers and fishing string. Do you think this can be done safely or at all ? I personally believe it can be done .! WHAT SAY YEE..?