In his confrontation with a bank robber in Dirty Harry (1971), did Harry Callahan (Clint Eastwood) fire five shots or six?

My father Ernest E. Kurtock was the head layout carpenter for The Douglas Corporation the manufacturer of The work Horse of The Berlin Airlift, The C-54 Transport. Those planes were built at Ohare Field in 1943 in The Hangers my father helped build …