I was in my 30's. I too, remember it like it was yesterday.
I had my grandfather's Model 99 Savage in my left hand and two bullets in my right ( I had just finished hunting for the day and had emptied the rifle). I looked up and saw the buck standing in a field looking directly at me. I chambered one round, raised the rifle and sighted him at 100yds throught the metal peep site. As he turned broadside to run I squeezed the trigger and he dropped on the spot. My first deer was an 8 point 142lb buck.