As my eyes age I am noticing more and more that I can't see what I used to. I will never forget my great open sighted epiphany. I used to take a open sighted 4 5/8" barreled .45 Blackhawk and shoot good enough at 100 yards to hunt rabbits. I went to the range one day and stuck one of the 3" target dots on a piece of paper and backed up to the 100 yard mark. I got ready to shoot only to discover that while I was walking back to the bench the dot had fell off the target so I started walking back toward the target. At about 50 yards I realized that the dot was still there.........