Another interesting read is American Gunfight: The Plot to Kill President Truman – and The Shoot-out That Stopped It by Stephen Hunter and John Bainbridge, Jr. It shows the difference in training, at the time, between the Secret Service and the guys who tried to kill Truman. And it also shows how the press hushed up what really happened.
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You know what though, people could just bypass this issue entirely and just cheat by using a red dot. I think with a modern, ruggedized, miniature red dot, that would be the ideal way and certainly more consistently accurate than point shooting....