Was the beer can a moving target and did you have sweaty palms and a case of the nerves because you were about to change history?
That’s handgun range for a Marine. 44 yards and 88 yards.
When you learn about rifles, tragectories and ballistics, the grassy knoll lies are just that. Lies.
Kennedy was not moving that fast and the angle was mostly on a tangent away from him, making it a fairly flat shot. Not that difficult