Sorry, but Oswald was a “Marksman” in the Marines. That is shooting at 200 yards over open sights. The distance Oswald shot Kennedy was at about 70 yards with a scoped rifle. Hell, I hit a beer can at 90 yards the first time I ever shot a rifle.
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?
You are right. Oswald was a marksman in the marines. He was a crack shot. Anything else is a lie. Hitting Kennedy from 70 yards was a lead pipe cinch for him.