FWIW, Mary Woodward's recollections do not remotely support a first shot miss circa 150-160, a second shot hit circa 224, and a third shot head shot at 313.
(11-23-63 newspaper article Witness From the News Describes Assassination written by Woodward for the Dallas Morning News) : After acknowledging our cheers, he [JFK] faced forward again and suddenly there was a horrible, ear-splitting noise coming from behind us and a little to the right. My first reaction, and also my friends', was that as a joke someone had backfired their car. Apparently, the driver and occupants of the President's car had the same impression, because instead of speeding up, the car came almost to a halt. Things are a little hazy from this point, but I don't believe anyone was hit with the first bullet. The President and Mrs. Kennedy turned and looked around, as if they, too, didn't believe the noise was really coming from a gun...Then after a moment's pause, there was another shot and I saw the President start slumping in the car. This was followed rapidly by another shot.
(12-7-63 FBI report, 24H520) She stated she was watching President and Mrs. Kennedy closely, and all of her group cheered loudly as they went by. Just as President and Mrs. Kennedy went by, they turned and waved at them. Just a second or two later, she heard a loud noise. At this point, it appeared to her that President and Mrs. Kennedy probably were about one hundred feet from her. There seemed to be a pause of a few seconds, and then there were two more loud noises which she suddenly realized were shots, and she saw President Kennedy fall over and Mrs. Kennedy jumped up and started crawling over the back of the car.
(Interview in The Men Who Killed Kennedy, broadcast 1988) ?One thing I am totally positive about in my own mind is how many shots there were. And there were three shots. The second two shots were immediate. It was almost as if one were an echo of the other. They came so quickly the sound of one did not cease until the second shot. With the second and third shot I did see the president being hit. I literally saw his head explode.
Woodward saw Kennedy react to a shot fired after he passed her, and then saw his head explode when two more closely bunched shots were fired. Although she later made it sound as if she saw him hit by the second shot, and then hit in the head with the third shot, her earliest statements do not support this, and her continued claim the last two shots were on top of each other undermines this claim.