06-04-2011, 09:36 PM
Massad Ayoob, The JFK Assassination: A Shooter's Eye View, American Handgunner, March/April 1993. "The explosion of the President's head as seen in frame 313 of the Zapruder film is simply not characteristic of a full metal-jacket rifle bullet traveling at 2,200 fps or less. It is far more consistent with an explosive wound of entry with a small-bore, hyper-velocity rifle bullet traveling between 3,000 and 4,000 fps, and probably toward the higher end of that scale ...An explosive wound of entry occurs when a highly liquid area of the body, such as the brain, is struck by a high velocity round. The tissue swells violently during the microseconds of the bullet's passing, and seeks the line of least resistance. That least resistance is the portal of the entry wound that appeared a microsecond before, and the bullet will not bore an exit hole to relieve the pressure for another microsecond or two--perhaps not at all if the bullet fragments inside the brain. If the cataclysmic cranial injury inflicted on Kennedy was indeed an explosive wound of entry, the source of the shot would have had to be forward of the Presidential limousine, to its right, and slightly above...the area of the grassy knoll."