M16’s bullets fragment from high velocity. The Carcano wasn’t designed to do that and the head shot IS NOT CONSTANT WTH A CARCANO.
However, the third and last shot did fragment along the cannelure. It blew apart into two major pieces and also left a shower of lead particles. One piece cracked the windshield and the other dented the trim. So the head shot was consistant with a bullet that fragments just like Oswald’s third and last shot and exactly what you would expect from a caliber such as a 5.56.
On entrance, the skull had a bullet hole in the back. It was aproximately 6.5 MM. Inside the skull the bullet hole was a larger diameter which is called the cratering effect. It’s cone shaped and the same as shooting a bb at a plate glass window.
No witness has ever produced testimony, photos or film showing a Secret Service man standing up in a car and blowing a president’s head apart.
Look at Menninger/Donahue’s book for the photos. In fact, they do have photos of George Hickey standing up behind the president just moments after the first shot. ALL the SS guys testified that he had an AR-15. So, yes, there is plenty of evidence to that fact.
Hmmm? Let me see now. First we have the so called "magic bullet" shot that did all the things it was purported to have done, only looses three grains from it's original weight and acquires a slightly bent tip in the process and the very next bullet fired, within seconds, from the same rifle and same lot of ammunition DOES fragment and does all of that? Isn't that interesting?