I think that the reports said that there were a number of small fragments on the back of JFK's head (xray) outside the skull.
Sigh. . . . The 6.3 x 2.5 mm fragment was not "outside the skull." It was embedded in the outer table, which means it tore through all four of the layers that constitute the scalp, two of which are tough and dense. You *still* have not read my first few posts on the back-of-head fragments, apparently.
Even if u are correct that one of these was 6.5 by 2.5 then i dont see why this/these had to be very painful.
A blunt bang on the head can be very painful (with much swelling & bruising). But a sharp bang aint necessarily very painful.
And i dont see why these fragments could not have come from Oswald's shot-1 ricochet off the signal arm (guy rod).
The brass FMJ fragments into 2 halves.
The remnant lead slug is usually in one piece.
Except that there is always some lead splatter (& praps some brass splatter).
Having a 6.3 x 2.5 mm fragment hit you hard enough to tear through all the layers of your scalp and embed itself into your outer table would be nothing like a "blunt bang" but a rather sharp and painful stab. Again, get a needle or a needle-like object and see how hard you have to push to penetrate through your scalp and into your outer table, and see how much it hurts.
In rechecking the sources on the McDonnel fragment, I see that McDonnel said the fragment was "
between" the galea and the outer table. That means the fragment penetrated the skin of the scalp, went through the subcutaneous tissue beneath the skin of the scalp, and then tore through the galea and lodged in the layer between the galea and the outer table (the periostium). The galea is defined as " a sturdy layer of dense fibrous tissue." The periostium is also quite dense.
It is apparent that you are beyond persuasion regarding your silly, bizarre theory. Your theory butchers Donahue's plausible ricochet theory and morphs it into a bizarre joke that assumes that "Oswald" fired nearly straight down, that he fired when the guy rod was near his target in his field of view, that this bullet struck the guy rod, that the bullet generated a fragment that tore through three of the four layers of JFK's scalp and lodged between the galea and his outer table, that the bullet also generated another fragment that tore through JFK's galea and periostium and then embedded itself in his outer table, and that, amazingly, JFK just kept on casually smiling and waving after receiving these two painful fragment hits. This is a sad joke.
To make matters worse, your whacky ricochet theory requires us to believe that a fragment from the alleged guy-rod-collision somehow magically traveled hundreds of feet and struck the curb near Tague hard enough to send a chip of concrete streaking toward his face with enough velocity to cut it, or that this magic fragment hit Tague's face directly and that another magic fragment struck the curb near Tague and created a visible scar that everyone who saw it on 11/22 described as a bullet mark.