I don't have anything to back up. You are the one claiming how a FMJ Carcano will behave after striking a skull. The burden is on you to establish that. I know of only one case study in which a FMJ Carcano bullet did strike a skull and that was the JFKA. It is a one of one case study. We have a badly fragmented FMJ Carcano bullet, the only one recovered from the limo following the devastating headshot. That bullet shows what can happen when such a bullet strikes a skull. Would every FMJ Carcano bullet fragment in that manner when striking a skull? Who knows? We have a very limited sample size. We have just one case to study.
As I understand it, DiMaio's book was a textbook speaking of ballistics in general, not the JFKA. If that is the case, there would be no reason for him to address how the Carcano bullet might behave when striking a skull. Since you apparently have that book, you should be able to tell us whether DiMaio even addressed the behavior of the fragmented Carcano bullet found in the limo.
This is yet another one of your dishonest juvenile dodges in which you once again hilariously dismiss the science of wound-ballistics testing. Obviously, you don't have a shred of evidence to back up your grasping fiction that WCC 6.5 mm FMJ bullets behave differently than other FMJ bullets, because then, among other things, you'd have to explain why the FMJ bullets in the Failure Analysis test did not even fragment after penetrating skull bone.
DiMaio was talking about the behavior of
all FMJ bullets, period. DiMaio certainly would have said something if the
millions of 6.5 mm FMJ bullets manufactured by the Western Cartridge Company behaved differently than other FMJ bullets, especially since tens of thousands of those bullets were still being used when he wrote the first and second editions of his book (first edition in 1985, second in 1999).
BTW,
WCC produced 4 million 6.5 mm FMJ bullets in 1954 alone.
You keep making false statements about the number of headshot wound-ballistics tests that have used WCC 6.5 mm FMJ ammo: the WC's test, Lattimer's test, and DeSalles' test, all of which failed to duplicate the behavior of the ammo that hit JFK's head. Are you ever going to explain why the x-rays of the test skulls in the WC's test show bullet fragmentation that looks nothing like that seen in the JFK autopsy skull x-rays, both in the number of fragments and in their distribution patterns?
And let me just remind you, again, that your side's leading wound-ballistics experts, Dr. Larry Sturdivan, has admitted that the bullets that Oswald allegedly used would never, ever have deposited a fragment from their cross-section on the outer table of a skull at or near the entry point.
Finally, I notice you said nothing about your gaffe that the distance a bullet travels is irrelevant to how it performs. This is so typical of you: you make a blundering, idiotic claim and then you either refuse to acknowledge your blunder when it is pointed out to you or you blame the blunder on some faulty source that you should have known better than to consult in the first place.