Translation: You have no clue how to explain the evidence I've presented, and you've run out of flimsy dodges and specious arguments.
Your howler that a 4-inch difference in the rear head entry wound's location is no big deal and does not matter will go down as one of the all-time gaffes in this forum. Not even the worst WC apologists have been so clueless and silly as to make that laughable argument. Did you just not study basic geometry in high school?
I should add that the 4-inch difference not only greatly affects the trajectory back to the firing point, but it also greatly affects the bullet's trajectory through the head and its exit point. Even someone with just a high-school-level grasp of geometry can easily discern this.
Way back in 1976, researcher Howard Roffman pointed out that the photos and x-rays of the test skulls used in the WC's head-shot wound ballistics test prove that not one of the FMJ bullets that hit at or near the EOP site created an exit wound even close to the location of the exit wound described and illustrated by the autopsy doctors. All the exit wounds included a large part of the bones under the face, which is exactly what you would expect from an FMJ bullet entering near the EOP at a downward angle of 15 degrees. Many other scholars have noted this contradiction, including Dr. David Mantik:
Then there is the matter of a shot from the sixth floor of the Texas School Book Depository (TSBD). WC’s ballistics expert, Dr. Alfred Olivier, used the Mannlicher-Carcano to shoot at human skulls. Firing from a position above and behind, he aimed at the low occipital entry identified in the autopsy report. This bullet blew out the right side of the face (Figure 2). (JFK Assassination Paradoxes, 2022, p. 3)Of course, the exit wounds from the WC test skulls also bear no resemblance to the revised version of the exit wound described and illustrated by the HSCA's medical panel (FPP). This is one of the problems that Howard Donahue identified with the FPP's version of the exit wound. Many other scholars have also highlighted this contradiction.
The unsolvable trajectory problem posed by assuming the rear head shot came from the sixth-floor window is why Larry Sturdivan, who accepts the EOP site, has had to float the specious theory that after the bullet entered the skull, it somehow, someway suddenly veered sharply upward, something that not one of the FMJ bullets in the WC's test did. This is also why the WC's experts could only get the EOP-site's trajectory to "work" by assuming that JFK's head was tilted well over 50 degrees forward when the bullet struck.
The WC's test skulls were actual human skulls that were filled with ballistics gelatin and that had gelatin on top of the outer table of the skull to simulate the soft tissue covering human skulls. Dr. Alfred Olivier, who conducted the test, explained this to the WC:
Dr. OLIVIER. Human skulls, we take these human skulls and they are imbedded and filled with 20 percent gelatin. As I mentioned before, 20 percent gelatin is a pretty good simulant for body tissues.
When I say 20 percent, it is 20 percent weight of the dry gelatin, 80 percent moisture.
The skull, the cranial cavity, is filled with this and the surface is coated with a gelatin and then it is trimmed down to approximate the thickness of the tissues overlying the skull, the soft tissues of the head. (5 H 87)Howard Roffman was the first to point out that the bullet fragmentation seen in the two released x-rays of the test skulls looks nothing like the bullet fragmentation seen in the JFK autopsy skull x-rays:
These x-rays depict gelatin-filled human skulls shot with ammunition of the type allegedly used by Oswald. They were classified by the government and remained suppressed until recently; they are printed here for the first time ever. What they reveal is that Oswald's rifle could not have produced the head wounds suffered by President Kennedy. The bullet that hit the president in the head exploded into a multitude of minuscule fragments. One Secret Service agent described the appearance of these metal fragments on the x-rays: "The whole head looked like a little mass of stars." The fragmentation depicted on these test x-rays obviously differs from that described in the president's head. The upper x-ray reveals only relatively large fragments concentrated at the point of entrance; the lower reveals only a few tiny fragments altogether. This gives dramatic, suppressed proof that Oswald did not fire the shot that killed President Kennedy. (Photo: National Archives) (Presumed Guilty, 1976, photo pages 8 and 9, chapter 5)