Look at the example I gave.
The person depicted in that link does not get his fingers under left or right to lift the brain out, he pulls it back from the forehead until it clears the sawn part of the frontal bone, rotates it backwards and upwards (presumably to access the stem for cutting) and then lifts it clear. Having a large part of the skull case missing on the right side would have made it easier to remove the brain, not moire difficult as you are claiming.
4-5 inches
1. Which is it? Four inches, five inches or somewhere in between. You will have to be more precise
2. How do you recocile you view with that of the Ramsay Clark panel, which said
"The majority of these fragments lie anteriorly and superiorly. None can be visualized on the left side of the brain and none below a horizontal plane through the floor of the anterior fossa of the skull. On one of the lateral films of the skull, a hole measuring approximately 8 mm in diameter on the outer surface of the skull and as much as 20 mm on the internal surface can be seen in profile approximately 100*1 mm above the external occipital protuberance. The bone of the lower edge of the hole is depressed. Also, there is, embedded in the outer table of the skull close to the lower edge of the hole, a large metallic fragment which on the anteroposterior film lies 25 mm to the right of the midline. This fragment as seen in the latter film is round and measures 6.5 mm in diameter immediately adjacent to the hole on the internal surface of the skull, there is localized elevation of the soft tissues. Small fragments of bone lie within portions of these tissues and within the hole itself. These changes are consistent with an entrance wound of the skull produced by a bullet similar to that of exhibit CE 399. The metallic fragments visualized within the right cerebral hemisphere fall into two groups. One group consists of relatively large fragments, more or less randomly distributed. The second group consists of finely divided fragments, distributed in a posteroanterior direction in a region 45 mm long and 8mm wide. As seen on lateral film this formation overlies the position of the coronal suture; its long axis, if extended posteriorly, passes through the above-mentioned hole. It appears to end anteriorly immediately below the badly fragmented frontal and parietal bones just anterior to the region of the coronal suture. The foregoing observations indicate that the decedent's head was struck from behind by a single projectile. It entered the occipital region 25 mm to the right of the midline and 100 mm above the external occipital protuberance. The projectile fragmented on entering the skull, one major section leaving a trail of fine metallic debris as it passed forward and laterally to explosively fracture the right frontal and parietal bones as it emerged from the head. In addition to the foregoing, it is noteworthy that there is no evidence of projectile fragments in the left cerebral tissues or in the right cerebral hemisphere below a horizontal plane passing through the floor of the anterior fossa of the skull. Also, although the fractures of the calvarium extend to the left of the midline and into the anterior and middle fossa of the skull, no bony defect, such as one created by a projectile either entering or leaving the head, is seen in the calvarium to the left of the midline or in the base of the skull. Hence, it is not reasonable to postulate that a projectile passed through the head in a direction other than that described above."
*1 "approximately 100 mm" is not 4 to 5 inches (which would be 100 to 125mm).
[qimg]https://www.dropbox.com/s/522kort2fbpaepm/JFK_posterior_head_wound.jpg?raw=1[/qimg] [qimg]https://upload.wikimedia.org/wikipedia/en/thumb/1/16/JFK_skull_trajectory.jpg/330px-JFK_skull_trajectory.jpg[/qimg]
1. Check the position I have marked as EOP. (compare with the right ear and check your own EOP position on your own head. You will see that I have that correct.
2. Note that I have marked off the EOP and the entry wound with the metric ruler in the photo.... is 8 cm (80mm)
3. Keep in mind that we are looking at something flat in the photo, whereas the measurement is actually around the curvature of the skull, making it slightly longer than 80 mm.
Therefore "a hole measuring approximately 8 mm in diameter on the outer surface of the skull/.../can be seen in profile approximately 100 mm above the external occipital protuberance." seems to be fairly reasonable to me.