This is how the rifle was gotten into the building

[Thomas Graves]

Let's see Trojan have his own head squished to the degree that the butt end of Ce399 was squished and call that 'pristine'

In all fairness, didn't he say "pristine" in like ... quotation marks?

--  MWT 

[Walt Cakebread]

What's with the "sucka" bit, punk? (At least you didn't put it in all caps this time.)

Uhh, well, regarding the one that fragmented and the one that didn't, I guess the Z-313 bullet was travelling about 1900 feet-per-second when its rounded point struck JFK's skull, causing both of them to break apart, whereas the CE-399 bullet was traveling about 1700 feet-per-second when it's rear third or-so sideswiped Connally's fifth rib, i.e., travelling fast enough to do that amount of damage by its tumbling motion, and fast enough for some of the lead core to be extruded out the back (with 2.1 grains of it lost), but not quite fast enough to cause it to fragment?

Beats the heck out of me.

--  MWT 

I guess the Z-313 bullet was travelling about 1900 feet-per-second when its rounded point struck JFK's skull, causing both of them to break apart,

The salient point ...."I GUESS".....   And obviously your guess isn't based on knowledge of ballistics...... Because the idea that a human skull would cause a COPPER  jacket on a FMJ bullet to break apart is absurd. 

Copper has a high tensile strength and the COPPER jacket would not have shattered.

[Bill Chapman]

In all fairness, didn't he say "pristine" in like ... quotation marks?

--  MWT 

In all fairness to whom? CTers are the ones claiming CE399 as being 'pristine'

[Thomas Graves]

In all fairness to whom? CTers are the ones claiming CE399 as being 'pristine'

Pristine, or "pristine"?

--  MWT 

[Bill Chapman]

I guess the Z-313 bullet was travelling about 1900 feet-per-second when its rounded point struck JFK's skull, causing both of them to break apart,

The salient point ...."I GUESS".....   And obviously your guess isn't based on knowledge of ballistics...... Because the idea that a human skull would cause a COPPER  jacket on a FMJ bullet to break apart is absurd. 

Copper has a high tensile strength and the COPPER jacket would not have shattered.

'the idea that a human skull would cause a COPPER  jacket on a FMJ bullet to break apart is absurd'
The idea that the human skull wouldn't cause an FMJ bullet to break apart is absurd

'obviously your guess isn't based on knowledge of ballistics'
Neither is yours

These are the guys who have knowledge of ballistics:

Gunshot wound characteristics
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5807523/

[EXCERPTS]

2. Entrance wound bone damage (After DiMaio [8])

The bone of the cranial vault is made up of outer and inner cortical tables joined by thin cancellous bone (the Diploë) [12, p673]. The ‘typical’ appearance of an entry wound is that of a ‘broadening cone’ [12, p674] or crater [6, p261]. This is described as ‘internal beveling’ [8]. In a review of the skeletal remains of 21 gunshot victims, Quatrehomme and İșcan [13] found internal beveling in the bone entry wounds of 20 skulls but noted external beveling in one.


4. Additional fractures (after Karger [9])

The bony injury seen may be complicated by further fractures. Karger [9, p151] describes how secondary radial fractures are induced by the bullet’s impact and originate at the entry and exit sites. Karger also describes how the brain is vulnerable to cavitation [9, p149] but the intact skull does not allow expansion, resulting in high pressures within the cranial cavity. If the overpressure exceeds the skull’s capacity to elastically extend, indirect concentric fractures result. Sufficiently high pressures will result in fractures combining to produce an ‘explosive’ type of injury [6, 9, 11, 14].

-------------------

Internal bevelling/HSCA


The Medical Evidence
https://mcadams.posc.mu.edu/medical.htm

[EXCERPT]

When a bullet penetrates the skull bone, it will leave a small hole on the side from which it enters, and a larger dished-out crater on the side that it exits. The existence of beveling of the bone of Kennedy’s skull allowed the autopsists — and later panels of forensic pathologists — to establish that the bullet that hit Kennedy in the head entered from behind, with at least one large fragment exiting toward the front. See JFK Exhibit F-61, from the House Select Committee on Assassinations.

[Walt Cakebread]

'the idea that a human skull would cause a COPPER  jacket on a FMJ bullet to break apart is absurd'
The idea that the human skull wouldn't cause an FMJ bullet to break apart is absurd

'obviously your guess isn't based on knowledge of ballistics'
Neither is yours

These are the guys who have knowledge of ballistics:

Gunshot wound characteristics
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5807523/

[EXCERPTS]

2. Entrance wound bone damage (After DiMaio [8])

The bone of the cranial vault is made up of outer and inner cortical tables joined by thin cancellous bone (the Diploë) [12, p673]. The ‘typical’ appearance of an entry wound is that of a ‘broadening cone’ [12, p674] or crater [6, p261]. This is described as ‘internal beveling’ [8]. In a review of the skeletal remains of 21 gunshot victims, Quatrehomme and İșcan [13] found internal beveling in the bone entry wounds of 20 skulls but noted external beveling in one.


4. Additional fractures (after Karger [9])

The bony injury seen may be complicated by further fractures. Karger [9, p151] describes how secondary radial fractures are induced by the bullet’s impact and originate at the entry and exit sites. Karger also describes how the brain is vulnerable to cavitation [9, p149] but the intact skull does not allow expansion, resulting in high pressures within the cranial cavity. If the overpressure exceeds the skull’s capacity to elastically extend, indirect concentric fractures result. Sufficiently high pressures will result in fractures combining to produce an ‘explosive’ type of injury [6, 9, 11, 14].

-------------------

Internal bevelling/HSCA


The Medical Evidence
https://mcadams.posc.mu.edu/medical.htm

[EXCERPT]

When a bullet penetrates the skull bone, it will leave a small hole on the side from which it enters, and a larger dished-out crater on the side that it exits. The existence of beveling of the bone of Kennedy’s skull allowed the autopsists — and later panels of forensic pathologists — to establish that the bullet that hit Kennedy in the head entered from behind, with at least one large fragment exiting toward the front. See JFK Exhibit F-61, from the House Select Committee on Assassinations.

Yer FOS Chappie.....  Copper is one of the most malleable of metals.....It does not shatter or disintegrate when it is used as a jacket for the lead core of a bullet UNLESS the nose of the bullet isn't covered by the copper jacket.   But as in the case of the FULL METAL JACKET  160 grain Carcano bullet the copper jacket covers all but the base of the projectile..      Yer so FOS that you will argue that CE 399 passed through many bones that are harder and more dense than a human skull but THAT  FULL METAL JACKETED bullet remained nearly pristine.     Yer not the sharpest knife in the drawer are ya, Chappie.?? 

[Thomas Graves]

Yer FOS Chappie.....  Copper is one of the most malleable of metals.....It does not shatter or disintegrate when it is used as a jacket for the lead core of a bullet UNLESS the nose of the bullet isn't covered by the copper jacket.   But as in the case of the FULL METAL JACKET  160 grain Carcano bullet the copper jacket covers all but the base of the projectile..      Yer so FOS that you will argue that CE 399 passed through many bones that are harder and more dense than a human skull but THAT  FULL METAL JACKETED bullet remained nearly pristine.     Yer not the sharpest knife in the drawer are ya, Chappie.??

Walter,

Do round-point, 160 grain, full-metal-jacket bullets NEVER fragment when striking a male human skull at about 1900 feet per second from a slightly elevated firing position?

This one did.

--  MWT