I’m still with the Z224 being a bullet that hit JC. But I’m not at all sure about the wrist wound occurring at that point because of the odd position JC would have to be in holding his hat upside down with his right hand over the top of his left leg such that the bullet could go thru the top of his right hand at the wrist, exit the base of the palm and into his left inner thigh without having gone thru the hat.
CE399 had no damage deformation to the nose of the bullet and it was only slightly deformed. It had a very dubious chain of custody and much confusion about where it was found and what the bullet looked like (pointed vs ball nosed)
The conventional LN explanation for no damage to the nose of the bullet is because it was spinning end over end as it entered the top of JCs right hand and it struck the wrist bone backwards. Thus only lead and no copper traces left in the wrist.
Whether the bullet went thru nose first or end first, there should have been some small trace of copper metal left in the hand along with the small traces of lead.
Since only apparently trace amounts of lead ( flakes) were left in the wrist then an alternative explanation. must be that the wrist was struck by a lead fragment rather than a whole intact FMJ bullet.
The 2 alternative (LN) possibilities:
A. Andrew Masons Z270 shot where the bullet that skews thru JCs chest and rib cage at the more severe angle fragmented the bullet and some lead was sheared off and went thru JCs right hand as it was up against his chest holding the hat.
B. The SBT modified such that a Z313 fragment went thru JCs right hand while he leaned back into Mrs.C.
If neither of the above nor the conventional SBT are satisfactory then IDK
