Thanks for some useful information. So if I’m understanding correct  a Z313 fragment could have had a velocity as high as 800 ft/ sec and still strike the curb if the fragments angle after exit from JFK skull was much more upward than the minimum angle required to go above the windshield.

Only question I have is how probable it is that  a fragment  deflects upward more than 45 degree after exiting the skull in order to have a steeper parabolic arc that shortens the horizontal distance traveled to coincide hitting the curb at the 800 ft/sec more  vertical strike angle of 45 degree or greater?

If it’s reasonable probable a fragment could deflect upward more than 45 degree upon exiting the skull at 800 ft/sec then I think the problem is finally solved. 

The Loeffler memo was part of the documentation relating to the chain of evidence for the alleged stretcher bullet, CE 399. At this very time, the FBI was trying to find out about the bullet that had been reportedly found on a stretcher at Parkland Hospital in Dallas. Keep in mind that this memo was written on 11/22/63.

Loeffler begins the one-page memo by noting that O.P. Wright was contacted regarding "the present location of the bullet that was taken from the body of Governor Connally." Now, come on, folks. This is clearly, undeniably a reference to the stretcher bullet. This becomes even more obvious with Loeffler's next sentence: "Mr. Wright said he had given instructions to his supervising nurse to preserve the bullet."

Then, Loeffler mentions that Wright advised that some fragments were found in Connally's wrist and were turned over to Texas highway patrolman Nolan. Loeffler next says that Wright assumed that Nolan would take the bullet to the state lab in Austin.

So, we can either believe that Loeffler somehow thought the stretcher bullet was really just the wrist fragments, even though he had just referred to "the bullet" twice, or we can make the more logical assumption that Loeffler simply reverted to referring to the stretcher bullet when he said Nolan would take the bullet to the state lab. The focus of the memo was the location of the stretcher bullet, not the wrist fragments.

If Loeffler thought "the bullet" was the wrist fragments, why did he use the term "bullet" at all in the memo? Why didn't he simply explain that "we thought that a bullet had been removed from Connally's body, but it turns out that only some fragments were removed from his wrist"?

Marsh was cantankerous. He avoided getting involved in lengthy debates on any subject here. He was never wrong about anything.

My hand to eye coordination is terrible. I am not good at golf at all. My game improves with each beer consumed though.