I am glad that you asked.
It took 61 cm (24 inches) of ballistic gel before the bullet started to tumble.
I don't believe JFK's neck was anywhere near that width.
According to the WC - the bullet that transited JFK struck no bone and left a very small circular hole in the throat - so why would it tumble between both men?
How do you know the bullet didn't strike JC at a tangent hence leaving a larger hole?
Dr. Robert Shaw elongated the back wound on JC by tissue debridement. He also corrected his official report which contained an error.
So much for a tumbling bullet.
Firstly, ballistics gel is good and all but we are talking about a bullet that hit a relatively solid object going through the neck and then emerging back into the air.
Lattimer recreated the neck with a neck and then put a card up in Connally's position to see if there was any tumbling and 5 out of 6 test bullets tumbled.
![](https://i.postimg.cc/DyZRL4b8/tumbling_carcano_lattimer_zps56ahhtdp.jpg)
Secondly we know where Connally was hit and that was on the virtually flat of his back next to his armpit.
![](https://www.history-matters.com/essays/jfkmed/BigLieSmallWound/gregory1.gif)
And we know the path went down and out just below his right nippple.
So we are left with just working out the maths.
1. If a bullet tumbles it's still moving in one direction and when this tumbling bullet strikes Connally it will make a keyhole in that shape.
2. If a bullet strikes at an oblique angle then we can create the same dimension but how do we account for the angles either he was shot from a blimp and the bullet magically changed direction as it passed through his body or what?
![](https://i.postimg.cc/WbHCnpMS/tumbling_carcano_b_zpspbph3ibg.jpg)
Geez Louise, it looks like the "tumbling bullet theory" gets to live another day, but do try again and next time bring your "A" game, K?
JohnM