JFK Assassination Forum

It's like Corbett's suggestion that the bullet starts rotating 1000 per second as soon as it leaves JFK's throat!

I never put a number on the rate of tumble, only that the bullet would tumble upon leaving JFK's throat. The Haag team showed through experiments that a Carcano bullet would predictably tumble upon exiting from ballistic gel. I don't know how many experiments they did or how consistent the rate of tumble would be. 1000 rpm might be a ballpark figure but I have no way of knowing that.

Somewhere I have a copy of Posner's Cased Closed but I can't find it right now. He dealt with this issue. I don't think he was the first to propose a tumbling bullet but it was the first time I had seen it.

You just accused someone else of being an amateur??? My irony meter is starting to smoke. I think you fried the motherboard with that statement.

Actually, my point was that if someone is falsely claiming to be an expert when they haven't published a single book or article on the case and don't even maintain a website on the case, they shouldn't spew extreme attacks on genuine experts and respected researchers, and they should especially avoid going so far off the deep end as to claim that anyone who disagrees with them suffers from mental illness.

Just what do you think you have accomplished over the past 35 years of pontificating on the JFKA. Your BS hasn't improved one iota. It has just become more voluminous. 50 years from now, nobody will even know or care about your efforts. For that matter, few people even care now.

You really are a rude, petty, angry person, aren't you? You wouldn't know valid research from a hole in the ground. You are one of the most poorly read, biased, and unserious WC apologists on the Internet. I have already caught you in so many inexcusable gaffes and blunders that I've long since lost count of them, but since you never admit when you're wrong, you just keep on plugging away anyway.

My take is Gov. JBC was struck by a straight, unimpeded shot from the TSBD6 sniper window, or close thereto, and that is also the sentiment of his surgeon, Dr. Robert Shaw. 

Mr. SPECTER - As to the wound on the back of Governor Connally, was there any indication that the bullet was tumbling prior to the time it struck him?
Dr. SHAW - I would only have to say that I'm not a ballistics expert, but the wound on his chest was not a single puncture wound, it was long enough so that there might have been some tumbling.

A separate shot with a nose on impact would be result in a different set of wound descriptions. The bullet was tumbling to produce the wounds described by DR Shaw. SBT is the only answer.

The hole in the back of JBC's shirt proves you are wrong. You can't just ignore this inconvenient evidence.
The hole is entirely consistent with a nose-on impact at an angle and entirely inconsistent with a tumbling bullet.
And is it just me who finds the idea that the bullet would have continued 'tumbling' as it passed through JBC's torso ridiculous.
It continues rotating as it smashes through flesh and bone??
Where is all this rotational energy coming from?
It's like Corbett's suggestion that the bullet starts rotating 1000 per second as soon as it leaves JFK's throat!

I agree the bullet could deviate from its course as a result of passing through JBC and exit his chest on a different trajectory.
When it strikes his radius the bullet fragments. Tiny fragments are spread throughout his wrist (as shown in the pre-op X-Rays). A Slightly larger fragment passes through his wrist (explaining the "slit-like" exit wound in the crease of his wrist and the lack of a bullet hole through his wrist). But the largest fragment, the majority of the bullet, is deflected down into his leg after which it falls to the floor of Trauma Room 2 as JBC is being transferred from his stretcher to the operating table.

To me, jiggle analysis of the Z-film is the best way to determine when the single bullet struck. All of the calculations below are based on approximations because that is sufficient for this exercise.

We can start with the headshot because that is the most obvious to pinpoint. The distance from the sniper's nest to JFK's head was 88 yards(264 feet). At an average velocity of 2000 fps, it would have taken 0.132 seconds for the bullet to reach JFK's head. Each frame of the Z-film covers 0.0564 seconds. That works out to approximately 2.34 frames of the Zapruder film meaning the bullet would have been fired in the Z310-311 window. There was an obvious camera jiggle and Z318, meaning there was a lag time of 7-8 frames from the time the bullet was fired to the time Zapruder reacted to the muzzle blast.

Since the distance from the rifle to Zapruder's ears was a constant for all three shots, we should expect a similar lag time for all 3 shots. There is an obvious jiggle at Z227. Applying the same 7-8 frame lag time between the shot and the reaction, that would indicate Oswald fired the single bullet in the Z219-220 time frame. The distance from the rifle to JFK at that time was roughly 190 feet. Using the same estimated average velocity of 2000 fps, it would have taken .095 seconds for the bullet to reach JFK's back. That is 1.68 frames so a bullet fired at Z219-220 would likely have struck in he Z221-222 time frame. That would have been 2-3 frames before JBC's jacket bulged out and 4-5 frames before both JFK and JBC flipped their arms upwards. This all seems very reassonable to me.

To me, jiggle analysis of the Z-film is the best way to determine when the single bullet struck.

It may be the best way for you but it's not in general.
A forensic analysis of the reactions of both JFK and JBC in the Z-film tells us exactly when the bullet passed through both men - z222/223
As for Jiggle Analysis...Sitzman makes the point that the sound of the shots was distant, not enough to make them jump. She often makes the point that if any of the shots would have come from the GK they would have jumped "sky-high". The thing that startled her was a coke bottle being smashed by a young couple fleeing the scene just to her right.
Jiggle Analysis is meaningless. Zapruder was an old man with vertigo stood on a narrow plinth. It's amazing how smooth the shot is considering.

Education Forum has not been paying it's bills and the "owner" James Gordon just pretty much disappeared. And Envision who hosts the site will not let anyone other than James Gordon pay the bills!

So Education Forum went Poof! as of June 20, 2026 and it will stay that way until James Gordon reopens it ... assuming of course that James Gordon is actually alive.