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Everything posted by Chris Davidson
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Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
James, I tend to agree with you. Throw in the convertible top support while viewing from the right side of the limo, and it creates a very difficult shot. chris -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
Elevation and the Triple Under Pass SS ReEnactment.mov -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
Doodling. I believe it's easier to imagine Jackie in the body position that Connally describes himself in, while being shot. West end. chris Connally.mov -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
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Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
Thank you Chris. Sorry to make you search for the info. I wrongly assumed that you had this information already. I just PM'd Pamela with my question. Tom Tom, We need the height from "street to the top of the back seat that you sit on". chris -
Landmarking the Back Wound
Chris Davidson replied to Robert Prudhomme's topic in JFK Assassination Debate
Does the blue line intersecting the bullet hole and chalk mark represent the same location in both photos? chris -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
No. Not above the ground -- above the floor. The chalk mark height above the ground would by 3 feet 5 inches or 41" PLUS the height of the floor above the ground. I do NOT know the distance from the floor of the JFK limo to the ground.Tom Tom, What little I could find. http://educationforum.ipbhost.com/index.php?showtopic=13098 chris -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
This was 90 micron powder loaded into a frangible bullet? I expected small buckshot... Would this powder even appear on an X-ray taken by portable equipment manufactured prior to 1963??? Tom I would imagine it would, Tom, although there is no reason to assume that a lethal frangible bullet in 1963, when they were still in the developmental stage, would be made from the identical materials as these ultra-modern frangible bullets. Below are two views of Italian issue M37 "Magistri" 6.5x52mm Carcano frangible bullets, manufacture date likely in the 1930's, although collectors have M37 cartridges with headstamps dated as late as 1953: Before you all get excited, thinking we've found the bullets that killed JFK, I should explain that this type of frangible bullet was designed as a "safe" bullet for shooting in indoor and urban ranges. One of the properties I neglected to mention about all frangible bullets is that they will also disintegrate to powder when they impact something hard like concrete, steel or rock; meaning there is no danger from ricochet. This feature, plus their incomparable stopping power, is making frangible bullets very attractive to urban law enforcement agencies. The M37 Magistri frangible range bullet was a very odd bullet indeed. As seen in the top photo, the copper alloy bullet jacket was made in two pieces (soldered together I believe though I am not certain), plus there was often a deep groove at the cannelure, seen just above the mouth of the cartridge in the top photo. This tells me that, on impact and penetration, there was a good possibility the bullet jacket would quickly be in three pieces. Consider the potential of this information when considering all of the WC's evidence regarding bullet jacket material recovered from the head shot. What is even stranger is the internal construction of this bullet. Just inside the nose of this bullet is a tiny pellet made from lead or "maillechort" (copper/nickel alloy). Behind that, the middle section of the bullet is made from compressed lead powder, the fineness of which I have been unable to determine. Behind that, the base of the bullet jacket was filled with sand. The M37 frangible bullet weighed only 108 grains (sand being much less dense than lead), compared to the standard Carcano FMJ bullet at 162 grains. To keep the velocity of the M37 bullet the same as the FMJ bullet, the gunpowder charge in the cartridge was reduced. As can be seen in the lower photo, the nose of this bullet is not complete, and the lead/maillechort pellet can be seen through the small opening. I am not sure of the purpose of this opening but, I am told the pellet served to break up the bigger jacket on impact, and to fracture the bullet's core into dust. God only knows what effect would be obtained by shooting this bullet into a skull or lung but, I believe drilling a tiny hollow point into the open nose of the M37 Magistri bullet would give us something quite similar to the hollow point frangible bullets seen in Chris' video. Robert, I like the above idea. The bullet speed is still bothersome in terms of an explanation. Hard to believe they missed his head and hit his back instead. If professionals did this, why not a direct head shot? Ideas??? chris -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
Everyone's in bed, and I can't do these measurements accurately without assistance.The only measurement I can take is from the floor to where the chalk mark would be on me while seated (I'm 1" shorter than JFK) is 3' 5" above the floor. So I'd say 3.27" is too low... Tom Tom, So the height you assign the chalk mark would be approx 3ft 6inches = 3.5ft = 42 inches above the ground? Would 3.56ft = 42.78 inches be within range? chris -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
Tom, Yes. How about a back wound at 3.27ft above the pavement. If this photo represented JFK in the limo, would the chalk mark appear to be 3.27ft above the ground? Remember, the top of JFK's head was measured at 52.78 inches above the ground. chris -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
My sentiments too. Here is a link to the entire video if interested: The clip I posted was the most comparable to a carcano. imo -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
Frangible test. frangible ballastic gelatin tests.mov -
More on the Rifle Scope
Chris Davidson replied to Robert Prudhomme's topic in JFK Assassination Debate
Chris, Actually he is drawing a simpler path than the official version. West is looking at him expecting the end result to be a hop-scotch variation. P.S. Since the WC were experts on tripods up on the 6th floor, Shaneyfelt felt right at home helping West with his theodolite. -
More on the Rifle Scope
Chris Davidson replied to Robert Prudhomme's topic in JFK Assassination Debate
Something to keep in mind. -
More on the Rifle Scope
Chris Davidson replied to Robert Prudhomme's topic in JFK Assassination Debate
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More on the Rifle Scope
Chris Davidson replied to Robert Prudhomme's topic in JFK Assassination Debate
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Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
http://forensicoutreach.com/the-falling-bullet-myths-legends-and-terminal-velocity/ Interesting analogy, just in terms of the speeds obtained from a free-falling bullet. SB_Pete's comment, ninth entry below article. I'm not insinuating the back wound was created this way. -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
https://spideroak.com/browse/share/JFKFILES/JFKVIDEOS Password: assassination Recreation from 6th floor SE corner: Queen Mary stabilized (not the cross-hairs), I have it traveling approx 13.6 mph then abruptly slowing to half that speed as it approaches the extant Z313 location. chris -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
But I do believe the shot may have come from the TSBD.) Sandy, One of Connally's wounds at the least. chris -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
Just to clarify, from Tom: "First shot struck tree limb, tumbled in flight, struck in base first attitude, and small 4.5mm lead protrusion out base of bullet sheared off and came out the anterior neck of JFK." -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
Another experiment. http://www.theboxotruth.com/the-box-o-truth-40-deflected-bullets-and-the-box-o-truth/ -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
Chris, I believe they were actually recreating a pivot point (location at which the rifle body is attached to the tripod, indicated by intersecting red lines) with a height of 26 inches. -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
The angled green line is exactly on the long axis of the moving bullet. From the point that the bullet exits the last branch until it disappears off screen, the bullet is at a 35 degree nose above the horizontal attitude and absolutely stable. Chris, Do you know the range of the shooter to the branches and to the target? In the dialog at the end of the clip it is stated that the bullet was deflected only about an inch from its intended course. He then says it would have continued on and hit the pavement. If it was only deflected an inch but would have hit the pavement, I have to wonder the distances they are using from rifle to branch, and branch to target. Tom Tom, It's not specifically stated, but using their remarks from a different segment, my guess would be approx 25yds. In another test, they measured the speed of the bullet at 2089ft per sec, 10ft past the muzzle. That bullet went through 36 inches of pine wood at what looks to be the approx 25 yard marker. chris -
Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
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Any prevailing theories on the back wound?
Chris Davidson replied to Sandy Larsen's topic in JFK Assassination Debate
The only footage I have that tries to replicate. https://spideroak.com/browse/share/JFKFILES/JFKVIDEOS Password: assassination chris