09-03-2014, 12:57 AM
David
You have a habit of taking something very simple and complicating it to the point of ridiculousness. You may be doing this unwittingly so I won't hold it against you.
Yes, we are assuming CE 399 was fired from C2766. Even the FBI would not be so stupid as to try to plant a bullet from a different rifle.
This is so simple, even my wife caught on to what I am looking for.
If the rifling mark made it 1/4 the way around the bullet in a 1 inch lengthwise space of the bullet, it is likely that, if the bullet travelled 4 inches down the barrel, the bullet would make one complete revolution of spin. We would describe the rate of twist as 1:4, or one complete revolution of spin in 4 inches.
However, we do not know the length of a 6.5mm bullet as made by the Western Cartridge Co., although it may be similarly close to the Italian military bullet, which measured 1.238 inches in length. It will require some degree of skill to estimate the length of the bullet in the photo or, on the other hand, it may not be necessary, as the number we come up with will be expressed as a ratio. Even more difficult is estimating how far around the circumference of the bullet the rifling mark seen in the photo has travelled.
P.S. Read the thread I directed you to and you will understand what I am trying to do here. There is some doubt that all Carcano rifles made from 1938 on, which reputedly all had standard twist rifling, actually did have standard twist rifling and were not, in actuality, merely made from cut down M91 long rifle barrels cut with progressive twist rifling, due to manufacturing strains placed on Italian armes makers as the war turned against Italy. If it turned out we could prove C2766 was one of these, the resulting loss of accuracy would completely disqualify it as being capable of the JFK assassination shooting.
You have a habit of taking something very simple and complicating it to the point of ridiculousness. You may be doing this unwittingly so I won't hold it against you.
Yes, we are assuming CE 399 was fired from C2766. Even the FBI would not be so stupid as to try to plant a bullet from a different rifle.
This is so simple, even my wife caught on to what I am looking for.
If the rifling mark made it 1/4 the way around the bullet in a 1 inch lengthwise space of the bullet, it is likely that, if the bullet travelled 4 inches down the barrel, the bullet would make one complete revolution of spin. We would describe the rate of twist as 1:4, or one complete revolution of spin in 4 inches.
However, we do not know the length of a 6.5mm bullet as made by the Western Cartridge Co., although it may be similarly close to the Italian military bullet, which measured 1.238 inches in length. It will require some degree of skill to estimate the length of the bullet in the photo or, on the other hand, it may not be necessary, as the number we come up with will be expressed as a ratio. Even more difficult is estimating how far around the circumference of the bullet the rifling mark seen in the photo has travelled.
P.S. Read the thread I directed you to and you will understand what I am trying to do here. There is some doubt that all Carcano rifles made from 1938 on, which reputedly all had standard twist rifling, actually did have standard twist rifling and were not, in actuality, merely made from cut down M91 long rifle barrels cut with progressive twist rifling, due to manufacturing strains placed on Italian armes makers as the war turned against Italy. If it turned out we could prove C2766 was one of these, the resulting loss of accuracy would completely disqualify it as being capable of the JFK assassination shooting.
Mr. HILL. The right rear portion of his head was missing. It was lying in the rear seat of the car. His brain was exposed. There was blood and bits of brain all over the entire rear portion of the car. Mrs. Kennedy was completely covered with blood. There was so much blood you could not tell if there had been any other wound or not, except for the one large gaping wound in the right rear portion of the head.
Warren Commission testimony of Secret Service Agent Clinton J. Hill, 1964
Warren Commission testimony of Secret Service Agent Clinton J. Hill, 1964