The FBI's fib about the Mannlicher Carcano

[Bob Prudhomme]

A Mili Cranor classic about the accuracy of the alleged Oswald rifle:

https://kennedysandking.com/john-f-kenne...er-carcano

I don't know who Ms. Cranor consulted with on the ballistics in this article but, she is way off with her calculation of the bullet being 14 inches high at 100 yards, if the rifle is shooting 2.5 to 4 inches high at 15 yards.

On most rifles fitted with a telescopic scope, 15-25 yards out from the muzzle is right about where the "crossover" point is. What this means is that your scope is situated higher than the barrel, and is looking right at your target. As the bullet must follow a parabolic curve from the muzzle to the target, and the barrel is lower than the scope, the bullet will actually cross the "line of sight" twice; once just out from the muzzle and again at the target.





In other words, if the rifle is sighted in to hit a target accurately at 100 yards, it should also be accurate at 15 yards (see above diagram).

By my calculations, if the bullets were impacting 2.5 to 4 inches high at 15 yards, the scope was wildly out of adjustment, and the bullets would have been impacting at least 32 inches high at 100 yards.

If the rifle was shooting that high at 100 yards, I seriously doubt there was enough adjustment in that toy scope to correct for this, and it is an indication the gunsmith that mounted the scope on this rifle drilled the holes in the wrong place.This is an easy mistake to make and, considering the price of this rifle, can be forgiven. On a scope mounted in the normal fashion, one would simply exchange one of the bases under the scope mounts for a taller base. However, C2766 had a very unique scope mount, and I would like someone to tell me how this mount could be shimmed for vertical adjustment, as I don't believe it can be done without drilling new holes in the receiver.