The 6.5 Italian cartridge used a 162 grain full metal jacket bullet in it’s military loading, and had some serious sectional density figures. I won’t speculate on any conspiracies, but that bullet/cartridge combination would easily penetrate a human head and keep right on going. And being a full metal jacket, the exit wound would probably look much like the entrance.
True, but there was no exit wound from the bullet fired from the Grassy Knoll which surgeons removed.
Not in the brain pan. The 6.5mm (.264) Carcano projectiles can be pulled and loaded in the W-W .264 mag for 2900 fps. And Similarly into the 6.5 Rem. Mag, although that cartidge was not invented ‘til 1966. There is also the 6.5-06, a wildcat cartridge that could accomodate Carcano 6.5 projectiles at quite high velocities. The suspected culprits certainly had the means to load Carcano 6.5 projectiles into a number of cartridges. Makes sense iif you want to stick it all on a “patsy” to have all shooters firing the same projectile. I also believe that Oswald was one of several shooters.