What happened to the bullet?
It wasn't there at autopsy.
Nor was the bullet that entered the "back" of the President and is alleged to not have transited the neck.
These are peculiar bullets. Don't penetrate deep and fall out.
These silly, disingenuous questions have already been answered. They were answered in the 1990s and have been answered again and again many times since then.
If you want to talk about "peculiar" things, how about the EOP-to-right-eye fragment trail described in the autopsy report? Where is it? It's not on the extant x-rays. So where did it go?
How about the high fragment trail? Why didn't the autopsy doctors say anything about it in the autopsy report? Surely Finck and Ebersole, at least, would not have committed such a blunder as to describe the high fragment trail as running between the EOP and the right eye.
How about 6.5 mm object? The autopsy report says nothing about it. (Of course, we know now--and I mean
know--that the object was planted on the x-ray; we even know how it was done.)
How about the cowlick entry site? The autopsy doctors said the entry site was 4 inches lower, just above the EOP. Were they blind? Ah, but the cowlick entry site does not appear on the skull x-rays. All three of the ARRB's forensic experts confirmed this, and a whole bunch of other doctors have subsequently confirmed it. Oops, but the EOP site could not have been hit by a bullet fired from the alleged Oswald window.