Far from pristine? Are you serious??
That bullet didn’t pass through anyone, not even ballistic gel.
You need to stop reading tin foil hat sources. It’s been examined by ballistic experts many times and the shot has been repeated in numerous forensic tests with very similar, sometimes near identical results.
Read Posner’s book and Vincent Bugliosi’s book
Reclaiming History covers this in detail and destroys the so called magic bullet conspiracy theories.