It's my understanding that the "1st Shot" is alleged to be the "Lost Bullet" that also resulted in the curb strike/Tague cheek scuffing. The ding in the chrome stripping would therefore be the aftermath of shot #3/Head Explosion.
Holland's ricochet theory re Tague is of course impossible, except that Holland was correct re a ricochet at pseudo Z105 (remnant slug made hole in floor of limo next to Connolly, brass jacket broke into 2 pieces found in limo, lead splatter hitting jfk in the head).
The remnant AR15 slug at Z313 veered & cracked the windshield, a giant veer, but possible.
If Oswald had fired at Z313 then the large veer needed to make the crack in the windshield would be impossible.
The doubly large veer needed to make the dent would be doubly impossible.