The Zapruder film makes the distance appear more than it really is, not that it was not a skilled shot.
He was standing right in the SE doorway/porch of the SBD best I can tell.
“He was standing right in the SE doorway/porch of the SBD best I can tell.”
There was a guy photographed in that location that was a dead ringer for Oswald, however it wasn’t Oswald. That gentleman has been located, and his identity verified.