.......... so what’s the correct term?
Bullets follow a parabolic curve so there are two point blanks, the first is where the trajectory of the rising bullet intercepts the sightline and the second where the descending bullet once again crosses your sightline
Which is why we don't have our scopes parallel with our barrels.That's assuming the rifle is aimed above the horizontal in the first place, though.
A bullet fired horizontally will only ever drop due the effects of gravity.