You're welcome, mrneko.
Yes, the Bullet behavior can have parabolic trajectory, just the way Physics based ones do, by adjusting its gravity and speed.
But we don't always need the Bullet behavior, as the trajectory can be calculated without one as seen on the following threads.
This one has the prediction line you're looking for and it's not using Physics.
R0J0hound is the one you should seek for help in this matter, as I learned everything I know on the topics of parabolic trajectory from R0J0hound's great teachings.