Lost hit it on the head - assuming there *is* a hell, it is possible to project there.
However, according to my understanding, "hell" as it is described in the bible, as well as most other accepted texts - is a state of mind, so to speak.
Not to say there isnt a place where the Luciferic beings, and Lucifer himself do not reign, but traveling to these places couldnt be done through Astral Projection - or at least not 'normal' Astral Projection. As the Astral Plane is a plane in and of itself, though it's fairly reflective to this plane; as it's very closely bound to this plane. The planes where the Luciferic beings, and Lucifer himself reside are - theologically speaking - *VERY* far apart from the Astral Plane.
In short - is it possible? Theoretically, yes. Is it probable? or even plausible? No way in hell. (pun intended)
Happy studying
-Uncle Rusty
P.S. Note - all of this is from my own studying, and springs from my own beliefs and experience in these matters. If there's a fault in my understanding - it's my fault, of course, but there's no proving or disproving really, so accept my statements, or disregard them. No hard feelings if you think I'm nuts
