In my opinion it's just a matter of word choice, however, when I think about it I guess astral projection defines the act of actually "projecting" (which is sort of a very crude way of describing a complex phenomenon) while astral travel, on the other hand, defines the act of traveling or exploring the astral realms.
Semantics is always a real problem when you're dealing with the "metaphysical".
By the way Netwire, welcome to the forums! By the way, while there's absolutely nothing wrong with asking such a question here in the astral chat room, you might get more responses for a post such as this in the actual OBE thread. Either way, there's plenty of knowledgeable people here and most of us get a long just splendidly, as long as we're not discussing the war and other political issues.
Ciao!
I was wondering if anyone could explain the diffrence between astral travel and astral projection.