David Stone has a move (published in one of his lecture notes, sorry I don't remember which one) in which he is doing an in-the-hands riffle shuffle, and shoots one card horizontally off the bottom of the deck. He's pretty accurate, and can send one across a small room.
I'm not so skilled with it, myself.
Also Martin Lewis has a move (described in Cards as Weapons) in which you hold a deck vertically, in sort of a Biddle Grip, thumb on bottom edge, middle through pinky fingers on top, and you use your index finger to pull the back card down, cant it slightly counter-clockwise, and release it. It spins straight up into the air (or at an angle if you hold the deck at an angle).