In the Alliant line, I don't care for the way Unique meters and prefer Power Pistol instead. The Power Pistol meters well through my Uniflow. The PP powder is a tad slower burning than Unique, so you will use more powder per round and generally get higher velocities and pressure. I will mention that some folks don't care for the flash from this powder. I get good groups with Power Pistol and Berrys 115 gr. RN plated bullets.
For target loads, I like W-231, which is faster burning than AutoComp, with 124gr. Berrys bullets. I haven't tried AutoComp yet.
A lack of planning on your part does not necessarily constitute an emergency on my part.