"Higher velocities ALWAYs come from higher pressure."

I'm outstanded by how the pressure/velocity relationship is so misunderstood. Ghrame(sp) Wright goes a long way with his excellent pressure tests. The most interesting revelation came from the grooved bullets. Their lowered friction allowes them to move with less pressure - hence lower velocities, not more. Solids on the other hand will exit faster for exactly the opposite reason – more friction. North Fork goes into great detail on this subject.