9mm Power Pistol
I started with PP and then tried Win 231 and HP 38. The latter are so close they don't make much difference. I'm shooting them in a Hi-Point Carbine and SR-9, Llama Mini-Max. The leading with the Win 231 and HP 38 seemed worse. The PP seems to be a slower powder and works best in the carbine but I had to load toward the higher side to get consistent action in the blow-back style pistols.