I have a few pounds of Power Pistol I keep around for when I run out of Titegroup. I've loaded a few thousand rounds of 9mm with it in the past and it worked great, with my only complaint being it isn't a "low charge weight" powder. I have to use ~7.2 grains to get the velocity in my .40 I can get with about ~5 of Titegroup, but if I was loading 10mm, I would use PP so I didn't have a large volume of emptiness in the case.