+1 on Flslim's post on both powders, I like the versatility and price of power pistol, I load my 9mm, .40cal (glock27), 45acp, and sometimes 44 magnum. Different manuals have different starting loads and max loads invest in some reloading manuals atleast 3 so you can reference back and forth between manuals. Hornady7th ed.starting load for power p. is 4.6gr and lyman 49th ed. Is 6.?(dont have my books in fromt of me at the moment) so I wasnt forsure what to start with so I started at 6.0 and worked my way up from there.. My 27 likes 6.6 - 6.7 for a sub compact blaster!