Another nod for 231 - yes it's dirty, but it's relatively cheap to load, meters well through the Lee measure, any resonable load for 9mm will overflow if you double charge (which is a very good thing when using a progressive like the Lee, with which you may have to scr*w while loading) and is amazingly consistant. Don't forget to get a factory crimp die and run all your rounds through it after they come off the progressive - makes a world of difference.