Cast is all I shoot in 9mm. I use an obsolete .38 Special Lyman mould that makes a 150 grain round nose bullet. I size to .358" but some guns will need .357" or possibly even .359" bullets for best accuracy. Best rule of thumb is to use the largest bullet that will allow a cartridge to chamber freely and function without problem. Shoot the softest bullet that does not lead for the velocity you want. This will almost always be the most accurate. Lots of powders, but I prefer Bullseye for my bullet.

This is all much easier if you're a bullet caster, but if you can find a commercial source that offers at least a couple or so alloy mixes of different hardnesses and diameters, you'll be okay. This does require some experimentation for best results. 9mm is not the easiest cartridge to work with if you're using cast bullets, but once you get everything right, it'll do about as well as anything else. Good luck-