I'm going to respectfully disagree with the poster that is concerned about lead bullets causing problems in the 9mm with leading. Many times hard bullets cause more leading then they prevent, bullets cast from medium hard alloy tend to fill the barrel better on ignition, this is more important in some 9mms that have poly rifling or some such. Bullet fit is more important then bullet hardness when it comes to leading the barrel. Hard cast bullets that are not a good fit, will lead up a barrel quick, this will be made worst by the hard "shipping lubes" used by commercial casters, which are used to keep bullets from becoming messy during shipping and do nothing for the trip down the barrel. If unsure about this last point....check out some fired bullets recovered down range, they may still be full of hard lube, and have had no effect on keeping the barrel lead free.
There is great variation in bore dia.'s for the 9mm as they are produced all over the world, some fellow shooters have reported bores requiring bullets as big as .358", others have chambers requiring .354" bullets. Nail these dimensions down for your pistol, get proper sized cast bullets, and shoot accurately,problem free, and save a bundle of money over other bullets.