This thought popped into my head tonight and I was wondering if we really needed to bother annealing the 9mm cases that we are turning into 40 cal bullets. It is only going up about .012" or so.. we are barely bumping the size up that much.. so I took a tumbled 9mm brass, seated a core, applied a touch of lube and put it on the press and formed the bullet... and it didn't have any more or less resistance than the annealed case 40 cal cases I made from the annealed brass.. so um.. what do you all think? Do you think we need to bother? At this point I'm going to make 50 or so and try them since Barrel steel is still MUCH harder than cartridge brass.. and I don't see that it will be a problem.. anyone else have something to add or say to deter me from trying this? I could effectively remove 1/2 of the steps needed to form bullets from brass.. my steps would be tumble brass, seat cores, form bullets.. done.