You'll end up at some point wanting bushings larger and smaller than the nominal. As the cycle count increases, so will the neck thickness. If you turn necks someday, you may overshoot and go a tic too thin. I'd also buy bushings one size up and down fom what you think you need. The day you do need them, you'll need them right then, not the five days later it will take to get them shipped in.
Hurry up, would you? PDs in Pueblo this Saturday!