Buy a standard 6 Creedmoor FL die. Lube, run it up, done. For better results, I would use a mandrel die afterwards with a neck turning arbor. Should bring you close to your desired neck tension. ( this is what I did ). I did remove the expander ball during sizing.
I read some used the FL dies with bushing, but got donuts stepping down to far in one step, so you would need two different size bushings.