My process for brass: fired brass for chamber forming. Measure neck size to determine chamber size. Size necks to provide dust cleanup of I/D, then pilot in custom hard turned handed to dust O/D, providing ear zero runout. Then fish my size to provide 0.002" bullet press fit. My next step is to anneal necks and perform this to see if neck tension. Until this point I've not had to bump size, but that's next after annealed test.
