Silvers,
Respectfully suggest you obtain and read Oscar Gaddy's seminal works on the subject in DGJ. Further I was trained by Pete Erdner at Piedmont CC. Pete has done thousands over the course of 20 some years as the "Professor". He would not consider re color casing anything unless it was first annealed. This even included Crescent Arms single shots. Indeed his most noteworthy observation is that "good steel is the basis of good case color." Good luck, Dr. BILL