Thanks. I am contemplating necking up my 243 cases since I have so many and I am ( for now) discontinuing that caliber. Then, (after annealing) I resize my 243 to a regular 260 case, load and go shoot... And miraculously at the other end I have 260 AI coming out correct? But later I need the 260 AI dies to load...hmmm...dilemma...then I need both dies....perhaps I can use the 260 AI dies in the first place. Just wondering out loud