.243 Win sizing question

[TORCHRIDER]

I am about to load for my first non-factory cartridge, the .243 Ackley Improved.
I purchased some new WW .243 Win brass and would like to load and fireform it in the AI chamber.

My question is:
Can I size the std. .243 brass with my .243 AI die set or should I purchase a set of std. .243 Win. dies to do this?

Thanks!

 

[tunered]

Your AI dies will be fine, about all you will be doing to the new brass is truing up the necks. ed