Lots of people I talk to who use standard loads to form brass for AIs get GREAT accuracy from those loads. Don't be suprised.
Tyler, you can use your AI dies to load standard rounds for your rifle. They will resize the brass enough for your new chamber and all you are really looking for is neck tention to hold the bullet so you can fireform the brass. No need for new dies.
Genises 27-3: Now therefore take, I pray thee, thy weapons, thy quiver and thy bow, and go out to the field, and take me some venison...