Keep in mid that you cannot correctly chamber an Encore in 25-06 to 25-06 AI. In a bolt gun, the barrel would be set back to achieve the proper dimensions. You can't do this in the Encore. For the 25-06 AI, you'd want to start with something along the lines of a .257 Roberts, .250 Savage, etc.
A seasoned handloader can deal with the "incorrect" AI dimensions, however, if you are truly bent on going the AI route with the existing 25-06 chamber.