After researching savage I realize that you can change calibers by getting a new barrel and bolt face. So lets say i get a .308. That would allow me to change to a .243 by only changing the barrel. But if i wanted to swap to a .223 i would have to get a new barrel and a new bolt face. Am I correct? Finally, is it possible to swap from a short action caliber to a long action caliber such as a 300winmag?