I am thinking about getting a 6.5PRC to put more energy on animals father away. I eventually want to get a 300PRC to shoot elk. It seems to me that if I get a 6.5PRC in a Long action instead of a modified short action, then I could just simply rebarrel the rifle and move on as a cost effective option. I know the bolt pull will be longer and mags will be longer. Am I missing something? Thanks in advance.