I am looking to build a lightweight rifle for mountain hunting. Primary game will be Elk with a maximum range of 400 yards. I also plan to use the gun at the range and would like to keep the recoil low. A short action cartridge would be nice but am willing to compromise on this. I don’t currently reload but am willing to spend the time to learn. The option for factory ammo is desired. I have been considering these cartridges, 308, 270WSM, 7mm-08, 6.5PRC for short actions. 30-06, 270, 280AI if I go with long action. If I do reloading I would like to use a cartridge and bullet weight combination that allows for reduced recoil loads. I would plan to use the lighter loads for practicing at the range.