Whatever you can shoot the best. We "harvested" a number of them with everything from a .243 up to .338 Win Mags. With good bullets and proper placement, they will die. They are not bullet proof. They do have a stout dermal shield over their shoulders and neck (I have skinned them out with over 1/2" thickness of connective tissue), so shoulder shots should be taken with a stout bullet that will penetrate the hide. Anything like a Nosler Partition "or better" will do fine. Any of the cartridges that you listed will do fine with a premium bullet.
