Ditto. There really is no real point in getting a 30-06 and a 300 mag. Spread you cartridges out a little bit.

If you like the ultra mag case then I would go with the 30-06 and 338 ultra mag but they don't chamber the 338 in the sendero. The 338UM will add much more to the table than the 300UM would over the 30-06.

Unless you are going to be hunting from Oregon, North along the West coastthe XCR won't really benefit you much at all over regualr stainless which still isn't that much of a benefit over blued steel if you aren't one to put your guns up wet and let them sit there.

Personally, if you have to have a sendero I would get it in the 264 Win mag and get the 338RUMin the XCR.