Hey Gator,**** I don't have one of the newer Sendero's. I did own the blued version/round barrel in 7RM and .300WM. Both were excellent LR rigs that shot precisely and accurately. I currently own a 700P in 7RM and a Savage 112BVSS in .300WM. I have never owned either of the RUM flavors.* With that said, if I were going for elk, I'd go with the .300 WinMag. Without a muzzle brake
and stout loads, it's probably all the rifle I can comfortably and accurately shoot (no do likey much thump on this end). It's been killin' elk since 1963. JohnnyK.