I think the 3X9VXII or the 2.5X10Bush. previously mentioned would be great, I like the Eye Relief of
the Leo. better, the 270 is mild, but the CDL is light, not a problem if you keep it in the back of your mind should you go prone or an awkward position, otherwise the Bush. has enough Eye Relief.
I like the 4X12 alot & have used it on one of my Deer rifles, but the self imposed limit is 300 yards here, so the additional power is not need.