Just trying to have a bullet do double duty, but I might be expecting too much.
You're not. I have absolutely no qualms about using the 162s (or the 6.5 140s) on deer at those distances. Used them out of my 7 WSM last year on a culling job. 40-42 deer over two days out to a hair over 680. Like Roscoe said they can be messy up close at those starting velocities, but I was still getting complete pass throughs on the long end of those ranges. Some of them stem to stern....
