The Ross is a interesting and seemingly fine rifle. Easily scoped for those who prefer. When chambered for the .280 I would think a scope to be near mandatory for its use.

In the .280 Ross and the .275H&H I have had success with the 160gr Nosler Part. Its open back and the slap of 60+ grs of powder seem to "make" them fit.

As to a Sporter K-31, I seem to remember a recent release of a line of custom rifles on this action revived and newly produced. Lynx Co. maybe ???