So. Dak.,
Everything you've been told about the .280 is correct. A buddy of mine has a Remington BDL in .280 and really loves it. Thus far he has never had to track a deer after shooting it.
I had read in the past that you could really make the .280 shine if you handloaded for it. However, there seem to be many factory offerings that should prove to fit the bill.
By the way, I have the Sightron SII 3-9x42 on my Remington .30-06 and LOVE the scope. If you have not used a Sightron before, I think you will be super pleased with the Sightron/.280 combo you got there.