If you really want a .280/7MM caliber, (and it is a great choice, it has a good reputation as an accurate and effective caliber!) Take a good look at the 7MM-08 it
really does a job on deer and can handle larger game too, with even less recoil than the .280 Rem.
The .280 is good too. It is the most that you will get in 7MM without going to the belted magnums! Again, good luck!