My favorite BG round is easily the 308, and to a lesser degree, 270 Win. Right now I have two of each, and those are the only BG rifles I own.

The 308 is simply a thing of beauty. Kicks noticeably less than the 30-06, but does the same thing. It's available everywhere, miserly on powder, and inherently accurate. Likely the easiest round to get shooting of any cartridge I've ever worked with. The 308 is the epitome of KISS.

I used a 280 for a time in the early 1990's. I simply saw no reason for it over the more common 270, and eventually switched back.

“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery