RE: .280 Caliber
Hi bb122,
The .280 Remington will do nearly exactly anything the .30-06 or the .270 will do, no more.........no less! It has fewer factory loads than either of the other two simply because it is not as popular.
You should be very happy with it based on your proposed uses. (Don't let anyone tell you it is either better, or worse than either of the other two named cartridges. It is only a matter of preference!)
Hope this helps.
Dave