RE: .270 or 7mm-08?
The .270 is a great round you will find in every ammo shop in the country. The 7mm-08 is not as abundant but in all the major stores you can find.
What you have to look at is the .270 has a bit more power but the 7mm will kick less and is a short action so the rifle may be lighter allowing easier travel and packing.
I love my .270 but plan on getting a 7mm in the future just for kicks.