You know, I may have that article in book form from Safari Press. I think it is all his articles from Hunting Magazine.
IMO a 7mm mag with a 26" barrel is about right and a .270 Win with either a 22" or 24" barrel is spot on. In the .270 Win FWT I posted pictures above I'm getting 3120 fps with a 130 grain Swift A-Frame from its 22" barrel and brudder that's nothing to sneeze at.
A 7mm mag is at its best (again IMO) with the 160 grain bullets.