FWB, the commonly accepted meaning generally means cartridges that do a good bit MORE than the .270 (or '06, etc.) in the velocity department for a given wieght of bullet. If you begin imposiing your own idea on the rest of the world, you create confusion--particularly for a newbie.
So the .264 WinMag on up to the RAUM stuff, etc., are within the accepted parameters as most people understand them. The .270 is not.
You're from BATFE? Come right in! I use all your fine products!