Hmmm, that depends what you are actually comparing. Granted a 270 Weatherby caliber has more power than a regular 270, but Weatherby also makes the plain old 270 which is just that . . . a plain 270. Look at the 7mm rem. Power wise they would go in approx the following order. 7mm rem. mag, 7mm Weatherby mag, 7mm STW, 7mm ultramag. So you have to compare apples to apples.
long