The 300 WSM has developed a strong following and the 270 WSM is closing ground, but I don't think there is that much interest in the 7mm WSM. It really offers nothing new ballistically speaking, but then again niether does the 300 WSM. The 270 WSM is the only one that offers much of an advantage by falling in between the 270 Win and the 270 Weatherby Mag, which can be expensive. If there weren't already so many folks with 7mm Rem Mags then maybe it would have had a chance. Personally I don't have a use for any of the "short mags".