haugenna,

Wanted to check first before "spoutin off", but now I'm even more convinced to stay with the standard 270Win. I did some checking at Federal's website on a couple of loads for the 270Win. vs. 270WSM. Both of the loads noted are figured for a 200yd. zero.
270Win.: ..................@100yds. ................@400yds.
130gr. Nos.Part. ..........+1.4" ....................... -19.1"
140gr. TB ................... +1.6" ...................... -21.5"
270WSM:
130gr. Nos.Part. .......... +1.1" ...................... -16.3"
140gr. TB ................... +1.3" ...................... -17.7"

Just not enough difference for me to justify the WSM. Take the standard 270Win., sight in approx. + 2-1/2" high at 100yds., and drop at 300yds. should be about - 5"to6", and - 18" at 400yds.