RE: 270 WSM vs 7mm WSM vs 300 WSM vs 325 WSM vs 300 Win Mag
Given the similarities in ballistics between the 300 WSM and the 300 Win Mag... and the noticeably lighter weight of the 300 WSM due to the shorter action, my choice between those two is definitely the 300 WSM... especially for a mountain rifle where weight is an important factor.