I believe the 6.5 SAUM has a longer neck than the WSM cases.
There are many factors in accurate barrel life but I believe a longer neck helps.
I also agree that the 6.5 SAUM could be THE long range hunting cartridge when you take into account recoil, windrift and retained velocity/energy. And if accurate barrel life is 2500+ plus rounds, sign me up!
Last edited by crazyhorse; 01/10/13.