Originally Posted by crazyhorse
I believe the 6.5 SAUM has a longer neck than the WSM cases.


Yes, but not by much. If I'm reading the diagrams right, about .31" vs. .275" for the WSM. The shoulder on the WSM is a little sharper at 35 vs 30 for the SAUM, which is another factor that's supposed to affect barrel life. Probably the biggest factor is how hot you run it. You can see pics of both on this thread:

http://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/7243319/8


If I shoot out my 6.5 WSM too soon, I'll just have to re-barrel to 6.5 SAUM.....I don't mind letting those guys do all the load work-up grin


A wise man is frequently humbled.