Originally Posted by geargrinder
Worrying about barrel wear between 7mmSAUM, 7/300wsm and a 7mmWSM is like worrying about the barrel wear between a 338RUM and a 338EDGE.
I'm not saying that there isn't a difference, just not enough to worry about.
Now if your worry about the case necks being longer, I'd have to whole-heartedly agree.
Another issued I have with the SAUM is the brass. The only choice is Rem. WSM's, you can have Norma which is a fair bit better than Rem or Win brass.
I would agree 100%! There is so little to choose between here that it's simply not an issue.
I shoot the 180 Bergers at 3.020, and get 2930 FPS.
If you really want great barrel life, with this caliber, look at this article:
Record-Setting .284 Win F-Classer
Speeds are very close.