I can't find any specs online or else I would compare myself. My real question is whether or not a WSM reamer will clean up a Rem SAUM chamber and what is the bolt face difference?? I know the WSM is based on the Jeffrey case but not sure about the SAUM. Thanks.

No modification to the bolt face is needed. The WSM chamber will remove all the SAUM chamber and work fine. We have converted several. WSM ammo is more abundant but I personally like the looks of the SAUM better. Both work well.