Re: 7mm stw
I only use Rem 8mm mag brass in my 7STW. Remington brass has a pretty bad reputation and will cause benhrest shooters to run away [img]/ubbthreads/images/graemlins/wink.gif[/img] but works well enough in my hunting rifle. I have no problem getting regular .5 moa groups @ 200yds with the Rem brass.
Brass life has also been very good with Nosler listed max loads.
No info on Win brass.