On the 7 SAUM brass choices:
Remington brass is good to very good, but its flash hole is too damn big. As result, I get pressure earlier than I do with the Nosler stuff, which has a smaller flash hole. The Nosler stuff is very good to excellent, but of course the price is super high.
Both brass options will stack bullets into the same splash at 1000, so its a very impressive cartridge. The Remington flash hole issue, for me, is the only thing different between the two.
I selected 7SAUM over the 7WSM because I thought the cartridge dimensions are a tad better. Like its shoulders and neck length better. The reality is that I'm not sure you can tell the difference in the field.