Bbbbut it can match the 300 NM with 10 grains less powder, it's all about efficiency in the case design
I dabled with a 30 SM for awile and can attest that there's no magic in the case.
I got tired of screwing with it and built a 30 nosler, which is actually slightly faster!
And Peterson/ADG brass is available everywhere at normal prices.
I laugh a little when people bring up the benefits of the PRC name and all the amazing components that will follow.
Just browse through the classifieds and count the wanted adds for 6.5 prc brass.
At the end of the day though I do believe there's a commercial void to fill in the 7mm line up, and Hornady is smart to capitalize on it