When brass is starting to be produced, I'm sure there will be a few retailers or gunsmiths that'll stock it.
My 6.5 Saum is nice, I run a little lighter load with the 147's just a tad under 3000fps to preserve brass life, recoil is nice also with the PVA brake I have on it. Now that PRIME is manufacturing 6.5 Saum, better brass may be available soon so it should be a really appealing to non- reloaders (if you can get it in Canada) same goes for the 6.5 PRC with Hornadys support.