Man, I am in the same boat with you and there isn't any brass anywhere right now. I did find some factory loads at a local gun store getting gid of some old stock and I bought the last 2 boxes they had, 1 box of 140gr. Remington CL and 1 box of Winchester 150gr. PP. I guess I was fortunate to find it and I bought it. The store owner said that they had 7 boxes at one time and I got the last 2, would have bought all 7 boxes if I could.
I am going to check with Remington every month and hopefully they will make some soon, but they told my brother that they were out of the 7STW brass business. I hope that's wrong, but maybe they will have a run of 8mmRM brass soon and I will be buying a couple a 100 if I can get them.