Don't know if this will be helpful...
As of Wednesday morning
Powder Valley
Powder Valley - Shop Reloading Supplies and Ammunition (powdervalleyinc.com)
has Starline brass in 308 Match. The ad says "small primer" I am clueless as to whether "regular" 308 aka 7.62 x 51 is the same as 308 match. Even if they are the same and you don't have small primers on hand you are out of luck.
Starline 308 Match Brass (Small Primer) | Powder Valley (powdervalleyinc.com)
I recently bought a bag of shot from them for my first ever purchase and can say that their order processing is a little slow but they did deliver.