That's a lot of work to keep 25 guys happy.
Maybe Winchester/Olin feels some obligation to the 25 people who bought Browning and Winchester/USRA WSSM rifles.
I would be happier if Federal made some more WSSM brass, as I think that their's is a lot more user friendly than the Winchester/Olin brass. But, when I realized that the WSSMs were slow to take off, I bought several thousand pieces of Federal 223 and 243 WSSM brass from Graf & Son on close out.
