When I got my .257 AI I bought several bags of RP brass and it has treated me well.

Before that I'd talked about necking down premium (most likely Norma or RWS) 7x57 but am now glad I didn't take that extended trip around the barn.

The RP has served me very well, but I just noticed that Nosler is now offering it in their custom line. I'm definately going to keep my eyes on the shootersproshop web site for some blems of THAT!