Someone in the Nn3 group is doing code 30 rail by etching in the web.
That "someone" is my friend Gregg Cudworth, who is also making etched and investment cast kits for Nn3 steam locomotives and several different narrow gauge cars.
However, I'm not sure if Gregg is offering his etched Code30 rail for sale, as opposed to his locomotive and car kits.
I have a sample of Gregg's etched Code30 rail, with an actual rail profile, to experiment with, as opposed to "normal" Code30 flattened wire, which is no longer available.
Although Gregg's etched rail looks very nice, the NS it's etched from is much softer than NS wire, and it is very easily bent, and I'm not sure if one PCB tie every seventh or fifth tie is enough to ensure durability, which is one of the reasons I got a bit of his rail to experiment with.
When I get a short section of standard gauge N-scale track laid, I'll post some pics with Gregg's permission.
Photo (1) - A photo of an almost finished section of Gregg Cudworth's basement-filling RGS with Code30 flattened wire as Nn3 trackage rails:Cheerio!
Bob Gilmore