Is anybody out there doing anything with this round? Anybody mfg ammo, barrels, etc?

Well, considering that it's made in small quantities for the Russian military, for use in a very niche-purpose rifle that's also been made in very small quantities, I doubt anyone's even giving it a thought for the civie market.

I'm sure any real serious enthusiast who wants one already has one (Cause anyone who can afford a serious collection can save some $ on class-3 by getting type 7 and 8 FFL's [minimum])