No. There is not that I know of, or have read about in all the forums that I visit concerning reloading that have any information on the 5.7X28.
If there was, I am sure that someone whould have jumped on it by now as there are many reloaders out there that would love to use virgin brass, even if it was modified, over once or twice fired brass.
The specs on the 5.7X28 are here: