Emailed Vista/ATK/Alliant/Federal/Speer about a month ago and they were indignant that I would suggest they publish data for it. "Takes time". Right. They developed this cartridge over a year ago.
Yet, a guy in a cowboy hat developed a few loads in his backyard:
https://www.youtube.com/watch?v=5cY6NyV-EWM
But Hodgdon just delivered, in time for Thanksgiving
https://www.hodgdonreloading.com/reloading-data-center
Looks like I finally have a use for that Longshot I bought a year ago...