Thanks for posting this!
Finally Nosler has put to use those newer slow powders. Good to see it in print.
I have read the 28 Nosler has almost identical case capacity to the 7 STW. Unfortunately Nosler doesn't have any recent data for the 7 STW using RL-33, Retumbo, US 869 etc.
For what it is worth, I made a full length 7mm/375 Ruger and with 86 gr of RL-33 and a 168 Berger classic velocity from a 26" barrel is 3268 fps.
I guess if you include this wildcat we have four cartridges that accomplish very similar velocities. The fourth is the 7mm Dakota.