Thirty years ago,a friend and I loaded enough IMR 4350 to get 3000 fps from the 23.6 inch barrels of our Steyr rifles with both 150 Hornadys and 150 Partitions. We actally got our data from a second edition Hornady manual.
By the next edition,the data was revised downward,and I got nervous after a while and stopped loading with the old(probably not pressure tested data).
The reason that I bring it up is that the 150 grain Hornady interlocks and Nosler Partition were very pure death rays on everything we shot. A buddy once used a single partition to break all three shoulders of two bull elk. The Hornadys just electrocuted deer.
So thanks for new data to sanely recreate our old loads.