I will relate a conversation I had online with a noobie
Because Hornady markets Superformance ammo his logic was that Hornady loaded all of its Superformance ammo with the one Hodgdon Superformance canister powder.

Since he did not find any data for his .444 he proceeded without any data.
He owned a chronograph but he did not understand why he only got 1400 fps.
He wanted better data to match the high velocity of the Hornady ammo.
I investigated and found that Hodgdon supplies 14 non-canister powders to Hornady to load Superformance ammo.
Some people's logic is amazing.