Rifle: IMR3031 is great because I can use it across so many calibers. H4831sc, 4064.
Pistol: Lil'Gun, H110, Titegroup.
I have other powders I haven't tried yet. There are a few I ant to get to try.
I use Lil'gun and H110 for 300 Blackout. Good stuff.
Man, Unique is like Frank's Red Hot...."You can load that sh*t in everything" !!