I have Unique, Power Pistol, Longshot and #9... I'm using Unique for low recoil practice and HD ammo.

Of the powders I have, if I wanted to push the 150 grain Nosler bullets really fast, which powder is ideal for 150 grain bullets?

PP & Longshot will get you there

Any good data for Longshot?

I figured it'd be about right, but cannot find any good info on it.

LongShot 10.0 grains will get you up there with the 150 gr. Nosler @ 1425 fps +

Longshot and #9 will work, I don't have any time to check for 150gr bullet data, but you can use 155-165gr loads of course.

I didn't try #9 with 150's, I think it is too slow for bullets under 180 grains... I will try Power Pistol first, mainly because that can of powder is over 10 years old, need to burn it up.... The Longshot is brand new.

Power Pistol and Longshot should be about as slow as is practical for bullets between 150 and 165 grains.

According to the load data available, Blue Dot covers a very wide range of bullet weights...

I just got back from the range and the mid range load I'm using with Unique is extremely accurate... Not a speed demon, but accurate and the brass is laying right next to me, I'm liking that load more and more.