Unique, huh, yeah
What is it good for
Absolutely nothing
Uh-huh

Unique, huh, yeah
What is it good for
Absolutely nothing
Say it again, y'all

Sorry, I couldn't resist the lyrics. Unique has the distinction of being used in almost every cartridge. I used it for many, many years. Just recently I quit using it. It is a dirty burning powder and the Dillon powder measure has problems with it. I have replaced it with Universal and I'll see how that does.