[Rev]

Unique has always been a useful pistol powder due a fairly wide spectrum in mid range load use. Herco is slightly slower. A close friend swears by 4756. The main thing that I have against Unique is that it's dirty, at least in the loads that I use it in and is hard to meter accurately.

HS6 comes to mind for the ball powders. The nice thing about the ball powders, small flakes, and small stick powers is that they meter easily. The large flakes like Unique are a little hard to meter, at least in charges that I use and meter with my RCBS powder measure.

My bet would be to use the powder that most nearly fills the case for the listed max load. Of course that doesn't mean to start at that max load as I'm sure you and everyone else is/are aware. But that does, at least, give a place to start when picking a useful powder.

Rev