Auto pistol cartridges are pretty simple for me - if I can't do it with Unique and Power Pistol, I probably don't need to do it. Same with Revolvers - if I can't do it with H110/W296 or HP-38/W231, I don't do it. Throw Bullseye in there for good measure.
Got lots of pistol powders on the shelf, really wanna find a load where I like CFE Pistol, 800-X, Herco, HS-6 AA7 type powders, but for how I shoot, Unique, Power Pistol, W231, and W296 cover pretty much all of my handgun work