I use Unique a lot, also H4895, these 2 work in many different cartridges. Unique is especially good for cast bullet shooting in anything from smaller pistol rounds to large bore rifles, it's also useful for loading the old black powder cartridges with safe pressure levels. I have started to buy my most used powders in 8 pound jugs when I can get them. I try to use powders that have multiple applications but I still have probably at least 20 different powders at the moment. Some powders are exclusive to a single rifle, Winchester 760 for example is used only for full power loadings in my .375 H&H and it excels in that role.