I know I'm old fashioned, and slow to jump on the bandwagon of new stuff. All of my reloading is for rifles, and I probably have somewhere between 20-25 different powders on hand. The "newest" powder I have is probably Varget, as the others are all what I'd call "old school". I'm sure that the new powders work just as good, and maybe even better. But, I'm comfortable with the powders I've used for many years, and somewhat reluctant to quit using them.