I know this is a pretty vague question, but I know everyone has a favorite powder out there with pet loads for your favorite caliber, and I'd like to know which powders you use the most, and for which reasons. Criteria are: Clean burning Meter well Bulky (prevents double charges) Accurate Caliber Compatibility So, I know plenty of you fine folks have many years of experience rolling your own, and for your own purposes have come to prefer one brand of powder over another. If you have the time, I'd love to read your responses, and pick your brains for some powders I'd try in the future! Thank you for your time If I've left anything out, let me know I can add it for something to look for myself when selecting a powder. For pistol: I don't have much experience, but I really like IMR800x for it's cleanliness, accuracy, and bulkiness when I load for 9mm, not to mention it has great caliber compatibility. When I use my fav load of 5.1gr it compresses the load, which I've read can add to the accuracy of the round. A bit unnerving when I shake them if I'm looking for squibs. And I must admit, it meters sort of poorly. I can get within 0.1 for 15 throws, but once in a while I will get a max deviation of 0.5 grains, so I weigh every load. This wouldnt be a very good choice for a progressive press. For rifle: I have to say pretty much the same for IMR3031. When I load for .223 it's super clean burning, very accurate, it's sort of bulky, so I can easily spot a double charge, and it's a do-it-all powder for rifles. This time I can shake them to safety check for squibs (even though I weigh every charge) Again, it doesn't meter very well and sometimes I can get a max deviation powder drop of .2-.3 in my Lee Perfect Powder Measure.