Use to use clays universal for .45 and 9mm before it became non existent. Ran out of titegroup but lucked out and found some more at the local gun store. I like titegroup because it is well priced, doesn\’t foul the gun fast, can get many rounds for range use out of a pound of the stuff, fast burning so good for small case capacity, however, I have used in 357 and 44mag, it has been a good pistol powder for me. The negatives, if you aren\’t confident in your equipment you could double charge easily and not notice, not good for loading to max potential of cartridges, pressure can spike rapidly near max loadings.