I shot some 357 magnum loads at the range yesterday. Some of the loads were with 2400, some with W296. Both with 158 gr LSWC. Both loads were done with the same seating and crimp settings. This was the first time I've used W296, in the past all of my 357 mag loads have been with 2400. I noticed that the loads done with 2400 left some unburned powder on my hands, while the W296 loads were cleaner. I don't remember 2400 leaving behind so much unburned powder in the past, but it's very possible I just don't remember since I didn't have anything to compare it to. Is this just the way 2400 is, or does it need more of a crimp to burn cleanly than W296?