Had some 777 that went bad, so I figured it would be a good time to finally try real black. It's kind of a drive to get it, but it was time. I don't like it, other than ease of ignition and long shelf life. Only good for 3 shots in the .50 hawken, before I HAD to clean the bore so I could load. Stinks like heck. I saw no real advantage accuracy wise. Does not seem to be as much smoke as 777. Interesting. My scope on one of the hawkens took a dump too. Apparently, my loads were pretty hard on it. Gave me a few anxious days before I figured everything out. The 777 was probably 5 years old, was getting hard to light, and accuracy went south.