I've been using 777 in FFG granulation in my Pedersoli SxS 12 ga. I find that it works well, ignites good. There is minimal powder residue, but what there is seems to make a nice seal for subsequent wads and they seat well/easily. I like the advantage of being able to hunt for a two or three day hunt without the worry of a thorough cleaning. Just a couple of wet patches followed by a dry one or two and I'm good to go again tomorrow. In my rifles however, both traditional I use Goex. I might add, the one time I tried 777 in my percussion sidelock gun, I did get the dreaded "crud ring". I found it fairly difficult to get out also. I've never experienced any such crud ring though, in the shotgun, no matter how many times I've shot it. I love this powder in the shotgun. I have no use for it in my rifles.