The problem seemed to be the sabots and not the powder. I had the same issues using 777 pellets. As for the BH209, so far I love the stuff. Performs as good as the pellets or better for me and is a heck of a lot cleaner. Added bonus is I get to see the deer after the shot (little smoke}. I have the BH209 breach plug for my CVA Its the only thing that is hard to clean up after shooting.