don't usually come onto this forum, but was having a look around as we were given a very good demonstration on how to load a BP pistol last weekend at our club. One of the things stressed was seating depth of the ball, it needs to be seated just to the front of the cylinder, any deeper and the ball will be travelling too fast to properly enter the rifling, that is apparently why you pack with a wad and semolina then grease on top of the ball if using BP rather than pyrodex or 777