Gearheart - you just about have me convinced. I wasn't too convinced that there was much difference between Pyrodex, Triple 7 and BP FFg. But it looks pretty obvious now. The Goex FFg and the 320 REALs shot great out of the Lyman and the LRH 21" flinters. But this bullet with basically the same barrel but longer in percussion using Pyrodex and Triple 7 did not fare out so well.