I've been through maybe 3 cans of BH209 without a misfire. I use CCI-209 Magnum primers if that helps. I've read somewhere (my memory sucks or I'd tell you where) that BH209 needs to be packed down pretty good or it'll misfire. I lean on that ram rod heavy and make that powder good and tight.
On initial tests, I played around with the number of shots I could get before the flash hole crudded up too much to fire. I got 12 shots! I just clean it ever 3 shots and never have had problem.
All in all I've had great results with BH209. But it is crazy expensive.
Last edited by Gun_Geezer; 01/07/20.