No Black Mag, or Pinnacle in my area yet. But when it is available I will be trying it. I have been shooting A.P.P. in FFFG. Works great in my in-lines, and sidelocks. I have used it in my flinters, but used either FFFG, or FFFFG, Goex as pan primer. You are right, Goex FFFG would be my first choice for hunting with a flinter, can't beat the reliable ignition. I have used A.P.P. in my flinters, target shooting, and just having fun. It works, but not as reliable as Goex. Does Pinnacle say to use no lubes with it? The local gun shop I go to will be getting Pinnacle in, but not until July. I have never seen Black Mag in my travels. I will ask about it when I go to the gunshop next time. I find that the FFFG A.P.P. works best in sidelocks. I have used FFG A.P.P., but would only use it in in-lines, with 209 ignition.