Have several White Mountain Carbines in both .54, and .50 caliber. Have tried Goex, Pyrodex, and 777. Goex has best ignition, and performance. Pyrodex would be next, less forgiving than Goex, due to higher ignition point, but still mostly reliable. Last would be 777, again, even higher ignition point than Pyrodex, so better chance of hangfire. Using a musket cap would help, in a hunting situation, with 777.