muzzle velocity

[powder und ball]

Any body have any ballistics on the lyman plains pistol .50 caliber.

[mec]

I've stayed within the 40 grain fffg maximum they mention in the instruction book although I used to use 50 grains and the equivalent of pyrodex in a cva I had before getting a chronograph.  Pyrodex and fffg seem very consistent while the H 777 gets erratic in the top loads.  The 777 is more energetic than the other powders and happens to work very well in this pistol from the light 20 grain black powder measure. (second picture)