His "conservative" load for both handguns with an intention to reduce wear and tear & provide the most consistant accuracy is:
40 gr. of Goex FFFg -and- using the same spout for measuring the Goex by weight will allow the proper measure of Pyrodex by volume of 40 gr. , either propellent to be followed by a lubricated wad and a .455" or larger round ball.
His maximum for these guns is listed as 60 gr. Goex FFFg and 40 gr. of Pyrodex.
So 40 grains of Pyrodex is both the conservative load and the maximum load???