I have not used either the 777 or Pyrodex pellets. Howeverr, 777 or Swiss are the only BPs I use because of their quality. Last I knew, the pellets were to be used as they are, not crushed. Last ones I saw had one flatside coated with an "igniter" and the other not. The igniter end goes toward the cap/primer.
Actually, I would expect full instructions for use in a C&B or muzzle loader to be on the container or on Hodgdon's webbsite.
I would presume that you bought 45 caliber, 30 grain EQ pellets. In a 44 C&B that is a "full" load. I use 30,0 grains volume of 777 FFG (not fffg) in me Remington New Army replica by Pietta.
Lars.