The various propellant companies have good data sheets on their products used with various projectiles. The BH209 site gives very specific recommendations for their product which has some limitations due to it's ignition and burning characteristics. It performs very well when used as designed. It also has application in cartidge guns.
BP, 777, or Pyrodex are probably the best choices for the REAL or other lead conicals as the BH folks don't recommend their use with 209.
