For single balls, about 4-5 gr Bullseye works better. You can buy .454 swaged balls for cap & ball pistols without casting. A little Liquid Alox dried onto the balls first will help a bunch. Two balls works well too, but be careful because some powders require a minimum sized combustion chamber, ESPECIALLY 5744. As in a 45-70 with three balls, load for 520gr bullet, 2400, Unique, 4227 work fine but 5744 goes thru the roof because of reduced air space. Most all Alliant powders will be OK within reason. Remember if using a loose gas check, card or felt wad, BE SURE that these remain firmly against the base of the bullet (ball) not down against the powder with an air space between it and the ball.