Please support us at: https://www.patreon.com/capandball Load for the original: 457 RB + 18 gr corn wheat + 18 grain 3Fg Swiss. Load for the Pietta replica: 18 gr 3Fg Swiss + 18 grain corn wheat + .451 RB (unfortunately the cylinder sizes the bullet to .441, adn the bore dia between the lands is .446, so you can'T expect too much accuracy...