I have the old PH 58560 mold, for my Musketoon, and have been casting up a bunch lately. Collected 18 & 1/2 lbs of lead from stick on wheel weights, mixed with pure lead balls that I had no need for. My initial attempts were mediocre, about 75% went back in the pot due to flaws. After a couple hundred attempts, I'm down to about 20% rejects now, and my standards have gotten much higher for what goes back in the pot. Use a pot without a bottom pour, and use a ladle to pour into the mold.
I could probably sell a few if you want, but shipping gets expensive.
Vincent