Get ahold of a local plumbing supply shop,plumber or what ever and ask him if he has access to lead sheets. I found some here only 45 minutes from me.. but doing the math...50 pounds of pure lead is $100.00 bucks. I could cast approx 1500 rb out of it. Now to buy 1500 rb it would cost about $240.00 bucks so you save $140.00 bucks...but by the time you factor in cost for the power to get the pot up and running,plus your time of actual casting...for $140.00 I really dont think its worth it. It takes one helluva long time to cast and inspect 1500 rb's....