I haven't had time to really think this through so I'm throwing this out for pro's and con's .
Lead melting , lead pots ect . have often been the topic of conversation . Once in a while somebody mentions pressureized lead injection .
I have mulled this over a little but I'm so strapped for time I haven't been able to put theroy to fact . I was thinking might be possible to make an economical lead injection this way . Take a machined cylinder that will have an I.D. to match a piston . Create a manual arm that can move the piston up and down in the cylinder . The arm should be able to raise the piston completely out of the cylinder for lead loading . Create a slide bar gate valve and end cap that is screwed on to the cylinder for access and cleaning . This unit could possibly be heated by digitally controlled bands rather than an element . Also the slide bar would need a heating element . Once assembled pressure could be applied to the lead before opening the gate to the mold by the arm handle . I also realize that automated means could be applied if the lead can't pass the piston rings .
Like I said this is just a nutty Idea if anybody wants to chime in here please feel free . Or just tell me to go jump in the lake .