For the life of me, I can't find a long skinny metal funnel for pouring lead. I looked at a sausage stuffing funnel/tube .... might work? I'm not steady enough to use a squished metal can. I don't think a transmission funnel would work. I would think the lead would get hung up that adjustable tube. It can be frustrating because gunsmithing is an amalgamation of other trades tools. [shrug]