DO NOT POUR MOLTEN LEAD ANY WHERE NEAR WATER PEOPLE. Believe me on this. It will explode all over you, and it is hot. And it will burn you. When you are around molten lead you need to even be careful of sweat on your forehead dripping off. Please, that lead will explode all over you.
This is a very bad idea. I once was casting with the doors open on the shop and a simple gust of wind blew snow into the shop and a few flakes hit the molten lead. Next thing I knew, I had molten lead on my pants. Not a good thing.
Wear long sleeve shirts, gloves, and eye protection. But do not try pouring molten lead into a powerbelt hollow point. If these bullets are that bad, then do not use them.
I think FG has shown us that if you use them right, all these gimmicks are not necessary.