I have noticed lately a big uptick in people wanting to "make" their own alloys. 99% of these people have no idea what is really involved in the process of alloying metals and especially the dangers involved in the safe handling of alloying materials like arsenic and antimony. And then you have the issue of how are you going to test your alloy to see what you actually have.
All of this when places like Rotometals have documented, high content lead alloys, that will readily melt and easily alloy with your lead. Safely at that.