For those who scrounge range scrap;
What BHN does it usually run? What I have smelted ranges from 10 to 15.5 BHN depending on the batch. Sort out the 22 RF and the obvious hard cast. It contains mostly hardball pistol, some jsp, some rifle sp and some wc and hbwc.
What is the core of the 5.7X28 bullet? It is soft, can be cut with wire cutters, but will not melt in the pot. It floats. Only way I have melted it is with Ox-Acetlene torch. Makes round balls that are hard as glass, and those will float on the mix in the pot. What I have found on the Mail Order sites states that it is a non-lead core. Bismuth??