This is the alloy I was using for bullets. According to my notes it should be about 95% lead, 2.5%tin, 2.5% antimony. 11-12 hardness. Again, as with all this stuff it is an educated guess. There is 55 lbs, will be packed into 4 SFRB which will then be placed in a MFRB and braced with plywood top and bottom. That is about the best I can pack it. $80 shipped