I bought a box of opened bulk 308 JWords from a for sale ad. In the box was what looked like a few odds and ends that seemed to have been tossed in from somebody's attempt to cleanup the workbench.
Included was a boolit of soft lead. 55 cal, roughly. Shown here dwarfing an RCBS 45-255-SWC. Weighs 410 gr. What is it? I do know it will be reincarnated via the Pro Melt soon.