From Berm to Bullets Part 2: determining the alloy

This is part 2 of a 4-part series I did some time ago, but which YouTube torpedoed me for. I'm finally getting around to uploading the series here.

Link to part 3:
https://rumble.com/v1gqug7-from-berm-to-bullets-part-3-casting-and-powder-coating..html