(Spoiler: I still don’t know exactly.) The Copper rose is similar to other mono-metal bullets in that it has relief grooves which give the hard copper somewhere to move when engraved into the rifling, ...

Copper recorded the longest winning run since 2017 in a December rally powered by the prospect of more stress in the supply chain. The metal rose 2.7% to settle at $12,558.50 a ton, the eighth day of ...