Density is important in a bullet because it allows for a greater transfer of energy down range.
With that in mind the mass density of gold is 19.3 g/cc, lead is 11.4 g/cc which means gold is almost 70% more dense making it perfect for a bullet. In fact the only projectiles with a greater density are depleted uranium rounds used in military applications. The bullet shot by TAOFLEDERMAUS in this video is worth about $2600 because it’s made of 2OZ of solid gold!
Watch the video below to see how the world’s most expensive bullet performs.