Gunner, do you remember my Buddy Ken exploding those Bib's out of his .243 AI, it's pretty cool to see and you can see it, it looks like a flash of oil on water for a milli-second, really bright colors, about the size of a basketball.. I'm assuming are lead/copper going from solid/gas/plasma states..something everyone should whitness at least once..not sure you could even video it with a digital camera, you'd have to have a high speed one to see it..