Mysterious bullet material

[hogstad7]

What material is this bullet made of? It was very hard. I thought it was a TMJ so I hit it with a hammer so the lead could be melted out, but there was no lead...

[Chris24]

Looks like solid copper. There are a few out there.

[dilly]

Does solid copper fracture? I have seen it bend, stretch and pull but never fracture. I have seen bullets like that before, by the way.

[cpileri]

that is a frangible bullet. i recognize the tip pattern. I believe they were called "sinterfire" or something similar. Sintered powdered iron-copper or something similar.

[oneokie]

Sintered copper.

[hogstad7]

Thx! :D

[runfiverun]

yep compression formed copper 'powder'

[chuckbuster]

I know it has been answered but this is fun to watch
https://www.youtube.com/watch?v=9BNHfo5Ua5Y