A few years ago I sent a sample of the stuff I have to Idaho Ron and his tester showed it was a little harder then true pure lead, but the stuff is still plenty soft enough for round ball and rifle use.KV Rummer said:They gave me an invoice that said it had 4 to 6% antimony.
You may want to check the hardness.
I can't remember for sure but if pure lead is 5 brinnel this stuff was 7.
I just score one side deeply with a utility knife then fold it back-n-forth a few times,, the cut will fatigue and break real easy.smoothshooter said:Get a pair of large tin snips to cut it up with.