JedYonkers
10-16-2012, 07:53 PM
First time poster and long time lurker.
I have a bit of a problem with a batch of lead I have.
I have about 15lbs of the stuff. I started with roughly 7lbs in the pot.
I heated it to about 725* and made sure the mold was hot. I don't think the problem is the mold (lee TL 452-230). Any way the bullets are not filling out very well in the lube grooves and are about 10 grains heavier than the ones I cast on Sunday with a different batch of alloy. 230grains + or - 5 grains. The new mystery mix is dropping them at 240-250 and slightly out of round. I am assuming the out of roundness is due to the poor fill out. I added about 1/2 pound of hard shot hoping to add some antimony and arsenic to harden it up .
What and how much should I add to the mix to harden it up and help fill out?
'Should I add something like Linotype or rotometals super hard and how much would I need ? I'm going for about 10-12 brinell hardness for 45 acp loads.
Am I over looking something? I am most concerned with getting good fillout vs weight.
I have a bit of a problem with a batch of lead I have.
I have about 15lbs of the stuff. I started with roughly 7lbs in the pot.
I heated it to about 725* and made sure the mold was hot. I don't think the problem is the mold (lee TL 452-230). Any way the bullets are not filling out very well in the lube grooves and are about 10 grains heavier than the ones I cast on Sunday with a different batch of alloy. 230grains + or - 5 grains. The new mystery mix is dropping them at 240-250 and slightly out of round. I am assuming the out of roundness is due to the poor fill out. I added about 1/2 pound of hard shot hoping to add some antimony and arsenic to harden it up .
What and how much should I add to the mix to harden it up and help fill out?
'Should I add something like Linotype or rotometals super hard and how much would I need ? I'm going for about 10-12 brinell hardness for 45 acp loads.
Am I over looking something? I am most concerned with getting good fillout vs weight.