Lead is also highly toxic and very poisonous...
I wouldn't eat or breathe either one but both are safe to work with proper safety gear... always wear gloves, mask and eye shield. I also cast outdoors.
But I agree with USSR and de Shaman...
You can alloy pure antimony but it's more work so use pre-alloyed high-antimony lead. That's what it's for.
The standard formula of 6% antimony and 2% tin is rated at 16 BHN.
A softer alloy of 3% antimony and 1% tin is hard enough for pistols out of the mold and harder when water dropped.
I like keeping any pure lead I can find in it's pure state until I need it, for black powder or whatever.
I powder coat, so I tend to run my alloys softer for pistol loads, and harder as necessary for rifles.
