Always, as in the past I have had 3 serious incidents of elevated blood lead levels due to reloading cast lead bullets.
That's odd. I've cast and sized literally tens of thousands of cast lead bullets with bare hands and loaded thousands of them every year, too. I just wash my hands when I'm done - and I've never had any sign of elevated lead levels although I get checked yearly.
I also shoot outdoors 99% of the time. The only people I have met that had elevated lead levels were people who did a lot of indoor shooting. I don't believe handling cast bullets are nearly as much to blame for lead ingestion as poorply ventilated indoor shooting ranges. I talked to a gentleman from Edmonton Police Services who had been a firearms instructor and saw his levels spike - likely due to a large amount of time exposed to indoor ranges and mostly factory loaded jacketed bullets.