Thanks to all of those who has supplied information concerning lead blood level. I believe the most common practices to decrease lead levels is to wear latex gloves during any reloading and brass handling (except at the loading table and shooting), wash hands with cold water, don’t handle food, don’t rub your eyes or suck on your thumb after handling bullets.
With all of this in mind, I purchased some lead swab kits from Amazon. I have tested my reloading room and all the equipment in it, door handles, shooting cart, pants and shirt after shooting a match, truck seats and steering wheel --- no lead.
I swabbed some spent brass – LEAD. So I purchased a wet tumbler and tumbled brass for a hour in hot water and a bit of dawn, drained and tumbled for a hour with only water, rinsed – small traces of lead on each cartridge. Put them in my dry tumbler with kitty litter for 1 hour and still a slight amount of lead.
Any time I handle brass or bullets, I have latex gloves. Any activity with dry tumbling mask, gloves and glasses.
Based upon this, I would conclude that with good handling practices as has been mentioned above, a very large part of my lead exposure is occurring at the firing line. Not sure how to decrease that risk much other than stay out of building when others are shooting, stay upwind, and stay back from shooter when they are shooting (but then you look like a slacker).
Any other suggestions?