What is the worth of 'removing that threat'?
Over 2+ decades of moderately high volume INDOOR shooting, I am of the opinion that SHOOTING indoors has a lot higher "threat" of lead ingestion than my brass tumbler does.
Add to that finger-fondling lead bullets while manufacturing ammunition.
The other place you don't want to go is an OUTDOOR shooting range, because of lead bullets generating Lead Dust, wind stirring it up with ordinary dirt-dust, you breathe it.
Don't be downrange of those ranges either, because the wind blows it over properly lines.
I do not snort the dust out of my tumbler like it's Coke or Crank.
The "lead dust exposure" is real, yes, but it is wildly overblown for the sake of marketing and selling wet tumblers and the various magic potions you are also supposed to buy to go inside them.
You dump the lead-contaminated cleaning solution down the drain, where's it go?
The city sewer?
Your own septic tank or lagoon system?
Where does it show up after that?
When the municipality has to drain, dry, and clean out the solids from the sceptic sewer system water treatment plant every so often, airborne lead dust.
Hope you live upwind that day...........