From: "Tony Ingenoso" 

There are spiral bullet traps that deal with this.  The spiral trap slows
the bullet down gently rather than the old style angled steel plate trap.
Any newly constructed range should use the spiral variety.

A friend of mine that owns a couple of ranges has installed these, and
exhaust fans capable of exchanging all the air on the range in about 30
seconds.  No problems.

"Gary Wiltshire"  wrote in message
news:op.st8sfwhieipai0{at}news.barkto.com...
> ...
>
> Exposure to airborne and settled lead dust at the firing range puts
> employees, instructors and customers at risk of lead poisoning. In one
> case, an employee at a range in Northern California was found to have
> severe lead poisoning with a blood lead level of 76 ug/dl. Over a recent
> 18 month period, the Occupational Lead Poisoning Prevention Program of the
> California Department of Health Services worked intensively with 7 indoor
> firing ranges that had serious lead poisoning problems.
>
> ...
>
> http://www.dhs.ca.gov/ohb/OLPPP/pntblnk1.htm
>
> --
> Gary Wiltshire

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