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5.56RifleGuy · March 7, 2013, 11:57 PM

Its due to all the lead. If you shoot lots of rounds everyday or work with the stuff all the time, you can have a build up of lead in your system. Its not nearly as harmful for the casual shooter.

March 7, 2013, 11:57 PM	#4
5.56RifleGuy Senior Member Join Date: May 9, 2010 Location: USA Posts: 1,212	Its due to all the lead. If you shoot lots of rounds everyday or work with the stuff all the time, you can have a build up of lead in your system. Its not nearly as harmful for the casual shooter.