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How safe is a cement wall?
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April 22, 2010, 02:36 PM
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Vulcan Classic
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Join Date: October 22, 2009
Posts: 14
How safe is a cement wall?
Using .30 ball ammo, how thick does the concrete have to be to stop the bullet? I think a standard poured retaining wall is just shy of 8". Is that enough?
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