2 January 2012, 12:36
Unless you fill them with earth or armour them up bullets will go right through. I did look at a disused quarry a few miles away. Thought of filling it with storage containers on top of each other, connecting them together and then covering them with earth. Would need ventilation though. So would need to be powered.
Skean Dhude
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It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change. - Charles Darwin
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It is not the strongest of the species that survives, nor the most intelligent that survives. It is the one that is the most adaptable to change. - Charles Darwin