Before you buy a Moultrie Game Camera Security Box, watch this video.  You will have second thoughts once you see how easily they can be popped open.  I'm a fan of Moultrie's game cameras, but after seeing this video, I won't be investing in any of their security boxes until they go through a major redesign.

I recommend you look at CamLockBox or another security box manufacturer.  I own some CamLockBox security boxes, and they are solid.