08-28-07, 01:45 PM
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#4
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Navy Seal 
Join Date: Nov 2006
Location: Docked on a Russian pond
Posts: 7,072
Downloads: 2
Uploads: 0
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Use the periscope without magnification. The sea should be relatively smooth. You can also see by the way your target behaves. If it's not pitching, conditions probably ok for DG.
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