Practice, practice, practice.............
Once you get used to the incriments of the hashmarks, and know the ship type, you can get a fairly accurate guess as to the range of a particular target. knowing the ship type is the key. You have to memorize the ship I.D. book to get that good. But that's a lot of ships to memorize, considering all the other things we have to do in our daily routines.
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A legislative act contrary to the Constitution is not law.
-John Marshall Chief Justice of the Supreme Court
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