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Old January 31, 2013, 05:00 PM   #4
Jim Watson
Senior Member
Join Date: October 25, 2001
Location: Alabama
Posts: 14,155
Most likely it means the scope has 40 MOA elevation travel and 40 MOA windage travel. Note that this is the total from end to end. If you are zeroed at say 100 yards with the adjustments centered, you only have 20 MOA of movement to get to longer range. Which is why you see scope bases with 20 MOA of taper.
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