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Long Range Hunting & Shooting
How to measure on MOA picatinny rail?
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<blockquote data-quote="jsthntn247" data-source="post: 623070" data-attributes="member: 14894"><p>If you are trying to determine ring height, you better know your base height. I used the formula base height + ring height - scope outside diameter times .5. I have a night force 20 moa rail that measure .32 high. Based on that formula I knew I needed bases 1.15" high. I talked to a ring manufacturer that assured me their .97 rings were high enough so I ordered them even though my calculations said they would only give me .001 clearance. </p><p> Got them in yesterday and guess what... They were not high enough, had exactly .001 clearance at most. now I just hope I can swap them out. If you don't know, take them off and measure them and save yourself the head ache.</p></blockquote><p></p>
[QUOTE="jsthntn247, post: 623070, member: 14894"] If you are trying to determine ring height, you better know your base height. I used the formula base height + ring height - scope outside diameter times .5. I have a night force 20 moa rail that measure .32 high. Based on that formula I knew I needed bases 1.15" high. I talked to a ring manufacturer that assured me their .97 rings were high enough so I ordered them even though my calculations said they would only give me .001 clearance. Got them in yesterday and guess what... They were not high enough, had exactly .001 clearance at most. now I just hope I can swap them out. If you don't know, take them off and measure them and save yourself the head ache. [/QUOTE]
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How to measure on MOA picatinny rail?
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