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The Basics, Starting Out
20 MOA Base
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<blockquote data-quote="MkJose" data-source="post: 1627237" data-attributes="member: 107218"><p>Sometimes people forget the principle of a canted rail. If your scope has 80MOA of total adjustment, this means that at mechanical 0, provided the mount and rings are able to hold the scope parallel to the bore, you have 40MOA down and 40MOA up at the bore. Using a canted 20MOA rail simply shifts this balance to 20MOA down and 60MOA up. Of course, if you mount the rail the wrong way, you end up with 60MOA down and 20MOA up. (This is only useful if you're shooting from a mountain top or a high building.)</p><p></p><p>For your purposes, 60MOA of up elevation should cover all your shooting needs, well, up to about a mile or two. You will probably need several MOAs to get to 100 yards, especially if all the pieces are not perfect. But once there, you will still have 50MOAs or more, provided you don't have lots of windage on the scope.</p><p></p><p>The only time you need to worry about not getting a 100yard zero using a canted rail is if the rail has more cant that one half of the adjustment range. Say your scope has 30MOA of adjustment range, 15Down/15Up. A 20 MOA rail will shift that to -5Down/35Up.</p></blockquote><p></p>
[QUOTE="MkJose, post: 1627237, member: 107218"] Sometimes people forget the principle of a canted rail. If your scope has 80MOA of total adjustment, this means that at mechanical 0, provided the mount and rings are able to hold the scope parallel to the bore, you have 40MOA down and 40MOA up at the bore. Using a canted 20MOA rail simply shifts this balance to 20MOA down and 60MOA up. Of course, if you mount the rail the wrong way, you end up with 60MOA down and 20MOA up. (This is only useful if you're shooting from a mountain top or a high building.) For your purposes, 60MOA of up elevation should cover all your shooting needs, well, up to about a mile or two. You will probably need several MOAs to get to 100 yards, especially if all the pieces are not perfect. But once there, you will still have 50MOAs or more, provided you don't have lots of windage on the scope. The only time you need to worry about not getting a 100yard zero using a canted rail is if the rail has more cant that one half of the adjustment range. Say your scope has 30MOA of adjustment range, 15Down/15Up. A 20 MOA rail will shift that to -5Down/35Up. [/QUOTE]
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The Basics, Starting Out
20 MOA Base
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