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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
need scope help
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<blockquote data-quote="SBruce" data-source="post: 480833" data-attributes="member: 21068"><p>It's not as hard as it may look, I promise. Very simple for ranging and holdover.</p><p> </p><p>On 22X, the vertical spacing between marks should be 2 MOA. Horizontal should be 5 MOA.</p><p> </p><p>On 11X, those same brackets will now cover twice the area. 4 MOA vertical, and 10 MOA horizontal.</p><p> </p><p>On 5.5X, the spacing will be 8 vertical, 20 horizontal.</p><p> </p><p>S/M=D..............size of target / moa covered in scope = distance to target </p><p>MxD=S.............moa covered in scope x distance to target = size of target</p><p>C/D=M...........correction needed at distance/same distance = moa to hold high. This one works for wind too.</p><p> </p><p>Example: Rangefinder batteries died. Deer measure about 20" back to belly, you see a deer that covers 4 moa in the scope. So, 20/4=5............deer is approx 500 yds away.</p><p> </p><p>Example 2: You know the distance to same deer is 500 yds from your laser rangefinder, but you don't know how tall his rack is. His rack covers 4 moa in scope. So, 5X4=20.............deer's rack is approx 20 inches tall.</p><p> </p><p>Example3: You know that the 15 mph wind is going to blow your bullet off 25" at 500 yds. So, 25/5=5............you need to hold 5moa into the wind to hit the deer with the 20" rack at 500 yds. You've done all this without dialing a single knob on the scope.</p><p> </p><p>Hope this helped.</p></blockquote><p></p>
[QUOTE="SBruce, post: 480833, member: 21068"] It's not as hard as it may look, I promise. Very simple for ranging and holdover. On 22X, the vertical spacing between marks should be 2 MOA. Horizontal should be 5 MOA. On 11X, those same brackets will now cover twice the area. 4 MOA vertical, and 10 MOA horizontal. On 5.5X, the spacing will be 8 vertical, 20 horizontal. S/M=D..............size of target / moa covered in scope = distance to target MxD=S.............moa covered in scope x distance to target = size of target C/D=M...........correction needed at distance/same distance = moa to hold high. This one works for wind too. Example: Rangefinder batteries died. Deer measure about 20" back to belly, you see a deer that covers 4 moa in the scope. So, 20/4=5............deer is approx 500 yds away. Example 2: You know the distance to same deer is 500 yds from your laser rangefinder, but you don't know how tall his rack is. His rack covers 4 moa in scope. So, 5X4=20.............deer's rack is approx 20 inches tall. Example3: You know that the 15 mph wind is going to blow your bullet off 25" at 500 yds. So, 25/5=5............you need to hold 5moa into the wind to hit the deer with the 20" rack at 500 yds. You've done all this without dialing a single knob on the scope. Hope this helped. [/QUOTE]
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