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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Nightforce problems.???
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<blockquote data-quote="Brent" data-source="post: 14778" data-attributes="member: 99"><p>I'm not sure I follow you completely.</p><p></p><p>This is the drop chart the Oehler Ballistic Explorer gives me for a BC of .507 at 3380 fps at standard conditions.</p><p></p><p>100= -8.7MOA</p><p>200= -7.7</p><p>300= -6.2</p><p>400= -4.4</p><p>500= -2.3</p><p>600= 0.0</p><p>700= +2.5</p><p>800= +5.4</p><p>900= +8.5</p><p>1000= +12.0</p><p></p><p>I guess I expected to see the 100 yard increments fall on the 2 MOA tic marks magically. </p><p></p><p>Take the 800 yard hold over amount of +5.4MOA for example, are you supposed to hold 2 ticks (2 MOA per tic) above for 4 MOA and estimate the other 1.4 seeing's how the next tic is at 6 MOA? </p><p></p><p><strong>When you get the load tuned right, the reticle will be more accurate than the 1/4 moa click resolution on the scope!</strong></p><p></p><p>Can you explain how? I don't see why.</p><p></p><p><strong>The vertical shot tic mark, ( the very top line in the R2 is nothing more than the sight line which is parallel to the bore line when the scope is zeroed @ 600 and on full power.</strong></p><p></p><p>The program indicates 71.45" of drop at 600 yards. The bullet would hit around 11.45" low if the 10 moa tic mark above the center crosshair was was following the bore, true?</p><p></p><p>11.37 MOA is needed to account for the 71.45" of drop at 600 yards is all I'm trying to say, so it would appear that the bore line is somewhat higher than the 10 MOA tic mark if actually zeroed at 600 yards. It is close though. Correct me if I'm wrong.</p><p></p><p><strong>The 220 smk is too heavy to integrate with the reticle below 6,000 ft. altitude</strong></p><p></p><p>What happens if it is used? Does the 100 yard hold under go beyond the 10 moa tic mark?</p><p></p><p><strong>We have to find you a load with the 180 that will get you between 3360 and 3400. </strong></p><p></p><p>Can you explain why the 3200 fps load will not work as well.</p><p></p><p>Sounds very interesting so far. Thanks</p></blockquote><p></p>
[QUOTE="Brent, post: 14778, member: 99"] I'm not sure I follow you completely. This is the drop chart the Oehler Ballistic Explorer gives me for a BC of .507 at 3380 fps at standard conditions. 100= -8.7MOA 200= -7.7 300= -6.2 400= -4.4 500= -2.3 600= 0.0 700= +2.5 800= +5.4 900= +8.5 1000= +12.0 I guess I expected to see the 100 yard increments fall on the 2 MOA tic marks magically. Take the 800 yard hold over amount of +5.4MOA for example, are you supposed to hold 2 ticks (2 MOA per tic) above for 4 MOA and estimate the other 1.4 seeing's how the next tic is at 6 MOA? [B]When you get the load tuned right, the reticle will be more accurate than the 1/4 moa click resolution on the scope![/B] Can you explain how? I don't see why. [B]The vertical shot tic mark, ( the very top line in the R2 is nothing more than the sight line which is parallel to the bore line when the scope is zeroed @ 600 and on full power.[/B] The program indicates 71.45" of drop at 600 yards. The bullet would hit around 11.45" low if the 10 moa tic mark above the center crosshair was was following the bore, true? 11.37 MOA is needed to account for the 71.45" of drop at 600 yards is all I'm trying to say, so it would appear that the bore line is somewhat higher than the 10 MOA tic mark if actually zeroed at 600 yards. It is close though. Correct me if I'm wrong. [B]The 220 smk is too heavy to integrate with the reticle below 6,000 ft. altitude[/B] What happens if it is used? Does the 100 yard hold under go beyond the 10 moa tic mark? [B]We have to find you a load with the 180 that will get you between 3360 and 3400. [/B] Can you explain why the 3200 fps load will not work as well. Sounds very interesting so far. Thanks [/QUOTE]
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