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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
9 o'clock vs. 3 o'clock wind drifts different with same wind velocity???
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<blockquote data-quote="ken snyder" data-source="post: 615454" data-attributes="member: 26019"><p>SBruce I will give it a whir. If a scope has 1/4 moa adjustment clicks there is no guarantee that one will be at the scopes true zero poi ( no wind or anything just angles) the most a 1/4 moa click can be off is 1/2 the value or with a 1/4 moa scope it would be 1/8 moa a 1/8 moa scope would be 1/16th of a moa and so forth the reason it wont get any bigger than that adjustment wise is that if it is more than half its adjustment then flipping either one way or the other depending which way it needs to go will reduce the aim point error. If we take take a 3/16 moa that is too much to the right and click it back to the left it becomes 1/16th not enough to the left which is closer to true zero than than the origional 3/16 ths off. without having a precise favor and knowing what it looks like at long range the guaranteed aim point can be no better than the the origional 1/4 moa. But it gets better even yet.</p><p></p><p>moa is an angle not a distance like miliradians, If you put a book up against a wall laying down and start raising the end closest to the wall it gets further away from the wall with every degree that end is picked up and the trajectory starts making a large oval taller than it is wide because it is not known whether the verticle is too high or two low, so here we have about an 8 inch circle for certainty and as the yardages increase it starts to get bigger even faster because now we are playing yard darts too and the less of a vertical target the bullet will see kind of like leaning back a flat target at a 45 degree angle( an eccentric radius for lack of better words) The combination works about to 8 inches with a 1/4 moa scope at about 1550 yards. This is from practical shooting experience from making bases and rings that have been adjusted to optical center and impact coinciding. (from your scopes point of opinion)</p></blockquote><p></p>
[QUOTE="ken snyder, post: 615454, member: 26019"] SBruce I will give it a whir. If a scope has 1/4 moa adjustment clicks there is no guarantee that one will be at the scopes true zero poi ( no wind or anything just angles) the most a 1/4 moa click can be off is 1/2 the value or with a 1/4 moa scope it would be 1/8 moa a 1/8 moa scope would be 1/16th of a moa and so forth the reason it wont get any bigger than that adjustment wise is that if it is more than half its adjustment then flipping either one way or the other depending which way it needs to go will reduce the aim point error. If we take take a 3/16 moa that is too much to the right and click it back to the left it becomes 1/16th not enough to the left which is closer to true zero than than the origional 3/16 ths off. without having a precise favor and knowing what it looks like at long range the guaranteed aim point can be no better than the the origional 1/4 moa. But it gets better even yet. moa is an angle not a distance like miliradians, If you put a book up against a wall laying down and start raising the end closest to the wall it gets further away from the wall with every degree that end is picked up and the trajectory starts making a large oval taller than it is wide because it is not known whether the verticle is too high or two low, so here we have about an 8 inch circle for certainty and as the yardages increase it starts to get bigger even faster because now we are playing yard darts too and the less of a vertical target the bullet will see kind of like leaning back a flat target at a 45 degree angle( an eccentric radius for lack of better words) The combination works about to 8 inches with a 1/4 moa scope at about 1550 yards. This is from practical shooting experience from making bases and rings that have been adjusted to optical center and impact coinciding. (from your scopes point of opinion) [/QUOTE]
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9 o'clock vs. 3 o'clock wind drifts different with same wind velocity???
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