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Long Range Hunting & Shooting
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<blockquote data-quote="Len Backus" data-source="post: 161061" data-attributes="member: 1"><p>Lefty</p><p></p><p>I'll let others go into the exact calculations, but out to 500 yards there won't be more than a couple of inches of change in POI unless your uphill/downhill angle is a lot more than 20 degrees...which is really pretty steep for most western hunting in hilly country at a distance as great as 500 yards. </p><p></p><p>To correct, you would aim those couple of inches lower than normal. The reason for this is that the gravity vector operates on the bullet in a direction not quite perpendicular to the bullet's flight. Therefor the bullet doesn't drop quite as fast as it traverses the 500 yard distance.</p><p></p><p>Think of it this way. Hold your right arm out parallel with the ground while hanging a 20 pound weight from your hand. Notice how much effort it takes at this angle. Now move your arm's angle to be 45 degrees. You'll notice it takes less effort to hold the same 10 pound weight.</p></blockquote><p></p>
[QUOTE="Len Backus, post: 161061, member: 1"] Lefty I'll let others go into the exact calculations, but out to 500 yards there won't be more than a couple of inches of change in POI unless your uphill/downhill angle is a lot more than 20 degrees...which is really pretty steep for most western hunting in hilly country at a distance as great as 500 yards. To correct, you would aim those couple of inches lower than normal. The reason for this is that the gravity vector operates on the bullet in a direction not quite perpendicular to the bullet's flight. Therefor the bullet doesn't drop quite as fast as it traverses the 500 yard distance. Think of it this way. Hold your right arm out parallel with the ground while hanging a 20 pound weight from your hand. Notice how much effort it takes at this angle. Now move your arm's angle to be 45 degrees. You'll notice it takes less effort to hold the same 10 pound weight. [/QUOTE]
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