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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Rangefinder’s inclinations/declinations
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<blockquote data-quote="Mikecr" data-source="post: 2839963" data-attributes="member: 1521"><p>That's good.</p><p>Per Sierra, and with sound basis, the ballistic adjustment for slope shooting applies to PATH.</p><p>It is PATH + (DROP + (-(DROP*(1-COS(DegAngle*PI()/180)))))</p><p></p><p>Just wanted folks to know there is more to this(and different) than a simple adjusted horizontal difference in range.</p><p>I have seen that golfing laser ranging, adjusting for 'true' distance, is dead wrong for golf shots.</p><p>For analogy, for golfing, the elevation difference range adjustment to target changes whether uphill or downhill.</p><p>For a green 20yds higher than my position, I should increase my shot yardage by [1/3 of 20](~6.7yds).</p><p>For a green 20yds lower than my position, I should reduce my shot yardage by [1/4 of 20](5yds).</p><p></p><p>I realize golf is different, and that the POA hold is lower with shooting at either +/- slope.</p><p>But (DROP) is affected similar to a golf shot..</p><p>We don't use DROP, but rather PATH. However, DROP is included in calculating PATH.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 2839963, member: 1521"] That's good. Per Sierra, and with sound basis, the ballistic adjustment for slope shooting applies to PATH. It is PATH + (DROP + (-(DROP*(1-COS(DegAngle*PI()/180))))) Just wanted folks to know there is more to this(and different) than a simple adjusted horizontal difference in range. I have seen that golfing laser ranging, adjusting for 'true' distance, is dead wrong for golf shots. For analogy, for golfing, the elevation difference range adjustment to target changes whether uphill or downhill. For a green 20yds higher than my position, I should increase my shot yardage by [1/3 of 20](~6.7yds). For a green 20yds lower than my position, I should reduce my shot yardage by [1/4 of 20](5yds). I realize golf is different, and that the POA hold is lower with shooting at either +/- slope. But (DROP) is affected similar to a golf shot.. We don't use DROP, but rather PATH. However, DROP is included in calculating PATH. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
Rangefinder’s inclinations/declinations
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