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Old 08-05-2005, 05:55 AM
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eldeguello
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Default RE: Big drop from 50 to 100 Yards...

ORIGINAL: jcchartboy

Bigcountry,

Just so I understand this....The height of your scope mounts effects the trajectory of a bullet between 50 and 100yds?Or is that not what you meant to imply?
No, the actual trajectory of the bullet in relation to the center of the bore of the rifle is unaffected, BUT the apparent trajectory in relation to the line of sight changes depending upon the height of the scope above the center of the bore. Thebullet has to rise more to cross a higher line of sight for the first time, than it does to cross a lower one the first time (ascending). Since the ANGLEbetween the line of thebore and the line of sight is greater, the bullet will rise to a higher "maximum ordinate" enroute to the spot where it crosses the line of sight the second (descending) time. Therefore, the spot where it crosses the second time is further downrange than it would be for ascope mountedlower, giving the effect of a flatter trajectory. The actual path of the bullet from muzzle to the earth is the same either way. What has changed is the angle between the center of the bore and the earth -the bore is pointing higher if the scope is mounted higher!
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