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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5 Creedmoor seems to fast?
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<blockquote data-quote="westcliffe01" data-source="post: 824945" data-attributes="member: 35183"><p>So you set your station altitude to sea level ? If the ballistic software thinks you are at a lower altitude then the drag will be higher and the only way to overcome it is for the velocity to be higher.</p><p></p><p>Which model kestrel exactly do you have ? You might have been making the same mistake on every rodeo. It only matters if you care what it says the velocity is, if you want to correct that you might have to correct the elevation/pressure on your meter first.</p><p></p><p>from 4500 manual</p><p>"Starting with a known altitude for your location</p><p></p><p>You can obtain your altitude from a topographical map or local landmark. Google Earth is an excellent free program that provides the exact altitude for any given address: <a href="http://www.earth.google.com/" target="_blank">Google Earth</a>. </p><p>Set this value as your reference altitude on the BARO screen to determine your barometric pressure: </p><p>Press the "-" button to enter the reference setting mode. Press the ">" button to increase the reference altitude or "<" the button to decrease the reference altitude. </p><p></p><p>You will notice that the barometric pressure will change with changes in the reference altitude. Press the "-" button to exit the adjustment mode. Again, allow the Kestrel Meter to stabilize, then enter the value from the BARO screen as your reference pressure on the ALTITUDE screen by following the same procedure. Both readings are now accurate."</p></blockquote><p></p>
[QUOTE="westcliffe01, post: 824945, member: 35183"] So you set your station altitude to sea level ? If the ballistic software thinks you are at a lower altitude then the drag will be higher and the only way to overcome it is for the velocity to be higher. Which model kestrel exactly do you have ? You might have been making the same mistake on every rodeo. It only matters if you care what it says the velocity is, if you want to correct that you might have to correct the elevation/pressure on your meter first. from 4500 manual "Starting with a known altitude for your location You can obtain your altitude from a topographical map or local landmark. Google Earth is an excellent free program that provides the exact altitude for any given address: [URL="http://www.earth.google.com/"]Google Earth[/URL]. Set this value as your reference altitude on the BARO screen to determine your barometric pressure: Press the "-" button to enter the reference setting mode. Press the ">" button to increase the reference altitude or "<" the button to decrease the reference altitude. You will notice that the barometric pressure will change with changes in the reference altitude. Press the "-" button to exit the adjustment mode. Again, allow the Kestrel Meter to stabilize, then enter the value from the BARO screen as your reference pressure on the ALTITUDE screen by following the same procedure. Both readings are now accurate." [/QUOTE]
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6.5 Creedmoor seems to fast?
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