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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Can somebody check my numbers
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<blockquote data-quote="Brent" data-source="post: 25453" data-attributes="member: 99"><p>Darryl,</p><p></p><p>Did you get those numbers from the Oehler program or was that your actual data from something you shoot that was close to his? </p><p></p><p>I ran the numbers on the Oehler program again and it would have to have a BC of 2.0 at that velocity or a velocity of 3600 fps at the .55 BC for the 3.6 moa to work out at 400 yards. </p><p></p><p>The other likely possibility is this, the bullet is still traveling in it's upward path as it crosses the 100 yard zero .2 moa low (it's first of two zero points) and hits .2 moa high at 400 yards. The second zero was actually at 140 yards before the scope was dialed up 16 clicks, or 4 moa. </p><p></p><p>As you know, the bullet crosses the LOS (line of sight) twice and the first time on it's way up, the second on it's way down and this has quite an effect on our close range zero if we're not carefull. This could be a big part of it here. The 100 yard zero, if correct should produce about 2" drop at 200 yards and 8" drop at 300 yards. </p><p></p><p>Good luck.</p></blockquote><p></p>
[QUOTE="Brent, post: 25453, member: 99"] Darryl, Did you get those numbers from the Oehler program or was that your actual data from something you shoot that was close to his? I ran the numbers on the Oehler program again and it would have to have a BC of 2.0 at that velocity or a velocity of 3600 fps at the .55 BC for the 3.6 moa to work out at 400 yards. The other likely possibility is this, the bullet is still traveling in it's upward path as it crosses the 100 yard zero .2 moa low (it's first of two zero points) and hits .2 moa high at 400 yards. The second zero was actually at 140 yards before the scope was dialed up 16 clicks, or 4 moa. As you know, the bullet crosses the LOS (line of sight) twice and the first time on it's way up, the second on it's way down and this has quite an effect on our close range zero if we're not carefull. This could be a big part of it here. The 100 yard zero, if correct should produce about 2" drop at 200 yards and 8" drop at 300 yards. Good luck. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Can somebody check my numbers
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