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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Message to Shawn Carlock from DUH
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<blockquote data-quote="Down Under Hunter" data-source="post: 185582" data-attributes="member: 8486"><p>Shawn,</p><p></p><p>Yes I am shooting accross a draw that drops around 200 ft then rise to the target at about the same height as I shoot from. The heads of the trees in the draw I shoot accross are at around the 750 m mark. The breeze was good and steady hitting me on the nose straight on.</p><p></p><p>I checked the kestrel and pressed the sequence of buttons and it showed zero with a blinking (ref ) , I quess that stands for reference. Tonite I get sittng at home 29.77 inHg ? My alt at my house is 140 ft currently.</p><p></p><p>I checked the conditions from the previous shoot. I was firing from a different position at the same gong, but the distance was 700M. Guess what ? The wind was also solid 4-5 mph from 12 oclock. The shot travels over the same draw. Exbal came back with 16. 5 moa up. I ended up shooting 14 moa up in real bad mirage and landed the 3 shot cluster about 4 " dead centre high of the black circle. This really suggests that the shots travelling over the draw in a head wind most likely are getting around 2 moa lift ? Does that seem logical ?</p><p></p><p>I also had a 415 gong out that day and shot across the same draw. exbal gave 7.5 up in the mirage. I ended up shooting 6.5 up and still was 10.5 " high of centre. Maybe a combination of mirage and lift ?</p><p></p><p>The same day I fired at a 340 m target that is .99 cosine down hill with no draw to cross. Hit dead centre ?</p><p></p><p>Maybe I should try and set up a long flat shot at 1000 and take the draw out of the equation to see if the pda agrees with the strikes. I would have thought that should conclusively tell me if the draw I'm firing across is causing the lift ?</p><p></p><p>Shawn, </p><p></p><p>What figure do you use in the scope height above bore. I put in 1.5 " ?? BC is .768</p><p></p><p>Eaglet,</p><p></p><p>It sure makes you strut around a little when you hit your first 1000 + target in the lungs.</p><p></p><p>Cheers</p><p></p><p>DUH</p></blockquote><p></p>
[QUOTE="Down Under Hunter, post: 185582, member: 8486"] Shawn, Yes I am shooting accross a draw that drops around 200 ft then rise to the target at about the same height as I shoot from. The heads of the trees in the draw I shoot accross are at around the 750 m mark. The breeze was good and steady hitting me on the nose straight on. I checked the kestrel and pressed the sequence of buttons and it showed zero with a blinking (ref ) , I quess that stands for reference. Tonite I get sittng at home 29.77 inHg ? My alt at my house is 140 ft currently. I checked the conditions from the previous shoot. I was firing from a different position at the same gong, but the distance was 700M. Guess what ? The wind was also solid 4-5 mph from 12 oclock. The shot travels over the same draw. Exbal came back with 16. 5 moa up. I ended up shooting 14 moa up in real bad mirage and landed the 3 shot cluster about 4 " dead centre high of the black circle. This really suggests that the shots travelling over the draw in a head wind most likely are getting around 2 moa lift ? Does that seem logical ? I also had a 415 gong out that day and shot across the same draw. exbal gave 7.5 up in the mirage. I ended up shooting 6.5 up and still was 10.5 " high of centre. Maybe a combination of mirage and lift ? The same day I fired at a 340 m target that is .99 cosine down hill with no draw to cross. Hit dead centre ? Maybe I should try and set up a long flat shot at 1000 and take the draw out of the equation to see if the pda agrees with the strikes. I would have thought that should conclusively tell me if the draw I'm firing across is causing the lift ? Shawn, What figure do you use in the scope height above bore. I put in 1.5 " ?? BC is .768 Eaglet, It sure makes you strut around a little when you hit your first 1000 + target in the lungs. Cheers DUH [/QUOTE]
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