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Long Range Hunting & Shooting
Need help calculating DOPE......
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<blockquote data-quote="SBruce" data-source="post: 565724" data-attributes="member: 21068"><p>My programs are saying you'd have to be 2.3 to 2.5 inches high at 200 to be dead on at 275. If I use 1.5 sight height or 2.5 sight height, it only makes .2" difference at 200 yds and still zero at 275.?</p><p> </p><p>I doesn' sound like you were hitting that high at 200, so something is still amiss IMO. Perhaps time to make sure your adjustments are correct with the scope by doing the box test.</p><p> </p><p>There's a simple way to test the elevation only, and that's to shoot a group with no scope adjustment, then dial up 5 mils and shoot another group. Now back down 5 mils and shoot another shot or two..............the two groups should be 18" apart at 100 yds and the last shot or two should be right in with the original or first group. If your groups are any further apart or closer for that matter, then the scope didn't move exactly 5 mils.</p><p> </p><p>I am assuming at this point that your scope adjustments are marked in mils and each click is 1/10th mil..??</p><p> </p><p>Once you've confirmed the adjustments, you can shoot at 300, (without dialing anything), record where you hit.</p><p>Then shoot at 400 without dialing anything, record where you hit. Measure the impact from the aiming point, then dial enough to make that exact change (example, 15" low at 400 equates to just a tad over 1 mil) dial up 1 mil and aim bullseye again. If everything is correct, you should hit the bullseye.</p><p> </p><p>I would want to know <u>for sure</u> that my dopes and scopes are correct before going after an elk.</p><p> </p><p>Good Luck</p></blockquote><p></p>
[QUOTE="SBruce, post: 565724, member: 21068"] My programs are saying you'd have to be 2.3 to 2.5 inches high at 200 to be dead on at 275. If I use 1.5 sight height or 2.5 sight height, it only makes .2" difference at 200 yds and still zero at 275.? I doesn' sound like you were hitting that high at 200, so something is still amiss IMO. Perhaps time to make sure your adjustments are correct with the scope by doing the box test. There's a simple way to test the elevation only, and that's to shoot a group with no scope adjustment, then dial up 5 mils and shoot another group. Now back down 5 mils and shoot another shot or two..............the two groups should be 18" apart at 100 yds and the last shot or two should be right in with the original or first group. If your groups are any further apart or closer for that matter, then the scope didn't move exactly 5 mils. I am assuming at this point that your scope adjustments are marked in mils and each click is 1/10th mil..?? Once you've confirmed the adjustments, you can shoot at 300, (without dialing anything), record where you hit. Then shoot at 400 without dialing anything, record where you hit. Measure the impact from the aiming point, then dial enough to make that exact change (example, 15" low at 400 equates to just a tad over 1 mil) dial up 1 mil and aim bullseye again. If everything is correct, you should hit the bullseye. I would want to know [U]for sure[/U] that my dopes and scopes are correct before going after an elk. Good Luck [/QUOTE]
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