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Long Range Hunting & Shooting
Scratching my head.... SET ME STRAIGHT
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<blockquote data-quote="dougduey" data-source="post: 2091777" data-attributes="member: 33159"><p>I'll throw another possibility in the ring. Had this from personal experience when I took a long range shooting class and used my 6.5-284 Norma. Hand loads with the 140 VLD Berger at 2997 fps. It was t until we started shooting steel at 800-1070 yards that we found I was consistently high. My instructor made adjustments into his Kestrel and from there, I started getting hits. I can't remember exactly what the Kestrel adjusted to, but my instructor said it was either an increase in BC or almost close to 200 fps in velocity. Since I knew my hand loads had single digit ES, I ruled that out. </p><p></p><p>Then my instructor said I want to test your scope. He pulled out a tall target and shot a group (at 100 yards) then dialed up 20 moa and shot another group. We found that I was 1.5" higher than it should be at 20 moa. He did the math and it was a 6% error in elevation tracking. I made that adjustment in my ballistics software and it was dead on from there. I ended up calling Zeiss and sent my V6 in because I was t happy. A few weeks later they sent me a new scope. I was also shooting my 7 STW that day. It has a NF NXS on it. It was dead on to 1070 yards, so no tracking issues. </p><p>Moral to the story for me was to start doing a tall target test on all of my scopes. I would have never known I had any issue unless I had shot past 700 yards. </p><p>I'm willing to bet it's your scope and you're not getting the velocity the drop data is telling you. But, I could be wrong. </p><p></p><p>Like everyone else, I'd like to know the outcome.</p></blockquote><p></p>
[QUOTE="dougduey, post: 2091777, member: 33159"] I’ll throw another possibility in the ring. Had this from personal experience when I took a long range shooting class and used my 6.5-284 Norma. Hand loads with the 140 VLD Berger at 2997 fps. It was t until we started shooting steel at 800-1070 yards that we found I was consistently high. My instructor made adjustments into his Kestrel and from there, I started getting hits. I can’t remember exactly what the Kestrel adjusted to, but my instructor said it was either an increase in BC or almost close to 200 fps in velocity. Since I knew my hand loads had single digit ES, I ruled that out. Then my instructor said I want to test your scope. He pulled out a tall target and shot a group (at 100 yards) then dialed up 20 moa and shot another group. We found that I was 1.5” higher than it should be at 20 moa. He did the math and it was a 6% error in elevation tracking. I made that adjustment in my ballistics software and it was dead on from there. I ended up calling Zeiss and sent my V6 in because I was t happy. A few weeks later they sent me a new scope. I was also shooting my 7 STW that day. It has a NF NXS on it. It was dead on to 1070 yards, so no tracking issues. Moral to the story for me was to start doing a tall target test on all of my scopes. I would have never known I had any issue unless I had shot past 700 yards. I’m willing to bet it’s your scope and you’re not getting the velocity the drop data is telling you. But, I could be wrong. Like everyone else, I’d like to know the outcome. [/QUOTE]
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Scratching my head.... SET ME STRAIGHT
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