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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
How accurate are angle cosine indicators?
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<blockquote data-quote="Darryl Cassel" data-source="post: 17417" data-attributes="member: 34"><p>Made one from a Protractor and small bubble level. Attached it to the straight edge of the stock on the big 338/416 Rigby IMP.</p><p>It works fine. </p><p></p><p>Have four sets of drop charts I use that are also attached to the side of the stock. One at level shooting, one at 10 degrees another at 20 degrees and one at 30 degrees.</p><p>There is a difference in drops especially at every 10 degree increment from a level plane. </p><p></p><p>We find that, a spotter shot fired first will eleminate most any variance in drop or windage though as you can adjust to the impact and then swing back to the animal and kill it quickly. In most cases we don't use the incline indicator.</p><p></p><p>For those wanting to make a first shot hit at extreme range, you better know the wind patterns real good and this usually takes many years to "try" to figure out. Most never do figure it out.</p><p>The elevation indicator won't help a bit if a person don't know the wind "first".</p><p></p><p>Later</p><p>DC <img src="http://images/icons/smile.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>[ 11-26-2003: Message edited by: Darryl Cassel ]</p></blockquote><p></p>
[QUOTE="Darryl Cassel, post: 17417, member: 34"] Made one from a Protractor and small bubble level. Attached it to the straight edge of the stock on the big 338/416 Rigby IMP. It works fine. Have four sets of drop charts I use that are also attached to the side of the stock. One at level shooting, one at 10 degrees another at 20 degrees and one at 30 degrees. There is a difference in drops especially at every 10 degree increment from a level plane. We find that, a spotter shot fired first will eleminate most any variance in drop or windage though as you can adjust to the impact and then swing back to the animal and kill it quickly. In most cases we don't use the incline indicator. For those wanting to make a first shot hit at extreme range, you better know the wind patterns real good and this usually takes many years to "try" to figure out. Most never do figure it out. The elevation indicator won't help a bit if a person don't know the wind "first". Later DC [img]images/icons/smile.gif[/img] [ 11-26-2003: Message edited by: Darryl Cassel ] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Long Range Scopes and Other Optics
How accurate are angle cosine indicators?
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