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Long Range Hunting & Shooting
Flatness of trajectory
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<blockquote data-quote="Brown Dog" data-source="post: 11291" data-attributes="member: 1622"><p>Newbie,</p><p>Interesting thread! My head demonstrated rather low bandwidth reading all this -had to re-read everything a couple of times to get the issues straight in my head!</p><p> </p><p>Range (mis)estimation would appear to be the root of all problems that could arise in your scenarios. Determining the opening range shouldn't be an issue if you have a laser; issues may arise if the target should move closer/further between obtaining the opening range and your 1st shot or between 1st and subsequent shots. </p><p></p><p>If range (mis)estimation –for whatever reason- is of concern to you, I think what you're after is the round that gives you the 'least plunging' trajectory at the ranges at which you are likely to shoot (ie what you're describing as the greatest 'danger space'.)</p><p></p><p></p><p>GEG,</p><p>I must say that I too was a little confused by the use of the term 'danger space' here. </p><p>It is a military term used in the context of machinegun or harassing sniper fire. </p><p>It's similar to the idea of 'beaten zone' but takes account of targets being vertical rather than horizontal; so (in very ballpark terms) with a centre hold on an avg 5.5ft man, the danger space for a 308 with sights set at 800yds would start if he was actually standing at 700-and-a-bit yds (ie the trajectory would start to clip the top of his head) and end if he were actually standing at 850-and-a-bit yds (ie it would clip his toes). </p><p>I think what's being referred to here is 'the ranges between which the trajectory will remain in the animal's vital area at a given sight setting' which is not the same as the military concept of 'danger space', but 'danger space' certainly sounds sexier! <img src="http://images/icons/smile.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p><p></p><p>Dave,</p><p></p><p>Is this a warm-up for some more 'Rotation of the Earth' stuff?!</p><p></p><p>[ 06-26-2004: Message edited by: Brown Dog ]</p></blockquote><p></p>
[QUOTE="Brown Dog, post: 11291, member: 1622"] Newbie, Interesting thread! My head demonstrated rather low bandwidth reading all this -had to re-read everything a couple of times to get the issues straight in my head! Range (mis)estimation would appear to be the root of all problems that could arise in your scenarios. Determining the opening range shouldn’t be an issue if you have a laser; issues may arise if the target should move closer/further between obtaining the opening range and your 1st shot or between 1st and subsequent shots. If range (mis)estimation –for whatever reason- is of concern to you, I think what you’re after is the round that gives you the ‘least plunging’ trajectory at the ranges at which you are likely to shoot (ie what you’re describing as the greatest ‘danger space’.) GEG, I must say that I too was a little confused by the use of the term ‘danger space’ here. It is a military term used in the context of machinegun or harassing sniper fire. It’s similar to the idea of ‘beaten zone’ but takes account of targets being vertical rather than horizontal; so (in very ballpark terms) with a centre hold on an avg 5.5ft man, the danger space for a 308 with sights set at 800yds would start if he was actually standing at 700-and-a-bit yds (ie the trajectory would start to clip the top of his head) and end if he were actually standing at 850-and-a-bit yds (ie it would clip his toes). I think what’s being referred to here is ‘the ranges between which the trajectory will remain in the animal’s vital area at a given sight setting’ which is not the same as the military concept of ‘danger space’, but ‘danger space’ certainly sounds sexier! [img]images/icons/smile.gif[/img] Dave, Is this a warm-up for some more ‘Rotation of the Earth’ stuff?! [ 06-26-2004: Message edited by: Brown Dog ] [/QUOTE]
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