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Long Range Hunting & Shooting
Better Groups at Distance
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<blockquote data-quote="DocDoc" data-source="post: 1869385" data-attributes="member: 69144"><p>There are variations in velocity for each shot and barrel vibrations. At distance you can have a situation where the barrel is on the upswing for slow bullets and on the downswing for faster, thus positive compensation. At closer distance you don't detect the difference, but further away there can be a compensation from vibration and velocity that makes the group appear smaller than it should be based on the closer group. That is probably the case for the British .303.</p></blockquote><p></p>
[QUOTE="DocDoc, post: 1869385, member: 69144"] There are variations in velocity for each shot and barrel vibrations. At distance you can have a situation where the barrel is on the upswing for slow bullets and on the downswing for faster, thus positive compensation. At closer distance you don't detect the difference, but further away there can be a compensation from vibration and velocity that makes the group appear smaller than it should be based on the closer group. That is probably the case for the British .303. [/QUOTE]
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