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Rifles, Reloading, Optics, Equipment
Reloading
Quick Load advice
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<blockquote data-quote="Mikecr" data-source="post: 2614349" data-attributes="member: 1521"><p>I believe that people want OBT to work so badly (because then it would represent a shortcut), that they put a lot of effort into convincing themselves that it does work (even where it clearly does not).</p><p>It is misnomer'd to begin in that OBT theoretically shows timing you DO NOT want a bullet to exit with. That is, when a vibration is at the muzzle.</p><p>Given this, it should be called detrimental barrel timing (DBT).</p><p>In no way does it imply where a bullet SHOULD exit between the points it should not. Only a target result can tell you that.</p><p></p><p>So between all the vibration points traveling back and forth, and where a target result tells you that you're in a barrel node, you can always find that you're 'close' to one of them vibration points. This seems enough to convince people who desperately want OBT to work -that it does.</p><p>But you can play with loads in QL, while you hold actual target results in hand, and see that OBT is utterly useless for prediction.</p><p></p><p>Vibrations of every sort and source sum in contribution to a barrel node. You cannot just hang a hat on a single vibration to represent a sum of them. You will always have to shoot for result.</p></blockquote><p></p>
[QUOTE="Mikecr, post: 2614349, member: 1521"] I believe that people want OBT to work so badly (because then it would represent a shortcut), that they put a lot of effort into convincing themselves that it does work (even where it clearly does not). It is misnomer'd to begin in that OBT theoretically shows timing you DO NOT want a bullet to exit with. That is, when a vibration is at the muzzle. Given this, it should be called detrimental barrel timing (DBT). In no way does it imply where a bullet SHOULD exit between the points it should not. Only a target result can tell you that. So between all the vibration points traveling back and forth, and where a target result tells you that you're in a barrel node, you can always find that you're 'close' to one of them vibration points. This seems enough to convince people who desperately want OBT to work -that it does. But you can play with loads in QL, while you hold actual target results in hand, and see that OBT is utterly useless for prediction. Vibrations of every sort and source sum in contribution to a barrel node. You cannot just hang a hat on a single vibration to represent a sum of them. You will always have to shoot for result. [/QUOTE]
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Quick Load advice
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