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Hunting
Long Range Hunting & Shooting
Does recoil begin before the bullet exits the muzzle?
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<blockquote data-quote="Susquatch" data-source="post: 1673931" data-attributes="member: 31264"><p>This is essentially the 40 thou I referred to in my other post with your "fulcrum" chosen as the action simply because that's where the line of sight is anchored.</p><p></p><p>Yours is a very good way of looking at this issue.</p><p></p><p>I considered a much more complicated explanation but abandoned it in order to avoid boring most readers. However, since you have chosen to dive a little deeper, I think it's worth noting that the axis of the bore is not actually a line or axis while the bullet travels its length. It vibrates in several ways. Whipping at its forced natural frequency, longitudinally, torsionally, and internal sound waves (which make the barrel and bore fatter and skinnier). There are also multiple harmonic vibrations in each of these.</p><p></p><p>I would also point out that it isn't just the muzzle end that moves. The entire rifle and chamber end (including your fulcrum) also move during recoil (as well as other movements) all of which can amplify the resulting shift in POI.</p><p></p><p>To be frank, I think it's amazing that any rifle can ever hit anything with all that movement going on, let alone result in such a modest POI shift of just 6 MOA......</p></blockquote><p></p>
[QUOTE="Susquatch, post: 1673931, member: 31264"] This is essentially the 40 thou I referred to in my other post with your "fulcrum" chosen as the action simply because that's where the line of sight is anchored. Yours is a very good way of looking at this issue. I considered a much more complicated explanation but abandoned it in order to avoid boring most readers. However, since you have chosen to dive a little deeper, I think it's worth noting that the axis of the bore is not actually a line or axis while the bullet travels its length. It vibrates in several ways. Whipping at its forced natural frequency, longitudinally, torsionally, and internal sound waves (which make the barrel and bore fatter and skinnier). There are also multiple harmonic vibrations in each of these. I would also point out that it isn't just the muzzle end that moves. The entire rifle and chamber end (including your fulcrum) also move during recoil (as well as other movements) all of which can amplify the resulting shift in POI. To be frank, I think it's amazing that any rifle can ever hit anything with all that movement going on, let alone result in such a modest POI shift of just 6 MOA...... [/QUOTE]
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Does recoil begin before the bullet exits the muzzle?
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