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Long Range Hunting & Shooting
throw a bullet ?
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<blockquote data-quote="Coyote_Hunter" data-source="post: 1844942" data-attributes="member: 110773"><p>When a bullet leaves a barrel it has a specific vector (velocity and direction). It will continue to move along that vector unless an external force (wind, gravity, etc.) acts on the bullet and changes it's vector. Let's ignore air resistance for a moment.</p><p></p><p>Einstein's Special Theory of Relativity states that there is no difference whether the shooter is in motion (via car or helicopter or whatever) and the target is motionless or the target is in motion and the shooter is motionless.</p><p></p><p>A motionless shooter has to lead a bird because it has forward motion relative to the shooter and the bullet takes time to traverse the distance from the barrel to the bird. If the bird was suspended motionless in the air and the shooter was moving backward (relative to the bird), the lead (relative to the bird) would be the same. To the shooter, this would appear to be a lag.</p><p></p><p>Now reverse the situation. The bird is flying backward (very unusual bird!) and the shooter is motionless. The shooter would still need to lead the bird (relative to the bird's direction of travel) to allow the bullet time to travel to the bird's future location. But the bird flying backward relative to a motionless shooter is no different than the shooter moving forward with the bird motionless. The shooter would still aim as if it was the bird that was moving. From the moving shooter's perspective, a lag would be required.</p><p></p><p>The point is that in each case, and ignoring external forces like air resistance and gravity, etc.) the bullet travels in a straight line from the moment it leaves the barrel. It won't bend around an obstruction between the barrel at the time the bullet leaves the barrel and the point of aim (future location of the bird).</p></blockquote><p></p>
[QUOTE="Coyote_Hunter, post: 1844942, member: 110773"] When a bullet leaves a barrel it has a specific vector (velocity and direction). It will continue to move along that vector unless an external force (wind, gravity, etc.) acts on the bullet and changes it’s vector. Let’s ignore air resistance for a moment. Einstein’s Special Theory of Relativity states that there is no difference whether the shooter is in motion (via car or helicopter or whatever) and the target is motionless or the target is in motion and the shooter is motionless. A motionless shooter has to lead a bird because it has forward motion relative to the shooter and the bullet takes time to traverse the distance from the barrel to the bird. If the bird was suspended motionless in the air and the shooter was moving backward (relative to the bird), the lead (relative to the bird) would be the same. To the shooter, this would appear to be a lag. Now reverse the situation. The bird is flying backward (very unusual bird!) and the shooter is motionless. The shooter would still need to lead the bird (relative to the bird’s direction of travel) to allow the bullet time to travel to the bird’s future location. But the bird flying backward relative to a motionless shooter is no different than the shooter moving forward with the bird motionless. The shooter would still aim as if it was the bird that was moving. From the moving shooter’s perspective, a lag would be required. The point is that in each case, and ignoring external forces like air resistance and gravity, etc.) the bullet travels in a straight line from the moment it leaves the barrel. It won’t bend around an obstruction between the barrel at the time the bullet leaves the barrel and the point of aim (future location of the bird). [/QUOTE]
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