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Long Range Hunting & Shooting
Can't find my spin drift or coriolis.
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<blockquote data-quote="Topshot" data-source="post: 315591" data-attributes="member: 13285"><p><span style="font-family: 'Arial'"><span style="font-size: 10px">lisagrantb</span></span></p><p> </p><p><span style="font-family: 'Arial'"><span style="font-size: 10px">I worked for a long time in Survey and have experience in setting up plate bubbles. The accuracy of a plate level is determined by the radius of its curved surface and the size of its bubble.</span></span></p><p> </p><p><span style="font-family: 'Arial'"><span style="font-size: 10px">The bubble on an anti-cant level is not a particularly accurate device. It is short and dumpy with a small radius curved surface. It is certainly not as accurate as the fine machinist level that you used to set up your scope.</span></span></p><p> </p><p><span style="font-family: 'Arial'"><span style="font-size: 10px">As a test, set up and level your rifle on uneven ground, using your anti-cant level and then check it against your machinist level. Do this three or four times and I am sure you will get different results each time you try it.</span></span></p><p> </p><p> <span style="font-family: 'Arial'"><span style="font-size: 10px">As another test. Move the anti-cant level bubble 1 or 2mm from its central position and then check out how much it puts your rifle off level using your machinist level. This will give you an idea of the sort of accuracy that you can expect from your anti-cant level when being used while shooting out in the field under real life conditions.</span></span></p><p><span style="font-family: 'Arial'"><span style="font-size: 10px">You should be able to measure the angular error from the deflection of the machinist level.</span></span></p><p><span style="font-family: 'Arial'"><span style="font-size: 10px">I would be interested to see your results.</span></span></p></blockquote><p></p>
[QUOTE="Topshot, post: 315591, member: 13285"] [FONT=Arial][SIZE=2]lisagrantb[/SIZE][/FONT] [FONT=Arial][SIZE=2][/SIZE][/FONT] [FONT=Arial][SIZE=2]I worked for a long time in Survey and have experience in setting up plate bubbles. The accuracy of a plate level is determined by the radius of its curved surface and the size of its bubble.[/SIZE][/FONT] [FONT=Arial][SIZE=2][/SIZE][/FONT] [FONT=Arial][SIZE=2]The bubble on an anti-cant level is not a particularly accurate device. It is short and dumpy with a small radius curved surface. It is certainly not as accurate as the fine machinist level that you used to set up your scope.[/SIZE][/FONT] [FONT=Arial][SIZE=2][/SIZE][/FONT] [FONT=Arial][SIZE=2]As a test, set up and level your rifle on uneven ground, using your anti-cant level and then check it against your machinist level. Do this three or four times and I am sure you will get different results each time you try it.[/SIZE][/FONT] [FONT=Arial][SIZE=2][/SIZE][/FONT] [FONT=Arial][SIZE=2] [/SIZE][/FONT][FONT=Arial][SIZE=2]As another test. Move the anti-cant level bubble 1 or 2mm from its central position and then check out how much it puts your rifle off level using your machinist level. This will give you an idea of the sort of accuracy that you can expect from your anti-cant level when being used while shooting out in the field under real life conditions.[/SIZE][/FONT] [FONT=Arial][SIZE=2]You should be able to measure the angular error from the deflection of the machinist level.[/SIZE][/FONT] [FONT=Arial][SIZE=2]I would be interested to see your results.[/SIZE][/FONT] [FONT=Arial][SIZE=2][/SIZE][/FONT] [/QUOTE]
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Long Range Hunting & Shooting
Can't find my spin drift or coriolis.
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