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Old 10th May 2010, 12:42 PM
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Pepone Pepone is offline
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Default A question about S&B scope

I have recently purchased a s&b FT scope, and I have a doubt. I have marked the side wheel , and I was surprised that the marks of the distances does not follow an exponential or regular distribution.
I have to explain, that i have marked the side wheel from 50 to 7 meters, in the long distances for example i have more than 5 mm distance between 50 and 48 meters, and the same till 40 meters, but between 40 and 28, the marks are closer. Only between 40 and 28 meters, the separations are smaller. From 28 meters to 7 meters, the marks are increasingly separated.
This is normal?
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Old 10th May 2010, 12:45 PM
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I do not own a S&B scope but I have read several reviews that this very normal on these scopes.

I stand to be corrected though............
HW97 V-Glided with LP Eliminator Stock Big Nikko 10-50x60
TX200HC V-Mached with LP Eliminator Stock Tasco Custom Shop 8-40x56
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Old 10th May 2010, 02:10 PM
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Hi my S&B is the same as yours by the sound.
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Old 10th May 2010, 07:14 PM
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I've looked at the sidewheel markings of a number of FT scopes (Leup, BSA, Nikko, Walther etc) and haven't yet found a single one that follows a simple mathematical relationship. I guess it's similar to camera lenses ...


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Old 10th May 2010, 10:00 PM
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The march is the opposite as standard... the markings do close up as they go further out, but the gaps seem to slow down they're rate of tightening the further out you go. When I was marking it up, i was quite apprehensive, as the gaps between 8-10 were smaller than my custom shop, yet the rate flattened out, where as the custom shop gets tighter and tighter.

I guess it depends on the mechanisms. On the xray of the custom shop, the parallax seems to work on a worm track that runs around the inside of the scope tube like a spiral. I say appears because i'm just guessing. I think the leups work on a rack/pinion.
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