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All Springer/NP/PCP Air Gun Discussion General > Optics, Range estimation & related subjects

Cant errors

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Howler:
Late to the game! but good info! I didn't read every post, so this is just a problem that I've found associated
to scope can't & that is Scope mounts!  they can have a adverse effect by tilting the scope to one side. FWIW, the best rings I have used to solve the problem are BKL, I'm sure there are many others, but that's what I use. Also, most 1 piece 11mm mounts are pretty much anti tilt & grip like crazy. I'm talking 11mm! But still, I have seen it happen with pics to. I to use a scope level beyond 35 yrds. Most airguns just won't let you mount the scope low enough to the bore.

Setting your rifle up to eliminate the problem sure makes ya not want to touch it! its a good idea to test your scope out well & make sure your happy with it before going thru the paces.

Sean:
Hi all, the pictures are not showing up for me. Am I doing something wrong for me not to be able to see them? Any help would be greatly appreciated. Thank you

Motorhead:

--- Quote from: Sean on June 13, 2023, 04:48:03 PM ---Hi all, the pictures are not showing up for me. Am I doing something wrong for me not to be able to see them? Any help would be greatly appreciated. Thank you

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Page one  ... no issue can see the chart/s

Sean:
That's a no show on my end. I get a empty box with an icon in top left corner. Nothing happens when I hit on it either. All I have to access the internet is a phone. Don't know if that makes a difference or not. I am not that good at using it either!! Thank you for the reply.

nervoustrigger:
Quoting Scott's original post, with the image replaced by a copy uploaded to the forum...


--- Quote from: Scotchmo on July 31, 2014, 12:11:02 AM ---Cant errors can be tricky as we try to compensate for them but end up introducing other errors.

I posted this information on another forum after seeing some questions and confusion about cant errors. I thought about putting this in the Optics child board, but scope cant is only one type of cant. Scope cant is not the same as gun cant but the symptoms can be mistaken for each other. I addressed them both in order to show the difference. I had a request from another GTA member to post on this forum. I hope readers here find it useful.

This is some esoteric cant information that I have been thinking about for the past couple of days. There are a number of different cant combinations. How far left or how far right the misses are will depend on the degree of cant, so that could be another subject. The goal is no cant. Hopefully this diagram can help diagnose and solve some of the cant induced errors that I and other readers may experience from time to time. Because of the unique conditions that FT shooters must deal with, we are the ones most likely to be interested in it. Early on in my attempts to shoot airguns with precision, I was convinced that the pellets must be spiraling. Spiraling is certainly a possibility, but from what I know now, it was likely cant errors. In all instances, the gun in the diagrams would be zeroed at the apex of the trajectory.

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