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Cant / Scope Alignment 'Calculator'

RoninISC

Private
Full Member
Minuteman
Dec 5, 2011
71
64
There are many ballistic calcs out there, including the comprehensive JBM. While this is nowhere near that level, I've never seen one that does reverse calculation of cant or scope alignment.

https://docs.google.com/spreadsheets/d/1EgU77rEBOUg5MEaE-yIkm7gIu3yTp_hUUSN9v0Zxryg/edit?usp=sharing

Here is my spreadsheet which calculates reticle offset, optical axis alignment to bore, and cant, given shot placement (or bore-sighting) at two distances.
See Lowlights page here for an overview. https://www.snipershide.com/training-lesson-mechanics-rifle-cant/
The values from that page are used as an example. I venture to say most peoples real world values will be greater.

This would be useful for those really wanting to test or squeeze the last drop of accuracy out of their rigs, check to see if their level is really level, are curious what their actual cant is (given no other misalignment), people who may have older or poor equipment (not likely on snipers hide), or tweakers who just enjoy geeking out doing scenarios.

I'm using an older excel. Please report any errors and I'll correct them. The angle extrapolation has yet to be done.
Most should be self explanatory, still I've spelled everything out to avoid any possible confusion.
 
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