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Question about parallax

Printed From: OpticsTalk by SWFA, Inc.
Category: Scopes
Forum Name: Rifle Scopes
Forum Description: Centerfire long gun scopes
URL: http://www.opticstalk.com/forum_posts.asp?TID=41908
Printed Date: November/24/2017 at 12:39


Topic: Question about parallax
Posted By: tpcollins
Subject: Question about parallax
Date Posted: July/27/2015 at 10:48
I have a reasonable understanding of parallax but I would like to understand it better. For example, which would show the most movement (or error) - a scope with a 75 yard parallax targeting a 30 yard target, or a scope with a 30 yard parallax targeting a 75 yard target? Thanks.



Replies:
Posted By: billyburl2
Date Posted: July/27/2015 at 12:25
The most error is going to be shown with the scope set at 75 years and the target at 30. As the target gets further away, other things become the limiting factors.

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If it is tourist season, why can't we shoot them?


Posted By: Gerry Atric
Date Posted: July/27/2015 at 12:28
If you want the full maths/physics:

http://rimfirebenchrest.com/articles/parallax.html

(You may have to copy/paste that link to your browser)


Gerry Atric


Posted By: billyburl2
Date Posted: July/29/2015 at 02:44
That is a very informative article, Gerry.

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If it is tourist season, why can't we shoot them?


Posted By: Gerry Atric
Date Posted: July/29/2015 at 21:53
I got a headache the first time I read it, but then again for me it´s a translation involved. 

If one dissect only the passus of interest it´s easier.

I wish I´d read that info before I adjusted my first scope for parallax, nervously screwing the front-lens in and out, "I got it right but I didn´t know exactly why."

Then again - That´s the story of my life and a nice epitaph Wink


Gerry Atric



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