Target Talk

3-P Shooters: I would Like to Know...

Posted by STL William on August 27, 2001 at 22:30:33:
I would like to know how many if any of you move your rear sight forward or backward in between different positions. I haven't before but at the advice of a friend am considering varying it 1 inch between prone and stand. I would also appreciate any advice on the subject beyond finding out how many people do it.
Thanks in advance.
William

Posted by STL William on August 27, 2001 at 22:30:33:
I would like to know how many if any of you move your rear sight forward or backward in between different positions. I haven't before but at the advice of a friend am considering varying it 1 inch between prone and stand. I would also appreciate any advice on the subject beyond finding out how many people do it.
Thanks in advance.
William

Posted by Jim on August 27, 2001 at 23:33:40:
It has been many years since my 3 position days but as I recall, it was not a common thing to move your rear sight between positions. Instead the more common thing was to invest in an adjustable Iris for the rear sight itself. I actual preferred the additional eye relief from Prone to Standing. Kneeling just sort of fell in the middle.
The advantage of an adjustable butt is self evident in this instance. Instead of moving the rear sight and impacting your zero, just shorten the stock. I had almost a full inch difference from prone to offhand.
Good luck..

Posted by Larry Sawyer on August 28, 2001 at 00:55:58:
I have the rear sight in one place for prone, move it back for standing perhaps an inch or more (it's not in front of me right now, so I'm not sure of the exact amount), then forward some for kneeling-- but not all the way to the prone location. So I have three different positions for the rear sight. I find that it's necessary to maintain reasonably proper eye relief.
The change in p.o.i. is minimal, and besides, other factors like sling pressure or lack thereof will change the p.o.i. more-- I think. So it's a non-issue.
The goal is to hit the x ring. I say do whatever's necessary to maintain decent form, make the rifle feel right, and hit the center.

Posted by Michelle on August 28, 2001 at 17:43:14:
the rear sight should always be set up in a certain way. to do this, ideally, you will need someone to help you but you can do it on your own with a little difficulty.
the set up of the rear sight, (hmm how to word this) the distance between the rear sight and the fore sight should be the same a the distance between the foresight tube and the foresight element (if this makes sense, if not let me know and I’ll try and word it better) so to do this set the rear sight as far forward as it goes and get someone to move it back until you feel the distances are the same.
as for the Iris (as mentioned in others reply's) to set this up you need to open it as far as it goes (or up to about 1.5) then close it down until you get cobwebs in your sight the open it until it come just clear.
Hope this helps you if not e-mail me
michelle

Posted by Michael Ray on August 28, 2001 at 22:28:43:
I feel you should move it between positions. My prone and kneeling are about as far forward as I can get it (note I wear glasses) and standing is maybe 1.5" back from that. Essentially you are keeping the eye relief constant.

Posted by michelle on August 29, 2001 at 05:13:36:
It’s not about keeping the eye relief constant it is about keeping it set up correctly as a explained in my other post
michelle

Posted by Ken Johnson on August 29, 2001 at 23:01:41:
OK, the rear sight, huh?
As for the change of zero, so what? If you're more worried about clicking to get back into the ten ring than sighting quality, then you should have not asked or answered this post. Sorry for being so blunt.
As some mentioned, eye relief is important. What's most important, and is a function of eye relief, is sight picture quality. This is the purpose for moving the sights (the major purpose). Another purpose is to maintain ease of sight alignment. If any one has a question about sight alignment, I'll answer that later.
The sights should be moved in each position to accommodate for clarity. The position of the buttplate should not be changed to "fix" eye distance to the sight. Butt length should not be changed to "fix" eye distance to the sight. There's a reason why the sights are not welded to the action. It's so you can move them!!
It was a great question and elicited a lot of responses. If you want the details, I can give them to you, but to answer simply, move'm.
Ken J

Posted by STL William on August 30, 2001 at 09:18:59:
This is all quite fascinating to me, as I have never experienced or noticed problems in focus associated with the rear sight except for the diameter of the aperture. It could be that my eyes are still young or that I have never paid that much attention to it while shooting.
I'd appreciate some more info Ken if you wouldn't mind. If you think it's too boring for the board then e-mail me with the details. Thanks.
William

Posted by coachesRus on August 30, 2001 at 17:27:52:
: : This is all quite fascinating to me, as I have never experienced or noticed problems in focus associated with the rear sight except for the diameter of the aperture. It could be that my eyes are still young or that I have never paid that much attention to it while shooting.
: I'd appreciate some more info Ken if you wouldn't mind. If you think it's too boring for the board then e-mail me with the details. Thanks.
: William

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