Easy Centering of a Scope's Adjustment Dials with a Mirror - Graybeard Outdoors
Reply
 
LinkBack Thread Tools
post #1 of 24 (permalink) Old 08-30-2008, 11:29 AM Thread Starter
Super Moderator
 
quickdtoo's Avatar
 
Join Date: May 2004
Location: SW Washington State
Posts: 48,603
Gun Cabinet
Default Easy Centering of a Scope's Adjustment Dials with a Mirror

From the Leupold Answer Guide.

Tim


Centering of a scope's adjustment dials[/color]

The elevation and windage adjustments of a scope are easily centered. Place a small mirror against the objective end of the scope. That would be the end farthest from your eye as you look through the scope. Make certain that the mirror is large enough to cover the entire objective. It must also be flat against the objective. With the scope's power selector ring set at the lowest magnification, look through the eyepiece as you would while aiming at a target. If the scope's windage and elevation adjustments are off center, you will see two images of the reticle (cross-hair). To reach the center of the adjustment range, simply turn the elevation and windage dials until you see only one image of the reticle. [/color]


http://www2.leupold.com/resources/My...2-cca921379b25

"Always do right, this will gratify some and astonish the rest" - Mark Twain
quickdtoo is offline  
Sponsored Links
Advertisement
 
post #2 of 24 (permalink) Old 08-30-2008, 03:50 PM
Senior Member
 
Join Date: Aug 2006
Location: Nothern Kentucky
Posts: 1,576
Default Re: Easy Centering of a Scope's Adjustment Dials with a Mirror

That's pretty nifty! I'm sure that I won't remember it though.
kyelkhunter3006 is offline  
post #3 of 24 (permalink) Old 08-30-2008, 04:36 PM
Administrator
 
Graybeard's Avatar
 
Join Date: Nov 2002
Location: The Heart of Dixie-Bama
Posts: 23,938
Gun Cabinet
Default Re: Easy Centering of a Scope's Adjustment Dials with a Mirror

So what's wrong with counting the clicks or just checking the manufacturer's specs for that info and turning it all the way one direction and clicking back half that number? I can count while on the range but can't say I've ever had a mirror with me out there.



Bill aka the Graybeard


I am not a lawyer and do not give legal advice.

Jesus is the way, the truth, and the life anyone who believes in Him will have everlasting life!
Graybeard is offline  
Sponsored Links
Advertisement
 
post #4 of 24 (permalink) Old 08-30-2008, 06:26 PM
Senior Member
 
Join Date: Jan 2003
Location: Frisco, NC
Posts: 3,259
Default Re: Easy Centering of a Scope's Adjustment Dials with a Mirror

How does light get into the scope with the mirror over the objective end? Sounds like a great idea.
charles p is offline  
post #5 of 24 (permalink) Old 08-30-2008, 06:54 PM
Senior Member
 
Join Date: Aug 2006
Location: Nothern Kentucky
Posts: 1,576
Default Re: Easy Centering of a Scope's Adjustment Dials with a Mirror

It must reflect off of the mirror into the tube. The objective is flat against the glass, but not against the reflective surface of the mirror.
kyelkhunter3006 is offline  
post #6 of 24 (permalink) Old 08-30-2008, 09:16 PM
Senior Member
 
Join Date: Jul 2005
Location: CICERO, ILLINOIS
Posts: 3,025
Default Re: Easy Centering of a Scope's Adjustment Dials with a Mirror

Stupid question here but what is the purpose of centering the scope? It doesn't have anything to do with sighting it in on the gun, or am I mistaken. Is it a good idea to do it before you transfer the scope to another gun? Is this just in case the knobs fall off? I just wondered.

GBO SENIOR MEMBER "IF THAT BALL COMES IN MY YARD I'M KEEPING IT!"

NRA LIFE MEMBER

UNION STEWARD CARPENTERS LOCAL 1027

IF GOD DIDN'T WANT US TO EAT ANIMALS, WHY DID HE MAKE THEM OUT OF MEAT?
GRIMJIM is offline  
post #7 of 24 (permalink) Old 08-30-2008, 09:52 PM Thread Starter
Super Moderator
 
quickdtoo's Avatar
 
Join Date: May 2004
Location: SW Washington State
Posts: 48,603
Gun Cabinet
Default Re: Easy Centering of a Scope's Adjustment Dials with a Mirror

When mounting a scope, it's desirable to have the reticle in the center of the focal plain, that's where the best resolution and clarity happens, toward the edges isn't as clear, if you center the adjustments, you're centering the reticle within their adjustment range, if you have to adjust it a lot to bore sight it, you know right away that something is out of alignment, it could be the base(s), mounting holes out of alignment, bad rings or the bore is off center. If it's off a lot, Burris Signature rings with offset inserts can take care of it . Knowing you used a lot of windage or elevation adjustment just to get bore sighted will also tell you may not have much left to make adjustments zeroing at the range, something that would be nice to know before you're sitting in front of your target scratching your head when your turret adjustment runs out of travel!!

Count clicks if you want to, you can also use a V-block, the mirror method is so easy tho, best done before you mount the scope, it's easier to get the light angle correct. I mount scopes at home on my workbench, I like to shoot at the range and not play with my scope counting clicks!! ;D

Tim

"Always do right, this will gratify some and astonish the rest" - Mark Twain
quickdtoo is offline  
post #8 of 24 (permalink) Old 09-04-2008, 11:19 AM
Member
 
Join Date: Sep 2006
Posts: 33
Default Re: Easy Centering of a Scope's Adjustment Dials with a Mirror

If you have ever counted 250 clicks without any interference, then counted clicks to 125, again, without ANY disruptions, you are more fortunate than I. This works and is by far easier. Good information!
xb40 is offline  
post #9 of 24 (permalink) Old 09-04-2008, 04:59 PM
Senior Member
 
Join Date: Sep 2006
Location: Enid Oklahoma
Posts: 1,351
Default Re: Easy Centering of a Scope's Adjustment Dials with a Mirror

I keep a small mirror near my bench for this very reason.
I have done it with the mirror on the bathroom wall though.
As long as you have it good and bright in the room you can see the crosshairs.
That's all you need.

Works better for me than the V block. Counting clicks is probably more accurate though.
barr25-06 is offline  
post #10 of 24 (permalink) Old 09-17-2008, 08:26 PM
Senior Member
 
Join Date: Dec 2003
Location: Central IL
Posts: 2,814
Default Re: Easy Centering of a Scope's Adjustment Dials with a Mirror

Scope Repaired. Thanks quickdtoo!!

The scope was an older 4x32 (Universal Brand) that I had inherited back in the 80's. I had used it on two different rifles and would put it on, or take it off a third depending on my mood.
No problems till I let my Son try it on his model 60 and he and my son-in-law took it out to sight it in. Elevation recticle is broke or stuck they claimed, wont print any higher than 6" below p.o.a they said. I found what they were saying was true and I tryed turning that elevation dial up & down while gently tapping the turrent but it did no good.

Three and a half months later I see this post and decide to check the centering as said by the posted procedure. Those boys must have really done some cranking on that scope because it was way off. I had to crank that elevation dial down several turns before it caught hold and I was able to get it centered on the vertical. The Hoizontal was not too bad and I got both sets of crosshairs to line up perfectly.
That was last night and I put the scope back on a rimfire today to check it out. It hit paper right at the start and I was able to get it zeroed quickly 8)

I had (Centered) new scopes in the past but not by using the posted procedure which was fast and easy. What I would do is to make a couple of "U" shaped holes in a shoe box then place the scope in the holes and turn it round & round & round while looking through it and using the dials to correct that lopsided wagon wheel. That would work but it was quite tedious!

Again, Thanks For That Procedure quickdtoo! It was so fast and easy that it was worth trying and just happened to work. I should probably send you at least $35 but I am a little short right now


glanceblamm is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Graybeard Outdoors forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome