AR Sponsor
Posted: 5/18/2007 8:39:34 PM EDT
|
The MP-8 reticle on my IOR 2-12x came back from IOR in Littleton with the reticle out of adjustment. Would sure appreciate anyone cluing me in with how to re-center it. I remounted the scope on my AR-10 after it came back from evaluation. I use a Bushnell Scope Collimator with a grid scale to align the reticles in my scopes. I also test the movements of my scopes. After mounting the 2-12x, getting it all squared up, I found the scope only had two out of 10 grids of UP elevation and two grids of Left Windage. The Down Elevation and Right windage have about 12 grids of movement. each grid equals 4 inches. Tested a Leupold mk4 on the same A-4 rail and it has tons of elevation and windage. So, this scope, fresh back from the USA Importer is messed up. IOR doesn't give you much about using their scopes. All they discuss in the 4 pgs of text they send is how to get a Zero Index by loosening the 2 allen-head screws. Anyone who knows how to re-center this reticle so it has equal movements on either axis of movement, I would sure appreciate your comments how I can fix this thing. thanks hogan |
|
Here is a recap of the movements the scope can make on the collimator grid: The reticle moves above the horizontal mid-point line in the Bushnell Collimator mid-way on the MP-8 reticle hashmarks. That is a total of about 48 MOA of Downward movement since the 10 sq grid is equal to 40" of movement. The reticle moves only to grid 4 below the mid-point line. This is 16moa or inches of Upward movement. Each turret has a total of 4.2 complete turns top to bottom, or side to side. With the Verticle Turret "centered" at 2 turns, the reticle can move Left only to the 3rd grid or 12 moa/inches. It moves to the right for the whole grid plus about the whole width of the horiz hashmarks on the MP-8 reticle. About 52 inches. Loosening the 2 turret allen-head screws and moving the turret backward does nothing to gain more Up or Down movement. I have a screwdriver that fits the tiny slotted screw in the middle of each turret, but what can of worms will that open up? |
|
I was unaware you coud mechanically move a reticle, only set the turets to zero. This would have zero effect on your issue of scope/rifle zero. The scope must be zeroed to your rifle and you lose some adjustment in the process. I have been around scopes of all types for many years and have never heard of making the adjustment you are suggesting via a simple screw adjustment accessable from the outside of the unit. I dont see any reason you would even be making any adjustments to your optic if you are aeroed and have set your turrets back to zero. What is it you need more than 12 MOA of windage for? Or perhaps you do NOT have the scope zeroed on your rifle and you just need to zero the scope and set the turrets back to zero once you have zeroed the optic. You do not make this clear and noone is answering you because you are not making much sense about what the problem is and what you want to accomplish. If the later is the case just zero your rifle and ignore what the markings are and reset the turrets to zero. Simple. Can you explain better what the issue is? You dont need a mechanically zeroed scope and turret set up to sight in the scope. Just shoot it as is. |
|
Give me a call and I will see if I can help you over the phone (916) 670-1103. Mike @ CSGW www.csgunworks.com [email protected] Here’s some testimonials about CS GunWorks What do YOU have to say about CS GunWorks What Do You Think Of Cs Gunworks? FEEDBACK about CSGUNWORKS.com |
|
Dev, The problem with the scope is the reticle is not centered in the tube I put a Leupold 4-14 mark4 M-1 w/TMR reticle on the collimator, it has plenty of movement: The Leupy has 44moa/inches of Down movment, About 64 inches/moa UP movement. about 60 inches to the Right, about 46 inches to the Left. The Leupy is factory new, just like the IOR. See how the IOR is all skewed up? IOR only moves 12" Left and 16" up. At $1400 fkng scope is supposed to track and enable you to dial windage and elevation changes. That is where lots of the $$$ is soupposed to go. I know how to zero a scope. I know how to zero a reticle so it has full range of movement. These are two different things. This scope will "zero anywhere from 1-400 yds; but it will not dial beyond that. On a precision optic made for shooting past 300 yds, about 35 moa of elevation is standard. Most scopes will enable 45 moa of come-up. If I knew that the wind would always be from left-to-right, I would be in good shape, but this IOR scope only adjusts 12 inches left while it will adjust almost 55 inches for right to left wind. Get the picture? The reticle should be centered, this one needs to have equal distance of movement for windage and would be great if it would have 70 inches of elevation up and 4 inches down. The problem is, when the reticle is askew in the tube, it degrades the image and puts stress on the turrets. You don't want stress loading your turrets. IOR employs no technicians or optical experts in its USA operation. They have only 2 employees. One doesn't seem to do anything but answer the phone and try to discourage customers who have warranty issues. The fact that I sent IOR a scope that had its reticle pretty well centered and got it back so far out of adjustment, proves they have no knowledge of how to service a scope; or they damaged mine intentionally. Adjusting an IOR scope ought to be a lot easier than it is. Leupold's are a piece of cake. If you don't own a Scope Collimator you simply have no clue what your scope is doing. How many guys own the High $$ glass, but don't own a collimator? I'd say most. This matter has nothing to do with zeroing a scope to point of impact on a target with live ammunition, and everything with being able to use that zero for longrange shooting. A $1400 2-12x scope with parallax side-focus and a range estimating reticle is not a shortrange scope. |
AR Sponsor