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Box Test Result of IOR 3X18X42 with MP-8 Reticule

 
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  #1  
Old 10-30-2007, 01:19 AM
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Box Test Result of IOR 3X18X42 with MP-8 Reticule

Scope quality can be measured by how good it tracks. One way to find out is to do a box test. Here's the result of the IOR's box test at 110 yards. I'm using the 155 grain Lapua Scenar for my 308 for this box test. I initially fired three shot group on another target to see if my rifle zero is still on. I'm using a new batch of ammo, that I reloaded, using Winchester brass. I normally use Federal brass but I want to find out if Winchester will work with my rifle since I must have a truckload of them. The Winchester shoot half an inch low when compared with Federal but group just as well, so I left it alone.

Fired the first shot at the center of the target and noted that the bullet impacted just as predicted, half inch low. I then dialed the elevation knob 3MOA up and windage 3MOA right and fired shot no.2. I then turned the elevation turret 6MOA down for shot no.3. For my 4th shot I totally got confused and dialed a total of 9MOA instead of 6. As you can see, shot no.4 ended up at the edge at the target. I went ahead and dialed the elevation turret 6MOA up, carefull this time not to make mistake, and fired shot no. 5. On shot no.6, I just reset both my elevation and windage dial back to my original zero and fired. And here the result!!!

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  #2  
Old 10-30-2007, 02:07 AM
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Nice scope, nice rifle, nice shooting! Well done!!!
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  #3  
Old 10-30-2007, 04:14 AM
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Box test

I have done the same test many times on my BR scopes. There are a few things I have learned:
1. Your scope must be dednutz level, not canted even slightly.
2.Your rest must be level.
3.The target must be levelled.

With 1/4 min clicks, I hit the upper left corner of a 1" square at 100 yds, then move four clicks right, four down, four left and finally four up so that the first and fifth shots should touch.
If your rifle is extremely accurate and the scope performs properly, you should be able to hit each corner.
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  #4  
Old 10-30-2007, 05:20 AM
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Is this the SH version with the FFP reticle or is it a SFP reticle??
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  #5  
Old 10-30-2007, 09:43 PM
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This is the Illuminated MP-8 reticle SFP.



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  #6  
Old 10-30-2007, 11:36 PM
daveosok
 
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"Scope quality can be measured by how good it tracks." Yes but not by using a rifle that can't shoot .0000 (impossible any way).

Couldn't you just click the scope and note the position of the scopes cross hairs?

If you're going to do a test you can't use a rifle to determine if a scope tracks correctly to many variables in the rifle to have a "true" scientific test performed. You would have to use the scope independently of the rifle for a test of the tracking abilities. If your saying that the scope tracked well when used with recoil and shock then I'll buy that.

When tracking a scope and firing the weapon it shouldn't be used to determine if the scope actually tracks correctly.

The point of aim and point of impact must both be equally accurate. If your gun shoots .25 moa @ 100 yards then you would have an error of .125 moa while your scope has much less of an error probably in the +/-.005 thou.

As one member pointed out everything must be exact, the scope is level, what supports the weapon is level and the target is level.

IOR scopes claim a true .25 moa or (.5 moa) which is not .25 inches but .26175 (.5235) respectivly. At 110 yards one click actually equals .2885 (.577) and one moa is 1.154 as compared to the 1.047 true moa @ 100 yards. Your target is the standard 1 inch squares you will not be "dead nutzs" on anything if your tests do not relate to each other in accuracy.

I understand the test you're doing here but I don't want anyone getting the wrong idea about high quality scopes not tracking as mathematically they should.

Just my two cents.
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  #7  
Old 10-31-2007, 01:19 AM
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Well, except the fact the last bullet landing right on top of the first bullet is a pretty darn good indication of scope and rifle repeatability. ;)

But I agree there are more accurate ways to examine scopes by themselves. I've come to like doing a bunch of clicking in front of a collimator as you can learn things about a scope doing that you're never going to notice just shooting it. Though in the end you must also see if it can do it with the recoil.
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