Thread: serious moa question

I tend to shoot better groups a 200 than 100 but in my case i think it is my eyes. After a few shots i seem to get tired eyes and on high mag at 100 find either the target or the crosshair is sharp but not both. I have tried playing around with the parralax and diaopter and it makes no difference. But i don't seem to have this problem at 200 or further or at least not to the point it is distracting.

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