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home Forums – The GUN Forum Figuring out the shortest possible zero range

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    I’ve been a long time lurker of this sub and finally decided to go ahead and buy a Tikka T3x Tac a1 in 6.5CM. While adding the required accessories I stumbled upon a quite situational problem I haven’t found a means to addressing on here yet. I spend most of my time at a 100 meter range due to the unavailability of larger civilian gun ranges within 200km of where I live. Occasionally there are competitions on military ranges with distances upwards of 1000 meter which I plan on attending once I have enough practice with the rifle at 100m.
    Using the ballistic calculator linked in the FAQ, I determined that I would require about 10mrad of elevation to reach out to 1000 meters. The scope I plan on buying (meopta optika 6 5-30×56 ffp) has a total adjustment range of 32mrad. Unless I’m missing something, that means that that I wouldn’t strictly need any built-in elevation?
    Would the extra headroom provided by built-in elevation provide any advantages for this specific situation and if so, what is the maximum amount before I am no longer able to zero the rifle at 100m? And what I care more about, how do you calculate this?

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