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Scope height over bore (question for long range shooter)


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Old 06-03-2013, 01:45 PM   #11
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The bullet doesn't fly different. There is two basic things to think about, first the higher the scope is, the more you will find bullets that stray left and right. The higher it is the harder it is to hold perfectly over the barrel. When the scope is low on the barrel it will pick up more heat when you have to shoot many shots in a short time frame.
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Old 06-07-2013, 11:00 AM   #12
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C3 has already nailed it. You can put extra high mounts on any gun and the rifle will appear to shoot flatter. But you are giving up durability with the extra high mounts. Yes, you can sight the gun in at 300 yards. Yes, it will shoot flat. But every time you transport the gun in a vehicle you will have to sight in the scope again. Just shooting the gun will knock the scope off target.

Use the lowest mount you can and still operate the bolt. The mount will be durable and dependable. You can shoot just as far but you will have to hold over the target.
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Old 06-07-2013, 12:43 PM   #13
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To visualisewhat is going on, draw an arc across a piece of paper, then lay a straight edge parralel to the arc across it.

The arc represents the bullets path, the straight edge is the scope line of site. As you change the hieght of the straight edge the contact points along the arc change. Tilting the straight edge will also move the contact points.

By changing scope hieght and angle on the bore you are altering how the line of site and bullet arch intesect. Where the line of site and bullet arch intersect equals 0 hold over, past that point adds hold over and before that point adds hold under.

Not sure if that clears it up or foggs it more but that is what your ballistics program is showing you.
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Old 06-07-2013, 12:56 PM   #14
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It can be used to your advantage if you are shooting targets outsided of your scopes reticle click range. By raising the scope and tilting it forward, you increase the bullet arc extending the bullets range as well as where the LOS crosses down range.

Its the same principle as the old flip up long ranging tang sites. Cept with a high powered rifle a little goes a long way, shimming the rear of a scope base by the thickness of a bussiness card can dramatically alter this relation ship.
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Old 06-20-2013, 04:27 PM   #15
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I think triggerjob is the only one who actually tried to answer the question instead of acting like Nathan was stupid for asking, answering different (unasked) questions, or generally discussing other things besides the ACTUAL question.

Thank you, triggerjob!
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