It's called parallax...the lens is adjusted so that the point of aim will meet the point of impact at a predetermined distance.
You can illustrate this by drawing a very shallow "X." Looking at it from left to right, let the top arm of the "X" be the scope's line of sight/point of aim and the bottom arm of the "X" be the line of travel of the bullet. (Actually, the bullet will travel on a slightly downwards curving arc as it looses velocity, but let's keep it simple for now.)
The intersection is where the point of aim and point of impact are set to meet. If your target is farther than your preset distance the bullet will impact lower than the point of aim.
2007-12-08 01:59:37
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answer #1
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answered by Bill 5
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A sniper's scope is just like any other sighting system. It is zeroed to a certain distance. On a no wind, standard atmospheric day, the bullet will impact the target at the crosshairs (along the sightline) at that distance.
Now here's some things that will blow your mind.
1. There are actually two distances where the bullet will impact the crosshairs, one close and one far.
2. Bullets do not travel in straight lines. They travel in arcs. Since the barrel is below the sight, it must climb above the sightline and then later descend back to the sightline.
3. Let's not even discuss trajectory shift and trajectory jump.
2007-12-08 05:41:08
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answer #2
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answered by Smoker06 6
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The accuracy of sniper has to do with his ability to judge distance(range) and deflection (wind)
The instant the bullet leaves the barrel it starts to drop (trajectory)...... the goal is to get the bullet to drop on the target
If you were to look at the target through the barrel..... you would NEVER hit the target......the barrel must actually be pointed above the target and the bullet falls into the Target
the telescope sight is a straight line ...... the range adjustment controls where along that straight line the bullet will cross as it falls........if the sniper estimates the range.....and adjust for windage / visual distortions properly (lasers make that easier)...... the target is hit.
2007-12-08 08:01:30
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answer #3
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answered by Kojak 7
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What exactly do you mean?
When a sniper aims a weapon, the sights are adjusted for the distance to be covered. This alters the angle that the telescopic lens makes with the end of the barrel.
Farther away creates a shallower angle than close up.
Movies tend to simplify things but there is a bit of adjustment to make first.
2007-12-08 05:30:29
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answer #4
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answered by Rob K 6
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actuallz the real life sniper sights are slightly more difficult than the hunting cross you see every day on the TV.
the lateral distance of the telescope and barrel axis becomes marginal at the ranges snipers usually shoot at, largely overpowered by the corrections of the bullet drop, wind drift and other values, including target movement. these may create even several METERS correction in the aiming, while the distance you are interested in is measured in at the best 5 inches. thus this is not the key problem of the sniper.
even the simpliest sniper scopes like that of the SVD, the scope includes basic distance measuring equipment, bullet drop marks and winddrift+target movement correcting drawings.
the sniping is not about putting a cross at the target head, it is about mathematics, too.
2007-12-08 06:23:50
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answer #5
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answered by Anonymous
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Are you talking about the two inch difference in height of barrel vs. scope height? Well at 2 foot out it would'nt be accurate but it is adjusted for at certain distances. Average gun is 100 yards but snipers would be "scoped in" at greater distances. Anything outside or inside would be fine tuned for each shot.
2007-12-08 05:42:34
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answer #6
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answered by popeyethesadist 5
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its called a scope not a lens BIG difference. And unless the objective side of the scope is adjustable depending on the range it will be fuzzy if the object is at extreme sides of viewing distance
2007-12-08 05:41:15
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answer #7
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answered by Anonymous
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Magic
2007-12-08 05:28:42
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answer #8
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answered by skittlesjunkie93 3
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the word you need to look up is
parallax.
2007-12-09 13:39:08
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answer #9
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answered by sirbobby98121 7
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because , it is not just hitting the point , can be centimeteric failure , it cant hit the exact point from far away
2007-12-08 05:30:44
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answer #10
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answered by wise guy 3
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