To shoot successfully at longer ranges you need more than just an accurate rifle and ammo. You need data. Instruments that give information on target distance and environmental conditions work with ballistic software to provide accurate firing solutions. So, rangefinders, wind meters and ballistic computers have become vital components in the long-range shooter’s tool kit.
以正确的方式学习使用此设备是最被低估（且不发达）的远程射击技巧之一。这些是使您充分利用电子产品的一些技巧和窍门。
测距仪技能
One of the first things to do with any new rangefinder is to figure out where the beam is actually going. Rarely does the aiming point in the viewfinder perfectly align with where the beam strikes. This becomes critical when trying to get distances on challenging targets. Common scenarios include targets that are tucked in timber or other vegetation, and targets that are on flats that don’t have well-defined backstops. Unless you know exactly where your beam is striking it is easy to end up with an incorrect reading.
要“零”测距仪，请选择一个面向您的平坦中型目标，并且具有明确的边缘，并且还具有易于范围的后退距离。停车标志，身后有树木，或者是房屋的烟囱，背后有另一个建筑物或类似建筑物。
laze沿其边缘和边缘外面重复。在某个时候，您会看到瞄准点与您所获得的距离不符。这将指示单元中的偏移量存在于何处。
If you find that your beam is actually at 12 o’clock in relation to the aiming point, for instance, you’ll know that you should use a 12 o’clock hold on distant and challenging targets.
另一个好的技巧是懒散目标的底部以获得准确的距离。当在高架的T柱上拍摄钢目标时，通常可以通过击中柱子进入地面来更容易获得准确的读数。
游戏动物往往不像其他物体那样反射，因此，如果您很难在动物上距离距离，请放松附近的绿色灌木丛或树。
Wind Meter Skills
与提供精确数据的测距仪（与目标的距离）不同，风能仪提供了第一个，最好的猜测。在射击位置获得良好的风读是朝着良好的风通话迈出的第一步。
To get the best read from a wind meter, make sure to point the back of the unit directly into the wind. I keep a bit of surveyor’s tape on my tripod that I use as a wind indicator to determine the correct vector, but there’s nothing wrong with licking your finger and sticking it in the air as well. Tossing a bit of dirt or grass in the air can accomplish the same thing.
在阅读时，将仪表高高地握在头顶上方。如果您被藏在地形上，请尽可能到达附近的一个裸露高点。这将为您提供更好的阅读。
Wind flows across the ground the way water moves down a river. Friction at ground level slows wind down. Higher up, the wind is always moving faster. (An exception can be if you’re on a bluff where wind is being funneled up to your position. That strong breeze, usually in your face, is often not a good indicator of what’s happening over the course of a bullet’s flight.)
在长时间的镜头上，您的子弹将在更快的风矢量中高高飞向地面上方，因此在弄清楚风溶液时，您需要考虑到这一点。
Conversely, shots that go downhill into a gulley will often experience less wind than what you’re reading at the shooting position. Learning how wind behaves in different types of terrain will help you refine your guess and make better calls.
Ballistic Apps
距离和风是获得发射解决方案的两个关键输入。工作的事情是弹道计算器，它是设备上的应用程序，要么是带有kestrel的独立设备，要么是带有车载弹道的双筒望远镜。
There are very good apps that are available for not much money (or free) that you can use. Two of the best are the Hornady 4DOF app and AB Mobile.
When setting up an app with the inputs from your rifle and ammunition the best thing to remember is, good data in, good data out.
You’re going to want to chronograph your ammunition to get an accurate muzzle velocity. The calculators need a good ballistic coefficient value or drag curve model for your bullet. (Some apps will populate that automatically from a drop-down list.)
You’ll also need good measurements from your rifle, such as the twist rate of your barrel, and the exact placement of your rifle’s zero. The height of the scope above the bore is also key. Measure that with either calipers or a measuring tape with 1/16thinch marks.
Lastly, you’ll need to enter in other environmental data, including temperature, barometric pressure and humidity. (Though humidity is the least important of these.) Some units, like the Kestrel, measure environmentals for you. Other times you’ll need to grab that data from a nearby weather station and input them yourself.
Once this is done, you’re ready to start shooting. If your inputs are good, you should be ready to rock and roll out to 600 yards. Once you start going beyond that—and certainly once you’re past 1,000 yards—you’re going to need to fine tune your dope, which we’ll cover in the next article.
