How to calculate wind speed for shooting

  • One of my primary shooting goals for the year 2012 is to become competent at shooting longer ranges in the wind. 19 May 2011 NSSF's Ryan Cleckner explains how to estimate wind speed, shares a formula for calculating wind drift, and explains how ballistic charts and  6 Jan 2014 Make sure to subscribe to the Gunwerks Youtube channel for more great long shots, tough shots, shooting tips, DIY & Ballistics. May 25, 2020 · Qs is the wind stagnation pressure and is equivalent to the wind pressure calculation from the previous equations: Qs = 0. All you need to calculate wind chill at home is a measurement of temperature and wind speed. Averaging Wind Direction is different than simply averaging a set of numbers. If you move 60 degrees away from the target to estimate wind, multiple your wind read by 2. A wind angle of 0 degrees would be a wind that is blowing in the shooter's face wind speed and direction, and then determine the amount of bullet deflection at a   4 Feb 2019 Shooting in the wind is part guesswork, part science and totally hold in a 10 mph wind at a known distance, you'll be able to quickly determine your to read the wind, we'll look at ways to assess wind speed in a future post. Scientific Calculator Simple Calculator. To find the coefficient of power at a given wind speed, all you have to do is divide the electricity produced by the total energy available in the wind at that speed. For altitude, if the wingspan of the plane is less than the diameter of the button on the end of the transmitter antenna, you're too high to be flying near an airport. In this guide I will teach you everything you need to know about wind in Golf Clash and how to adjust properly (plus how accuracy and other stats are part of this) and in the end I will forge that knowledge into a simple formula that will let you play Jul 15, 2016 · Calculating distance in the wind – Downwind When playing downwind use 0. The formula goes like this: Multiply the hundreds of yards by the wind speed in mph, then divide that value by the wind factor (12 for our 168gr load). how to calculate the total power available in a given area of wind. 1 Mil Target Knob Settings (pdf) Getting the Most from your Laser Rangefinders (pdf) Target Knob Settings at 0. Wind Speed (Avg) The average over the  Automatic Atmosphere, Automatically populate Altitude, Temperature, Pressure, Humidity and Wind Speed by pulling data from the nearest weather station  5 Aug 2013 A precision shooter must have basic elevation and windage With the Marine formula you must pre-calculate a windage “factor” for your given load. The weight-to-surface area ratio is the determining factor. Wind (kts) is the wind speed in knots, Wind (mph) is the wind speed in miles per hour, Wind (km/h) is the wind speed in kilometers per hour, Wind (m/s) is the wind speed in meters per second. tapered heel at higher wind speeds is academic, given how hard it is to estimate drift in strong wind,  An optional, additional wind speed used in the shooting solution. I feel they're are not using a calculator, like myself that takes time, to figure the correct yardage. Calculating Wind Loads on Buildings . Now we need to capture the wind speed and direction. 10 metres. The basic formula is 1. Aug 23, 2005 · For wind speed, this simple chain is sufficient. Here are two reviews: This is a must-have book if you are a long-range sport shooter. The power curve of the wind turbine provides how much electrical energy produced by the power in wind turbine for different speed levels. Aug 10, 2015 · Wind Estimation and Compensation | Long-Range Rifle Shooting with Ryan Cleckner - Duration: 17:34. 15 mph. 308 data (above) tells you to aim 7 inches into that 3 o'clock wind. Wind Turbines are shooting uphill or downhill, when the wind can lift the pellet if it gets underneath, or push it down especially on downhill shots. Finding the correct windage and elevation adjustments for a given distance when sighting in a rifle is extremely important for precision shooting. The direction of fire to  11 May 2011 He asked, "If you have a wind from left to right, will the wind push the entire arrow right? country or in the West, you need to learn how the wind affects your shooting. You're using Federal . 00256 x V 2, where V is the speed of the wind in miles per hour (mph). 14 Jun 2015 Learn to judge wind speeds by feel at the shooting location. Balancing tilt expressed by an integral equation ? 4. Divide the angle by four. The two biggest variables that affect a bullet's flight are wind and gravity. Fast TSR (λ) = If the rotor of the wind turbine spins too That’s why I worked on a more simple way how you can deal with the wind without guessing and without having half a library with you ⛳️. Return value. Wind speed Wind deflection of a bullet is a direct, linear function of wind speed. Dec 15, 2018 · You can use grass, trees, bushes, and ground debris to help you estimate wind speed based on how various objects move in reaction to the wind. A left to right wind of 4-6 mph will cause mirage to bend to the right at about a 45 degree angle. g. x Speed in MPH/15 (math constant)= MOA Windage. What is the formula for the wind chill script? This handy chart is useful in determining how fast the wind is blowing. I'd like to use a log wind profile to achieve that. We're not talking about mirage in movies, with  Accurately Measure or Estimate Wind Speed. Now that all the gun, bullet, target, wind, and environmental inputs have been set in the Kestrel, the solution provided on the targeting screen will be I have ERA-I 10m wind data covering the northern half of Africa and I would like to infer the 2m wind speed. Worksheet for Calculating 0. Actual available wind power can be calculated. We use your calculator ideas to create new and useful online calculators. 047 inches at 100 yards, or, for practical purposes, 1 inch at 100 yards. Step 1. If I'm at a range, then there are likely flags that will tell you the wind direction and, based on the way the flag is moving, you can estimate the wind speed. The computerized navigation system calculates the TAS of the aircraft using inputs from pitot tubes, static ports and other corrections to find the true air speed (TAS) of the aicraft. 2 and EN 1991 (EC1). Alas, unlike gravity, wind force and direction are not constant. 1. 30/06 bullets at 2,700 fps, and the wind is coming at 10 mph from a right angle, allow 1 inch at 100 yards, 2 inches at 200, 6 inches at 300, and 12 inches at 400. Multiple your 10 mph figures for a direct crosswind by half. Cut-in wind speed, rated wind speed, shut-down wind speed and rated power for windmills with 20% and 40% efficiency. The wind has no sideways component, so your bullet won’t move left or right, at least 1, 5, 7, and 11 o’clock: ½ value. The theoretical and rated wind power generation from a typical windmill is indicated in the "wind speed-power curve" below. The National Weather Services provides helpful conversions between mph and knots for wind speed. Wind chill attempts to put a number to this effect, based on the effect of wind on exposed human skin. The reason for calculating wind loads is so you know the wind pressures that your structure needs to prevewnt, thus designing and constructing a safer living environment. The power into the turbine blads is a function of the wind speed to the 3rd power (V times V times V), air density, and swept area of the turbine blades. 00256 x 70 2 = 12. The most accurate method to measure the wind at the shooter's location is with an anemometer. Methods for calculating hold-offs range from "Kentucky windage" to The idea behind this blog is not to teach math it is simply to give the formula to calculate the Average Wind Direction and Average Wind Speed. For calm conditions, you can also use smoke if Sep 23, 2010 · After determining wind direction and speed, use the following formula: Range in 100 Yds. The wind chill calculator only works for temperatures at or below 50 ° F and wind speeds above 3 mph. 1; Making a 2700 Yard Shot; Fast Shots versus Precision Hits (pdf) Jeff Hoffman's Wind Formula (pdf) Shooting Uphill & Downhill (pdf) Considering Terminal Ballistics (pdf) Shooting In The Wind Jun 04, 2020 · A strong wind can greatly increase the rate of heat loss in cold weather. Win $100 towards teaching supplies! We want to see your websites and blogs. The formula you need is: Here, ρ is the density of air (which varies with elevation and temperature but can be taken as 1. You only estimate wind. This article discusses why a non-professional shooter should consider long range to measure using your Wind/Weather Gauge are temperature, wind speed  20 Dec 2017 You need to be measuring from the turret of your scope and not anywhere else. For example, if the flag is at a 60-degree angle from the flagpole, then dividing by 4 computes to about 15 miles per hour (mph) for the wind speed. Wind speed. Most modern aircraft calculate wind speed and velocity using the aircraft’s FMS or GPS as well as traditional static and dyanmic air sources. Divide the flag angle by 4 and you’ll get a pretty good idea of the wind speed. Petzal. Convert Wind Direction in Degrees to Wind Direction in Radians. Best way to determine for you is to shoot and practice in the wind. So a 5. Looking  15 Dec 2018 In terrain with obstructions, whether man-made or natural, you might have a completely different wind speed and direction at your shooting  Many competitive riflemen use their spotting scopes to estimate windspeed and direction by observing mirage. You’ll notice that the 2, 4, 8, and 10 o’clock: ¾ value. In order for a structure to be sound and secure, the foundation, roof, and walls must be strong and wind resistant. One of the guys in the class I took was shooting a 6. See below: When using sin and cos on a calculator or computer, take care to convert from degrees to radians, if necessary. The default is set to "True" for a power law as this is the function that is used by EnergyPlus. With no moving parts, built-in heaters,  25 May 2020 The generic formula for wind load is F = A x P x Cd where F is the force or wind load, A is the projected area of the object, P is the wind pressure, . 56 would use 3 MPH based off the . Corrections in MOA equals range in hundreds of yards multiplied by wind speed in mph divided by 10. The traditional rifleman's way of estimating windspeed is by looking around himself and seeing how the wind affects objects. Shortly after arriving at the ready line, you should determine the speed, direction and value of the wind. In addition to our wind speed converter, you can also convert precipitation values and distances (e. By counting the number of rotations in, say, a minute, we can calculate the speed of the wind. You may also be interested in our Wind Chill Calculator Sep 09, 2014 · BC Based Wind Calculation Method The BC method simply states that if a 308 has the BC of . The calculations will use the wind speed and wind direction data in the following table. The output will be double if u or v is of type double. How did we derive the true weighted average wind speed and wind direction? Below are the steps to take to compute a weighted average wind speed and wind direction. If it's 80+ (plus is right minus is left) go 80 right at the distance and you should be good. This is usually not the case, and we will need to consider another velocity triangle, this time from the viewpoint of looking down on the plane: In this example, Φ = 70-30 = 40°. National Shooting Sports Foundation | NSSF 632,533 views Answer from: TMMC Your scope will tell you wind and distance. When structural engineers and architects collaborate during the design phase for buildings or structures, one of the most important factors requiring consideration is the velocity and imposed load of wind on the building and the constituent components (such as doors and windows). The authors provide a wind-reading “toolbox” for calculating wind speed, direction, deflection and drift. Meaning I still hold my pin in correct alignment and will hold my bubble a 1/4, 1/2 or 3/4 off depending on wind speed and direction. All appropriate metadata will be returned. This easy to use calculator will display the wind speed by location via a wind speed map as prescribed by the above building codes. 5% instead, so judging your distance in the wind would look a bit like this: 100-yard shot with a 5mph tailwind = 98 yards Enter your wind speed measurement in any column at the appropriate height, e. The result of the formula is the MOA value The simplest formula to find the wind load uses the wind speed to determine the magnitude of the force it exerts. where θ is the wind direction using "math" direction, and ws is the wind speed (ie, the magnitude of the wind vector). Wind turbines extract energy by slowing down the wind. The free BallisticsARC iPhone and Android app allows to to calculate a variety of ballistics information when you used with this shooting wind meter wirelessly over Bluetooth (a non-bluetooth version that plugs into your phone’s headphone jack is also available, although it is missing a few features). Mirage can often be seen through your rifle or spotting scope, but the dryer the air, the more difficult it is to see. Enter Here. Wind speed units & wind directions Being able to quicky convert wind speed values from units like knots, beaufort, m/s and km/h to another is quite helpful when you're in a pinch. The speed of the wind (wind velocity) applies pressure when it is in contact with a structure. To have any accuracy when long-range shooting, a shooter needs to calculate the effect of factors such as gravity, air resistance and wind velocity. See Also A guide to calculating wind speed and wind pressures for Australia and New Zealand Calculating the wind speeds can be a complex process in AS/NZS 1170 for site locations in Australia and New Zealand. Actual Available Power. May 29, 2020 · For wind angles on a diagonal, I find using 75% of the wind speed for a 45° angle more accurate than 50%. I will define expert wind reading as the ability, under favorable conditions, to estimate the wind speed in 2½ mph increments. 5 psf. The result will be your wind speed in mph. Using a fan to create different wind speeds, either by setting the fan to different speeds or by placing the plant shoot and potometer at different distances from the fan. 308 BTHP Match. I want to know if there is a formula or a specified range. Estimating the wind's speed is where the greater challenge lies. Calculator Ideas. Proper terminlogoy aside. For example, if your flag is flying at 40 degrees, dividing it by four will give you the result of 10 mph. Other anemometers use wind blades inside a fan type enclosure (these are often called vane anemometers). Always remember to input the correct direction of fire, wind direction and wind speed before taking a shot to make sure the Kestrel is giving you both an accurate elevation and windage hold. A simple version of the wind power formula is shown to the right. Wind varies with height. Former Ranger Sniper Ryan Cleckner explains how to estimate wind speed, shares a formula for calculating wind drift, and explains how ballistic charts and empirical data gathered at the range can The basics of reading the wind still apply at the 600-yard line. 21 Jan 2012 It's easy enough to calculate what a steady wind that's consistent along the flight of the The direction of wind tends to shift, as does its speed. The force of that pressure is the wind load. If you can feel a light breeze on your face is between 3-5 miles per hour, if the leaves on trees are blowing and moving it’s 5-8 miles per hour, if the dust is kicking up it’s 8-12 miles per hour, and if small trees are bending and swaying the wind is between 12-15 miles per hour. When building a structure it is important to calculate wind load to ensure that the structure can withstand high winds, especially if the building is located in an area known for inclement weather. On many long-range shots, the wind may be blowing in one direction and speed at  Digital Anemometer Handheld Wind Speed Meter for Measuring Wind Speed, Shooting HVAC House, Air Speed Meter Wind Speed Instrument with Wind Chill   23 Jun 2017 This makes it hard to use mirage to accurately determine wind speed in high winds. I've played against people in the past that don't take no time at all to hit a very close/good shot. 7 Aug 2017 As with all aspects of shooting, particularly at long range, learning to properly flora; then, you can estimate wind values at range based on the amount of indicate both the wind speed and direction in relation to the target. It is an excellent supplement to building your own anemometer if you are preparing to study wind as a nature topic. Put target where distance and wind meet Wind Load Calculator. TSR refers to the ratio between the wind speed and the speed of the tips of the wind turbine blades. Ballistic Trajectory Calculator Use this ballistic calculator in order to calculate the flight path of a bullet given the shooting parameters that meet your conditions. 8 Jan 2020 They call it the Trijicon Ventus, and claim it can measure wind up to 500 yards away, The wind speed is measured by essentially computing how quickly the However, as any long range shooter knows, wind is a massive  Tips for Highpower, Service Rifle, and Long Range Shooting The first task, determining wind speed, has seen competitors arrive at the firing line toting the  Time of absence, muzzle speed and height attained . $100 Promotion. For example, if the wind speed is 70 mph, the wind stagnation pressure is 0. Array size and shape must match u. Our Wind Force / Side Load Calculator generates the wind load factor according to UBC 97 formula of Force = A x P. How to A tornado is a mobile, rotating vortex of destructive high speed wind. This experiment will step you through making an anemometer and calculating the wind speed based on data collected. Be sure that your arrow will remain in proper spine range for your bow setup… This arrow speed calculator can help you build your arrow for The equation in the OP just adds wind speed to the TAS, and this is only valid if the wind direction is the same as the flight direction. You may plot your results in a separate window by clicking on Plot in the appropriate column. With an ordinary reticle, make your best estimate of what the required distance equals at your target's range, hold that amount off, then break your shot. This calculator enables you to figure out exactly how wind speeds vary with height. The first step is to determine the direction and speed  The key ways wind affects bullet flight are wind direction and wind speed. Beginner or not, determining wind direction and speed can be a challenge – but it’s an essential step in long range shooting that is important for an accurate shot. Dec 15, 2018 · 12 and 6 o’clock: No adjustment. MOA measures the accuracy of the shot taking the distance it was fired from into consideration. Wind Speed All other things being equal, the amount the wind blows the pellet off course is directly proportional to wind speed. Let's say the distance is 300 yards, and there's a 10 mph FULL crosswind at 3 o'clock. 4. Calculator Popups. 2 kg/m 3 based on sea level and a temperature of 15 degrees Celsius), v is the wind speed, and A is the area the wind is striking. For instance, your target is 300 yards away, and there's a 10 MPH wind: 3 x 10 = 30/15 = 2 MOA. 1 knot is about 1. A variable of any dimensionality containing the meridional wind component. Approximate  31 Jul 2019 Power of Weather + Ballistics Available to Every Long-Range Shooter and Hunter alternative with this combination weather meter + ballistics calculator. Calculates wind speed via sqrt(u^2+v^2). 2°C Mar 08, 2014 · If you get on your ballistic calculator and push the wind speeds around until the numbers match what is on their chart you will come to it. There is equipment out there that can help a shooter get closer to the bullseye, and ballistic calculating weather stations are probably the most popular – however, ballistic Jun 23, 2017 · But even in higher winds, the cosine of the wind from the target line will show us the full wind amount of the actual wind affecting the flight path of the bullet. Wind Loads are important consideration in structural engineering in the design of a structure. The feathers on the staff tell you wind speed to the nearest 5 segments of knots, a unit for wind speed. But even in higher winds, the cosine of the wind from the  18 Dec 2018 First Number of the G1 BC gives the shooter his base wind for that bullet ballistic calculator to find the "wind-cheater" speed where every 100  Accurate weather inputs for your ballistics calculator Wind Speed and Direction ; Barometric Pressure; Temperature, Wind Chill, Heat Index, and Dew Point  The wind is an evil beast, to beat it you must first have a good grasp on two wind factors, direction, and speed. Set to "True" to use a power law to translate the wind speed to that at a given height and set to "False" to use a log law to translate the wind speed. October 20, 2011 Speed can be determined by flags or nature as well. 3xx BC for the bullet. 3 Jun 2011 I decided at that moment to come up with some real world examples of wind speed, measure them, and commit them to memory for future  The ultimate stable shooting platform for modern sporting rifles; Height clearance Measures wind speed, average speed and maximum gust; Also measures  Wind speed varies with height above the terrain (wind shear). For every 100 yards the bullet travels, you add 1 inch of inaccuracy. Spin drift, also called gyroscopic drift, occurs when a force is applied to the spinning bullet. According to Wayne, if you’re shooting 180-grain. But you can calculate adjustments based on wind. Description. '? 4. The programme will then calculate wind speeds for other heights. This means that if the wind is blowing 16 mph from 11 o'clock and is a half value wind, the actual mirage will read as 8 mph. One method of estimating wind speed is with a flag. Jan 11, 2010 · This can be eyeballed fairly easily and it doesn’t have to be 100% accurate to give you a reasonable estimate for wind speed. Then you need to figure out a way to accurately determine where left or right of the point you want the ball to land that you aim for by moving the aiming point or by using the early/late ding method. You can use a formula to manually calculate windage and elevation measurements to properly adjust rifle sights. The shooter also needs to understand how spin drift affects a bullet. . What can you do? First, use the flags for  1 Dec 2017 To figure out which way the wind is blowing, take your bottle indicator and The poundage you shoot will also have an impact; the more weight you pull, the as well, though this is a balancing act between speed and weight. I use a calculator with a quick chart I got off this sight years ago to do the distance and wind speed to get me close to the target. The . Also, it takes time to study and calculate before an ethical shot can be taken. I’ve been avoiding addressing the subject of wind in my blog for a few months. Of the many factors related to accurate shooting, wind is the trickiest, as wind can to determine the majority of the weather conditions, including wind speed. Since these angles are Two Ways to Gauge Wind Speed For Long Shots. They explain how to read flags and mirage, record and interpret your observations, and time your shots to compensate for wind. By David E. Compensate for the wind by aiming your gun upwind. Then click outside the field, click Submit, or use the tab key. Adding to SkyCiv's already list of free tools, is the new Wind Load Calculator for ASCE 7-10, AS 1170. 11. 11 Sep 2015 The little flags on each target can be deceiving, and don't always help determine wind strength. This calculator will produce a ballistic trajectory chart that shows the bullet drop, bullet energy, windage, and velocity. Keep in mind, when increasing weight in the front of an arrow, the dynamic arrow spine of the arrow will change. If the wind is coming from 45 degrees instead of 90, you halve these allowances. The total wind power flowing into the turbine is defined by the fairly simple wind power formula, shown to the right. Next, determine the speed of that wind--we'll say it's five mph. P = Wind pressure (lb/ft2) = Ce Cq Qs info here close Hi, I would like to calculate the rotational speed of a wind turbine with a power of 20 kw and average wind speed of 9 m / s. Aug 25, 2013. the elusive nautical mile) with our calculator. TIP: You can use two wind speeds to calculate a windage solution that contains a high  2 Jun 2020 The flag method is the most common method used to estimate wind speed. The main reason is that I honestly don’t consider myself as good at shooting in the wind as I am at the basics. A flag blowing in the wind will naturally blow away from the flagpole,  You may need to enable the option to "Use Phone Compass" within your ballistics app in order to calculate wind direction. Finally, you estimate your target is 600 yards away. If a 12 mph wind was present and the range was 300 yards, then 3 x 12 = 36 and that divided by 10 equals 3. I've used hand   Beginner or not, determining wind direction and speed can be a challenge – but it's an essential step in long range shooting that is important for an accurate shot   17 Nov 2019 So when you're shooting at targets with no wind blowing, you can Another way to compute wind speed that doesn't require a calculator and  25 Nov 2019 However, for most shooters and scenarios this should get you on target or very close when combined with a good wind speed estimate. For example, if the wind was blowing at a 90° angle to the path of the bullet to the target at a speed of 5 feet per second and it took 1/10 of a second for the bullet to travel from the muzzle to the target, then the wind drift could be calculated as: [5 feet/second] x [1/10 second] = 5/10 feet = 1/2 foot = 6 inches. Big help in the wind is to relax, and then relax. That’s why SkyCiv has developed an online wind load tool to help calculate the design wind speed and pressures via our interactive Google Map. Submit Calculator Idea This means less wind drift during through the air. at a given distance and lateral wind speed is how long that arrow is in the air. Supple muscles seem to absorb the wind better. 6 MOA; if they had half-minute click National Match sights, they'd adjust the rear sight 7 click for windage for a full value wind. The amount of hold or adjustment depends on many factors, such as wind speed, bullet type, muzzle velocity and target distance. P a = ξ ρ A v 3 / 2 ξ ρ π d 2 Wind Energy Math Calculations Calculating the Tip Speed Ratio of Your Wind Turbine The Tip Speed Ratio (TSR) is an extremely important factor in wind turbine design. of yards by the wind speed in mph, then divide that value by the wind  In precision shooting, every shot counts when it comes down to points, speed, and exact distance, determining wind drift and elevation adjustments to provide   In a recent post, it has been discussed how to determine a wind hold without using a off the wind angle unless you are using mirage to determine wind speed. However, if you’re observant and you can see the impact that the wind is having on the trees or land features around you, it is possible to estimate wind speed using the Beaufort Scale, originally devised in 1805, by a naval officer in Britain’s Royal Navy who correlated wave heights with wind speeds. The power curve is one of the most important parameters to calculate when considering the wind power generation and this is a parameter of the wind power plant performance. If it’s blowing 20 mph, you double them. May 04, 2016 · That depends on the situation. For a wind turbine to be 100% efficient it would need to It typically features two or three or four wind cups and it spins in the direction that the wind is blowing. So The total wind power flowing into the turbine is defined by the fairly simple wind power formula, shown to the right. 9 km/hr or 1. If you use a bullet with a different BC that first number is the BC value you use for the wind speed. Use your spotting scope to check mirage and vegetation, focusing on the wind closer  20 May 2020 FT Technologies makes The World's Toughest Wind Sensors for measuring wind speed and wind direction. Calculating the wind speed is a simple experiment that can be done with a few materials. This is  Wind Velocity Meters for Long Range Shooting & Military UseAccurate wind Accurate wind speed measurements are crucial to military operations ranging and meter product pages to best determine which meter has the features you need. A multi-dimensional array of the same sizes as u. 5 Creedmore and From what I remember it was like 6-7 mph intervals. 4xx so you use the first number in the BC as the wind or per 4 MPH. 29 Apr 2019 This breeze would move my shot to the edge of that zone. For instance, a wind blowing from a 90 degree angle at 10 mph will deflect a bullet twice as far, at a given distance downrange, as will a 5 mph wind and half as much as will a 20 mph wind. Check the wind speed at the plant with an anemometer placed just in front of the plant at leaf height. The first task, determining wind speed, has seen competitors arrive at the firing line toting the latest in meteorological marvels. Jan 03, 2017 · You don’t calculate wind. That is to say, twice the wind speed means twice the deflection. However, expert level shooting is all that is required for combat sniping. If I wanted the average temperature over 5 readings I would add the 5 numbers and divide by 5… simple grade 4 math. As a sniper wind causes us the most headache when it comes to long range shooting. Input field. Accurate Environmentals - Measures wind speed, wind direction,  20 Mar 2008 By waiting for a steady wind or a lull in the wind, the shooter can balance himself These values, along with the speed of the wind, are used to calculate the sight adjustments to compensate for the wind. 5. WeatherFlow Precision Shooting Wind Gauge. how to calculate wind speed for shooting