To be honest, when we read the description of Trijicon’s new Ventus device, we thought it sounded like science fiction. This quad-collimated laser rangefinder/wind-reading gizmo seems like something Captain Kirk would use on Star Trek. According to Trijicon, the Ventus is “the world’s first advanced wind-mapping and range-detecting handheld device.” That’s right folks, this is a rangefinder that also “measures three-dimensional wind velocities at multiple distances out to 500 yards”. Combined with a claimed 5000-yard ranging ability (on reflective objects), Trijicon says its new Ventus gives “shooters and hunters previously unattainable data about their environment for long-range accuracy.”
The Ventus unit is designed with a Doppler LIDAR engine that can measure headwind, tailwind, crosswind and vertical wind components at six different distances, in any weather condition. The higher-end Ventus X Model also includes an onboard ballistics solver which communicates, via Bluetooth, with the Trijicon Ballistics App. This allows Ventus-X users to store shooter and target geographic locations, calculate ballistic solutions, and display wind maps.
The Ventus utilizes an advanced Doppler LIDAR engine and four collimated lasers sent out in a cone to measure wavelength interaction with dust particles at up to six different distances.
Four Collimated Lasers Read the Wind via Doppler LIDAR
How does the wind-reading work? Trijicon states: “Thanks to a fiber optic collimated laser capable of returns through dust, fog, sleet, and snow, the Ventus offers extreme, all-weather performance. Four collimated lasers [are] sent out in a cone to measure wavelength interaction with dust particles at up to six different distances. This technology allows the Ventus to calculate for head, tail, cross and vertical wind, giving shooters an incredibly accurate wind reading.”
Ventus X Model Includes Advanced Ballistics Solver
The Ventus comes in two models: Ventus and Ventus X. The basic Ventus handles ranging duties. The upgraded Ventus X adds a state-of-the-art, onboard ballistics solver. An onboard sensor suite captures all necessary data — range, wind, atmospheric temperature, stratospheric pressure, and incline angle — to provide a very advanced ballistic solution.
The Ventus X also communicates via Bluetooth to the advanced Trijicon Ballistic application, soon to be available for both iOS and Android. The Ballistic App stores shooter and target geographic locations, provides a ballistic solution, and displays a wind map overlay of readings.
The U.S. Army Marksmanship Unit (USAMU), in cooperation with Shooting USA TV, has created a series of instructional Pro Tip pages covering a wide range of shooting disciplines. All totaled, there are more than 50 USAMU Pro Tips. Most relate to rifle marksmanship but there are also numerous tips for shotgunners and pistol shooters. Each Pro Tip entry includes multiple photos and 6-15 paragraphs, in an easy-to-follow format. Many Pro Tips also include an instructional video produced by Shooting USA. Here are three Pro Tip videos, and links to seven more Pro Tip web pages.
USAMU TOP TEN PRO TIPS
1. Reading the Wind with SGT Sherri Gallagher.
Apart from gravity, wind has the most pull on the bullet as it travels down range. Being able to accurately read the wind and mirage will greatly enhance your performance on the rifle range. National Champion, SGT Gallagher gives you some of her tips.
2. Angle Shooting with SFC (Ret.) Emil Praslick.
SFC Praslick shows you how to determine the angle to your target, and then how to include that to change your data necessary to hit your target on the first shot.
3. Rifle Grip, Stance and Body Position for 3-Gun with SFC Daniel Horner.
Professional 3-gun marksman SFC Daniel Horner, U.S. Army Marksmanship Unit (USAMU), give tips on how to properly handle a semi-automatic rifle, including grip, stance and body position.
Wind effects are complex. In trying to access wind speeds and angles, you’ll want to watch multiple indicators — mirage, dust, wind-flags, grass movement, and more. You’ll also need to be concerned about wind cycles. In the video below, Bryan Litz talks about variable wind speed along a bullet’s flight path. A respected ballistics guru, Bryan is the founder of Applied Ballistics and a designer of Berger’s Hybrid Match projectiles. He is also a past F-TR National Champion and a High Master Palma ace.
In this video, Bryan discusses how wind effects can vary in intensity at different points along the bullet’s flight path to the target. Sometimes the firing line is sheltered, and the strongest winds come into effect in the middle of the trajectory. Bryan concludes: “Wind matters everywhere … but the best thing you can do is try to get a handle on the wind [velocity and angle] where you are. That may or may not represent the wind down-range — that’s when you have to look downrange and make a judgment[.]”
Litz Competition Tip: Select your wind shooting strategy carefully. For beginners and veterans, most points are typically lost to wind. Successful shooters put a lot of thought into their approach to wind shooting. Sometimes it’s best to shoot fast and minimize the changes you’ll have to navigate. Other times it’s best to wait out a condition which may take several minutes. Develop a comfortable rest position so you have an easier time waiting when you should be waiting.
More Wind Tips from Wind Wizard Emil Praslick
In these two short videos, Emil Praslick III, former coach of the USAMU and USA National long range teams, explains how to find the wind direction and how to confirm your no-wind zero. Praslick is widely considered to be one of the best wind coaches in the USA.
When Winds Are EXTREME — Near Gale Force at Ben Avery
This video shows INSANE winds at NBRSA 100/200 Benchrest Nationals. This was filmed at the Ben Avery Range in Phoenix, AZ during the recent NBRSA 100/200 yard National Championships. Extreme to say the least. Based on what we’re seeing here, there are 20-25 mph crosswinds, with gusts to 35 mph — near Gale Force. Video by Hall-of-Fame Benchrest competitor Gene Bukys.
Texas gunsmith Mike Bryant reports: “This video shows the Unlimited Class 200 at the Nationals in Phoenix. I had three 10-shot groups in the low 2″ range with a 2.228″ being my big group and was glad they weren’t bigger. Thursday and Friday were the worst of the windy days. Unfortunately those were the days for the UL 200 and it was about as windy through most all of the Sporter 200.”
Excellent Wind Reading Resource
The Wind Book for Rifle Shooters covers techniques and tactics used by expert wind-readers. The authors provide a wind-reading “toolbox” for calculating wind speed, direction, deflection and drift. They explain how to read flags and mirage, record and interpret your observations, and time your shots to compensate for wind. Here are two reviews:
This is a must-have book if you are a long-range sport shooter. I compete in F-Class Open and when read it from cover to cover, it helped me understand wind reading and making accurate scope corrections. Buy this book, read it, put into practice what it tells you, you will not be disappointed. — P. Janzso
If you have one book for wind reading, this should be it. It covers how to get wind speed/direction from flags, mirage, and natural phenomenon. This is the best book for learning to read wind speed and direction. — Muddler
Emil Praslick III is widely recognized as one of the greatest wind wizards on the planet — a master at identifying wind value and direction, and predicting wind cycles. As coach of the USAMU and top civilian teams, Emil has helped win many high-level championships. In the three videos we feature today, Emil, who works with Capstone Precision Group (Berger, Lapua, SK, Vihtavuori) and Team Applied Ballistics, explains how to determine wind direction and velocity using a variety of indicators. Praslick, now retired from the U.S. Army, was an 18-time National and 2-time World Champion coach with the USAMU.
Video ONE: Wind Theory Basics — Understanding “Wind Values”
In this video from UltimateReloader.com, Emil explains the basics of modern wind theory. To properly understand the effect of the wind you need to know both the velocity of the wind and its angle. The combination of those variables translates to the wind value. Emil also explains that the wind value may not be constant — it can cycle both in speed and velocity. Emil also explains some of the environmental conditions such as mirage that can reveal wind conditions.
Video TWO: Determining the Direction of the Wind
Key Point in Video — Find the Boil
Emil explains how to determine wind direction using optic. The method is to use spotting scope, riflescope, or binoculars to look for the “Boil” — the condition in mirage when the light waves rising straight up. The wind will generate that straight-up, vertical boil in your optics when it is blowing directly at you, or directly from your rear. To identify this, traverse your scope or optics until you see the boil running straight up. When you see that vertical boil, the direction your optic is pointing is aligned with the wind flow (either blowing towards you or from directly behind you).
Video THREE: The No Wind Zero Setting
In this second video, Emil defines the “No-Wind Zero”, and explains why competitive shooters must understand the no-wind zero and have their sights or optics set for a no-wind zero starting point before heading to a match. In order to hit your target, after determining wind speed and direction, says Emil, “you have to have your scope setting dialed to ‘no wind zero’ first.”
Coach of Champions — Emil Praslick III
SFC Emil Praslick III, (U.S. Army, retired) works with Berger Bullets and Applied Ballistics. Emil served as the Head Coach of the U.S. National Long Range Rifle Team and Head Coach of the USAMU for several years. Teams coached by Emil have won 33 Inter-Service Rifle Championships. On top of that, teams he coached set 18 National records and 2 World Records. Overall, in the role of coach, Praslick can be credited with the most team wins of any coach in U.S. Military history.
“The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.” — William Arthur Ward
Readers often ask us: “Is there a decent, easy-to-comprehend book that can help my wind-reading?” Many of our Forum members have recommended The Wind Book for Rifle Shooters by Linda Miller and Keith Cunningham.
New Hardback Edition Releases February 19th
A NEW hardback edition of The Wind Book will released on February 19, 2019. This 152-page book, first published in 2007, is a very informative resource. But you don’t have to take our word for it. If you click this link, you can read book excerpts and decide for yourself. When the Amazon page opens, click the book cover (labeled “Look Inside”) and another screen will appear. This lets you preview the first few chapters, and see some illustrations. Along with the new hardback edition ($21.99) Amazon offers a Kindle (eBook) edition for $14.99.
Other books cover wind reading in a broader discussion of ballistics or long-range shooting, such as Applied Ballistics for Long-Range Shooting by Bryan Litz. But the Miller & Cunningham book is ALL about wind reading from cover to cover, and that is its strength. The book focuses on real world skills that can help you accurately gauge wind angle, wind velocity, and wind cycles.
All other factors being equal, it is your ability to read the wind that will make the most difference in your shooting accuracy. The better you understand the behavior of the wind, the better you will understand the behavior of your bullet. — Wind Book for Rifle Shooters
The Wind Book for Rifle Shooters covers techniques and tactics used by expert wind-readers. There are numerous charts and illustrations. The authors show you how to put together a simple wind-reading “toolbox” for calculating wind speed, direction, deflection and drift. Then they explain how to use these tools to read flags and mirage, record and interpret your observations, and time your shots to compensate for wind. Here are two reviews from actual book buyers:
I believe this is a must-have book if you are a long-range sport shooter. I compete in F-Class Open and when I first purchased this book and read it from cover to cover, it helped me understand wind reading and making accurate scope corrections. Buy this book, read it, put into practice what it tells you, you will not be disappointed. — P. Janzso
If you have one book for wind reading, this should be it. Whether you’re a novice or experienced wind shooter this book has something for you. It covers how to get wind speed and direction from flags, mirage, and natural phenomenon. In my opinion this is the best book for learning to read wind speed and direction. — Muddler
The digital archives of Shooting Sports USA magazine (SSUSA) features an Expert Forum on Wind Reading. This outstanding article on wind reading starts off with a section by ballistics guru Bryan Litz, author of Applied Ballistics for Long-Range Shooting. Then four of the greatest American shooters in history share their personal wind wisdom. Lanny Basham (Olympic Gold Medalist, author, Winning in the Wind), Nancy Tompkins (Past National HP Champion, author, Prone and Long-Range Rifle Shooting), David Tubb (11-Time Camp Perry National Champion), and Lones Wigger (Olympic Hall of Fame) all offer practical wind-reading lessons learned during their shooting careers.
Whether you shoot paper at Perry or prairie dogs in the Dakotas, this is a certified “must-read” resource on reading the wind. Here is a sample selection from the article:
Shooting Sports USA magazine (SSUSA) has a modern, mobile-friendly website with tons of great content. Log on to www.ssusa.org. There you’ll find current news stories as well as popular articles from the SSUSA archives. The SSUSA website also includes match reports, gear reviews, reloading advice, plus expert marksmanship tips from the USAMU.
In this article, three great champions reveal their wind-calling secrets in video interviews. We first published this “Three Champions” story a few years ago. If you are a competitive shooter, and you want to learn more about reading the wind, you should watch all three of these interviews. These guys are among the best shooters to ever shoulder a rifle, and they have much wisdom to share.
At the 2010 SHOT Show, we had the unique opportunity to corner three “superstars” of High Power shooting, and solicit their wind-reading secrets. In the three videos below (in alphabetical order), Carl Bernosky (10-Time Nat’l High Power Champion), David Tubb (11-time Nat’l High Power Champion and 7-time Nat’l Long-Range Champion), and John Whidden (5-Time Nat’l High Power Long-Range Champion) shared some of the wind-doping strategies that have carried them to victory in the nation’s most competitive shooting matches. This is GOLD folks… no matter what your discipline — be it short-range Benchrest or Long-Range High Power — watch these videos for valuable insights that can help you shoot more accurately, and post higher scores, in all wind conditions.
We were very fortunate to have these three extraordinarily gifted champions reveal their “winning ways”. These guys REALLY know their stuff. I thought to myself: “Wow, this is how a baseball fan might feel if he could assemble Babe Ruth, Hank Aaron, and Ted Williams in the same room, and have them each reveal their hitting secrets.” Editor’s Note: These interviews were conducted before all three men won their most recent National Championships so the introductions may list a lower number of titles won. For example, John Whidden won back-to-back LR Championships in 2016 and 2017/
Enjoy the Shooting Sports USA Archives
Winter is right around the corner. Soon we’ll all be spending more time indoors. For some folks, that means long sessions in front of the boob tube. We have a better idea — there’s a vast resource of good gun-related content available online for free. Check out the Shooting Sports USA Articles Archive. SSUSA maintains a vast digital library with hundreds of articles going back to June 2009.
It’s easy to find back issues of Shooting Sports USA magazine. Here’s how: Using the gray Toolbar at the top, click on the “Archives” icon in the upper right area (blue arrow) and you’ll be presented with a selection of magazine covers/dates in a vertical column. Simply use the vertical scroll bar to go from 2017 all the way back to 2009. Click any issue cover to read.
How to Find and Save Articles
To search through back issues, select “More Options” from the gray Toolbar. Then click the “Search” button. When that opens, select either “Search archives” for ALL back issues or select “Search Only this Issue”. When you’ve made your choice, enter your search term(s). For example, you could search for “F-Class” or “Camp Perry”. You can also save any archived issue for viewing offline as a PDF file. Just click “Save” to download the article you’re reading.
Read Sample Articles
Here are a couple of our favorite SSUSA feature stories from recent years. There are hundreds of other informative articles worth reading.
“A big congratulations to Bob Mead (1582-68X), who utterly destroyed the competition in tricky wind conditions to take the Gold.” — Jay Christopherson, 2017 F-Open Nationals Second Place.
In this 15-minute video, Team Lapua’s Erik Cortina interviews Robert Mead, the 2017 LR F-Open Champion. Robert (Bob) discusses his wind reading techniques with Erik, and the newly-crowned F-Open Champ explains how to set up a reliable wind zero. Bob also discusses cartridge choices in F-Open. He admits the straight .284 may be the tightest grouping 7mm cartridge, but he has used the 7mm RSAUM for a decade now. He believes the RSAUM may the best cartridge for 1,000 yards in 7mm, all things considered (grouping ability, ballistics): “To me it’s a light magnum, it’s capable of high speed, yet burns less powder than your regular magnums. [But] it’s a finicky cartridge — you’ve got to do a fair amount of load development.”
Every serious F-Class competitor should watch this video start to finish:
Credit Erik Cortina for video and the photo of Robert Mead with trophy above.
CLICK HERE to see full-screen version of Wind Plot.
The Battle of Nations begins. Today is Day 1 of international team competition at the 2017 F-Class World Championships (FCWC) in Ottawa, ON, Canada. Talented teams, in their nation’s colors, will be competing for glory and national pride.
Team shooting is very different than individual competition. Typically a team coach makes the wind calls for the shooters. In some cases (where the rules allow), the wind coach even dials elevation and windage changes for the active shooter. For the wind coach to do his job effectively, he must follow the changes in the wind and determine what the correct wind call should have been for each shot. (In other words — what was the “right call”)
Past F-TR USA Nat’l Champ Bryan Litz was wind coach for the winning 4-man LUM F-TR Team at the 2017 Canadian F-Class Championships, which preceded the FCWC Worlds. Here Bryan explains how he uses a Wind Plot to make better wind calls, helping his team-mates maximize their scores.
Wind Plot Methodology by Bryan Litz
The wind plot I use is a running history of what the correct wind call was for every shot fired. The more you shoot, the more history you have in a condition, and I find that very useful information. This kind of plot IS NOT showing where the bullet hit, and is NOT showing what you held. It’s showing what you should have held to center each shot. IMO, this is the most valuable information to have when guessing where to hold next for each shot. Here are some key points:
1. I always look for blocks of stable conditions to shoot in and wait out the rest.
2. If the wind plot shows drastic changes, either I’m not picking the right time to shoot or it’s just a really unstable wind condition.
3. When you see many shots using the same hold (e.g. Robby’s 700m and 900m strings on plot), it can indicate very fast shooting and fast pit service.
Q. What are the numbers and Markings on this Wind Plot?
Litz: The wind plot represents the rings on the target. Left 2 for example, is the 5 line on the international target, while Left 2 is the 10 line on the USA target. F-Class shooters and coaches talk about wind holds in relation to these rings. A Left 2 hold isn’t left 2 MOA or 2 MILS, it’s the second ring from center. The vertical lines on the plot represent the rings going out from center, 4 or 5 in each direction. A left or right 5 hold is edge of black on the int’l target.
Q: What Does this Specific Plot Reveal?
Litz: Looking at the plot, from left to right is 700m, 800m, and 900m that we shot progressively through the day. Top to bottom shows each shooter in sequence (shooters names are shown by their blocks). To the right I note what was on the gun for that shooter, and note when it changes. Often times we run the same wind on the gun for several shooters but if it changes, I note what the new windage is and continue on. For example if we’re settled into a condition where we’re shooting Vs with a right 3 hold, I might adjust the scope 1 MOA right because a right 3 hold is equal to 1 MOA. So we can move the scope and start shooting with a center hold.
Q. Are you Plotting Where the Bullet Hits?
Litz: Not exactly. This kind of plot IS NOT specifically showing where the bullet hit, and IS NOT showing what the shooter held. It’s showing what the shooter should have held to center each shot. IMO, this is the most valuable information to have when guessing where to hold next for each shot.
On each shot, the shooter or coach takes a guess about where to hold, and fires the shot. If the bullet hits the center, you plot the point right where you held because it was the correct hold. However, if you miss the call, you plot what hold was required to put that shot in the center. For example if you shoot a right 3 and hit where you held, the correct call would have been “center”. In this way, you’re building a history of what you should have done, which may or may not be what you actually did. This shows you the trends, and brackets which can be used to make future decisions.
Q: Is this Type of Wind Plot Something New?
Litz: I didn’t invent this method, it’s been around a long time. Vertical can be plotted the same way. In team matches, we have a plotter who is advising on elevation trends and suggesting corrections. But, as wind coach, my job is the horizontal so I only keep the wind plot. I have learned lots of strategies from my coaches Emil Praslick and Steve Hardin.
There are many ways to plot and many standard work sheets for this. They’re all tools and the key is to find something that works for you in different situations. I don’t keep a plot when I am personally behind the trigger string firing because I lose more points when I take the time to do it vs. just shooting fast. When pair firing or coaching, I can keep the wind plot without compromising the shooting.
Team Australia used plots and comms linking coaches to help win the 2013 F-Open Team World Championship. We expect other teams will follow suit in Canada in 2017.
Know Your Goal — Keep It Simple
Know your goal of plotting. The simplest plot is where you write the shot number where it hit on a target face. This kind of plotting is useful for evaluating shooter performance because it shows how big the group is (in particular the vertical dispersion). However keeping a plot like this does little to help you figure out the wind. It just shows you what shots you messed up on. It does nothing to help you find the center. [Editor: That’s a whole different matter with many variables.] The wind plot I use is a running history of what the correct wind call was for every shot fired. The more you shoot, the more history you have in a condition, and I find that very useful information.
