January 11, 2022Windflags — Why You Should Use Them Even If You Do Not Compete There is a simple and inexpensive device that can reduce your groups by half. This device is essential for accuracy. The “miracle device” we are referring to is a simple wind indicator, also known as “windflag”. The “miracle device” we are referring to is a simple wind indicator, also known as a windflag. You should always have a set of windflags or some other type of wind indicator with you when you go to the range or prairie dog fields, regardless of whether you are a competitive shooter or a varminter. You can cut down on group size by paying attention to your windflags. Here’s the proof: Which Windflag should you buy? Click Here to see a list of vendors selling windflags. You might be thinking, “Well, I wouldn’t miss a 5mph let-off.” Consider this: If a gentle 2.5-mph breeze shifts from 3 o’clock (R to L), to 9 o’clock (L to R), then you’ve just missed 5 mph net changes. What does that mean for your group? Take a look at the table to see what it will do for your group.
Point Blank Ballistics software for 500? elevation and 70? Temperature. Let’s say you have a 6mm rifle which shoots at half-MOA in no-wind conditions. What happens if you miss the 5 mph shift? This is equivalent to a full reversal in a 2.5 mph crosswind. If you shoot a 68gr flatbase round bullet, your shot will move approximately 0.49 meters. At 100 yards, your group size will almost double. The bullet moves 0.28 with a 105gr VLD. This is not as bad as it sounds, but enough to destroy a small group. An AR15 can shoot 55-grainers at 3300 feet per second. If you miss that 5 mph shift, your low BC bullet moves 0.68? This pushes a half inch group well beyond an inch. It’s worse than 1 MOA if you have a AR capable of shooting half-MOA. As you might expect, wind effects at 200 and 325 yards are even more dramatic. Your 300-yard range could expand by as much as 2.5 mph if you miss a full-value wind change of 5 mph. If you don’t have wind flags, your 300-yard group could easily expand by 2.5 mph if you miss a 5 mph full-value wind change. You can spend a lot on expensive accessories like front rests or spotting scopes, but nothing will improve your shooting more than a good set. The High Power Wind Lab is a new Wind-Reading app that can help you determine your hold-offs in all conditions. This app is available for iOS and Android devices. An Android version will be soon. In this video, our friend F-Class John reviews this sophisticated new Wind App: Aussie Windflag photo courtesy BenchRestTraining.com (Stuart and Annie Elliot).
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