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February 22nd, 2017

Mirage Is Your Friend — Great Article on Reading Mirage

South Texas Mirage Reading article
Diagram from SouthTexasShooting.org.

South Texas marksmanship trainingThere is an excellent article about Mirage on the South Texas Marksmanship Training Center (STMTC) website. This article explains what causes mirage and how mirage can move the perceived aiming point on your target. Most importantly, the article explains, in considerable detail, how you can “read” mirage to discern wind speeds and wind directions.

Mirage Is Your Friend
While hot days with lots of mirage can be frustrating, mirage can reveal how the wind is flowing (and changing). If you learn how to recognize and read mirage patterns, you can use that information to shoot higher scores. That’s why many leading long-range shooters tell us: “Mirage is your friend.” As the STMTC article explains: “A mirage condition is not a handicap, since it offers a very accurate method of perceiving small wind changes[.]”

CLICK HERE to Read Complete Mirage Article

Mirage Illustrated with Diagrams
With simple but effective graphic illustrations, this is one of the best explanations of mirage (and mirage reading) we have found on the internet. This is a “must-read” for any serious competitive shooter. Here is a brief sample from the article, along with an illustration. NOTE: the full article is six times longer and has 8 diagrams.

South Texas Mirage Wind Diagram displacement

The term “mirage” as used by the shooter does not refer to a true mirage, but to heat waves and the refraction of light as it is bent passing through air layers of different density. Light which passes obliquely from one wind medium to another it undergoes an abrupt change in direction, whenever its velocity in the second medium is different from the velocity in the first wind medium; the shooter will see a “mirage”.

The density of air, and therefore its refraction, varies with its temperature. A condition of cool air overlaying warm air next to the ground is the cause of heat waves or “mirage”. The warm air, having a lower index of refraction, is mixed with the cooler air above by convection, irregularly bending the light transmitting the target image to the shooter’s eye. Figure 1 shows (greatly exaggerated) the vertical displacement of the target image by heat waves.

South Texas Mirage Reading article

Heat waves are easily seen with the unaided eye on a hot, bright day and can be seen with spotting scope on all but the coldest days. To observe heat waves, the scope should be focused on a point about midway to the target. This will cause the target to appear slightly out of focus, but since the high power rifle shooter generally does not try to spot bullet holes, the lack in target clarity is more than compensated by clarity of the heat waves.

Story tip from Boyd Allen. We welcome reader submissions.
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February 22nd, 2017

Bushnell Brawl Featured on Shooting USA Today

ShootingUSA Bushnell brawl Impossible Shots

ShootingUSA Bushnell brawl Impossible ShotsThis Wednesday, February 22nd, Shooting USA TV features the Bushnell Brawl, a tactical competition that draws top long-range shooters from military, law enforcement and civilian shooting communities. The match is held at the famed Rifles Only range in Kingsville, Texas. The Brawl is a one-of-a-kind physical and mental challenge that tests shooters’ abilities to read wind, figure ballistics, and adapt to difficult shooting scenarios. There is even a helicopter stage.

Helicopter Stage at 2014 Bushnell Brawl in Texas:

Shooting from a helicopter, shooting off of a wire, and shooting from the physically demanding maze called the Mouse Trap. These are just a few of the unique courses of fire at the Bushnell Brawl, part of the PRS series. Over the course of two days, competitors tackle more than a dozen stages. In addition, Bushnell hosted a special one-day event for the new PRS Production Class. This new division should attract new shooters by limiting the cost of equipment — making PRS competition more affordable.

This image is from Bushnell Brawl Barricade Stage (SEE Video):
Bushnell Brawl PRS tactical texas barricade

New PRS Production Division — Lowering the Cost of Entry
The Production Division is a new PRS classification. Under Production Division rules, the rifle must not exceed $2000.00, and rifle + scope combined must not exceed $3000.00. All other accessories, such as bipod, rear bag, and the sling, can be added at the shooter’s own discretion. Even with these cost limits, you can put together a great rig: “There’s a lot of gear out there that’s not that expensive,” says Production Division Match Director Jacob Bynum. For example, you can get the new Tikka T3X TAC A1 in 6.5 Creedmoor for $1798.00.

Tikka T3X TAC A1 Eurooptic

Shooting USA Hour on Wednesday Primetime

AIR TIMES BY TIME ZONE
Eastern Time: Wednesday 9:30PM, 1:00 AM
Central Time: Wednesday 8:30 PM, Midnight
Mountain Time: Wednesday 7:30 PM, 11:00 PM
Pacific Time: Wednesday 6:30 PM, 10:00 PM

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