One Dollar Do-It-Yourself Mirage Shield
Want to shoot better scores at your next match? Here’s a smart, inexpensive do-it-yourself project from the good folks at Criterion Barrels. For less than one dollar in materials, in just a few minutes you can create a handy, effective mirage shield, custom-fitted to your favorite rifle.
All precision shooters should be familiar with mirage, a form of optical distortion caused primarily by variations in air temperature. Savvy shooters will use mirage as a valuable tool when gauging wind speed and direction. Natural mirage is unavoidable, but there are many techniques designed to limit its influence in long-range marksmanship.
A form of mirage can be produced by the barrel itself. Heat rising from the barrel may distort sight picture through your optics, leading to erratic results. Mirage caused by barrel heat can be reduced dramatically by a simple, light-weight mirage shield.
How to Make a Mirage Shield
|
A mirage shield is an extremely cost-effective way to eliminate a commonly-encountered problem. Making your own mirage shield is easy. Using old venetian blind strips and common household materials and tools, you can construct your own mirage shield for under one dollar. |
Materials Required: |
1. Measure the distance from the end of the receiver or rail to the crown of the barrel.
2. Using a pencil and ruler, measure the same distance and mark an even line across the blind.
3. Cut across the line using scissors or a box cutter, shortening the blind to the required length. (Remember, measure twice, cut once!)
4. Expose the adhesive backing on the loop side of the Velcro. Center and apply the Velcro strips on the barrel at regular intervals.
5. Expose the adhesive backing of the fuzzy side of the Velcro.
6. Place the blind on the upper side of the barrel. Apply downward pressure. Once the Velcro has secured itself to the barrel, separate the two sides. Proceed to mold both sides of the Velcro to fit the contour of their respective surfaces.
7. Reaffix the blind. Barrel related mirage is now a thing of the past!
How to Remove and Re-Attach the Mirage Shield
Removal of your mirage shield is accomplished by simply removing the blind. You can un-install the Velcro by pulling off the strips and then gently removing any adhesive residue left behind using an appropriate solvent. (Simple cooking oil may do the job.) Caution: With fine, high-polish blued barrels, test any solvent on a non-visible section of the barrel. Before storing the gun, re-oil the barrel to remove active solvents and residual fingerprints.
Similar Posts:
- One Dollar DIY: Make a Mirage Shield from a Venetian Blind
- Make Your Own Mirage Shield from Low-Cost Venetian Blind
- Mirage Shields — Make Your Own or Buy Carbon Fiber
- Mirage Shields–Don't Leave Home Without One
- Mirage Shields–For Varminters as Well as Benchrest Shooters
Tags: Criterion Barrels, Heat, Heat Guard, Mirage, Mirage Shield, Optics
Isn’t it installed upside down? Why would you install it arched side up keep the heat in the center only to radiate through the shield and still create a mirage. Flip it over so the heat dissipates outward away from the scope centerline.
Good point Daren!
I set it up that way so that the angle of the velcro on the barrel mated better with the contour of the blind, making the adhesive application a bit easier.
I’ll have to try making an inverted duplicate and see if there’s a noticeable difference.