The new-for-2014 Caldwell Crosswind Professional Wind Meter does much more than measure wind velocity. Along with Current Wind Speed, this device will measure and display: Average Wind Speed, Max Wind Gust, Temperature, Station Pressure, Barometric Pressure, Altitude, Density Altitude and even Wind Chill factor. Select among mph, ft/min, km/h, m/s, or knots for the wind speed units.
The swiveling impeller head (set parallel to barrel) allows you to determine an interpolated 90° crosswind value to use in your ballistics calculations. This eliminates a lot of guesswork.
You might say, “Why do I need a rotating head, I can just turn the whole wind meter to align the impeller axis with the wind?” Yes you can, but then you merely get a raw speed value, and you have to guesstimate the wind angle, and then calculate your actual windage correction based on the vector.
The rotating impeller ring on the Caldwell simplifies the job of calculating windage. The swivel head is designed to show an effective 90-degree crosswind value, no matter what the actual wind direction. Here’s how it works. Hold the unit with the display screen facing you. Then rotate the impeller head until it aligns with the barrel axis (bullet line of flight). The plastic shell surrounding the impeller is specifically designed so that the blades will spin faster or slower depending on the true wind angle. This allows the unit to estimate the effective 90-degree crosswind value (for your ballistics program). Pretty clever eh? See diagram to understand how this works:
This unit comes complete with rotating anemometer head, protective holster case, and one CR2032 battery. The unit has an auto “Power-Off” feature to preserve battery life. There is also a “Data Hold” function plus an LCD Backlight. NOTE: When figuring effective 90° crosswind values, Caldwell recommends using Average Wind Speed mode rather than Current Wind Speed.
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Need a high-quality front rest at an affordable price? Here are some of the best deals we’ve seen in years. Bullets.com just announced a massive price cut on its Bald Eagle brand front rests. Both the regular rests and the deluxe rests with flex-shaft windage adjustments are on sale. (These windage-adjustable rests are great for F-Class shooting.) Windage-adjustable rests start at just $215.00, while the conventional rests are marked down to $179.95 (less than half the original price!) Choose from Cast Iron or Aluminum bases, triangle or slingshot (wishbone) footprints. These are high-quality rests, with CNC-machined parts. They have been used successfully by many top F-Class and benchrest shooters.
Bullets.com tells us: “These rests were originally designed by a Benchrest shooter and refined by a member of the U.S F-Class Open Rifle Team. The rests have been thoroughly tested and proven to be reliable and capable of quick and accurate adjustments during string shooting.”
Bald Eagle Shooting Rests with Windage System ON SALE
BE1004 – Triangle, Aluminum, Reg. $425.00 — SALE $215.00
BE1005 – Slingshot, Aluminum, Reg. $425.00 — SALE $215.00
BE1006 – Slingshot, Cast Iron, Reg. $475.00 — SALE $235.00
Bald Eagle Shooting Rests without Windage System ON SALE
BE1128 – Triangle, Aluminum, Reg. $375.00 — SALE $179.95
BE1130 – Slingshot, Cast Iron, Reg. $399.95 — SALE $179.95
BE1129 – Slingshot, Aluminum, Reg. $375.00 — SALE $179.95
Along with offering super deals on front rests, Bullets.com has also slashed prices on its front and rear sand bags. Front Bags are marked dow to $27.50, while Rear Bags are on sale from $52.50 – $64.50. Large-diameter F-Class rest feet are also on sale currently. Get more details at Bullets.com.
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Well, yes, that headline is a come-on. But there’s truth in the promise. The “miracle device” to which we refer is a simple wind indicator aka “windflag”. Remarkably, many shooters who spend $3000.00 or more on a precision rifle never bother to set up windflags, or even simple wood stakes with some ribbon to show the wind. Whether you’re a competitive shooter, a varminter, or someone who just likes to punch small groups, you should always take a set of windflags (or some kind of wind indicators) when you head to the range or the prairie dog fields. And yes, if you pay attention to your windflags, you can easily cut your group sizes in half. Here’s proof…
Miss a 5 mph Shift and Double Your Group Size
The table below records the effect of a 5 mph crosswind at 100, 200, and 300 yards. You may be thinking, “well, I’d never miss a 5 mph let-off.” Consider this — if a gentle 2.5 mph breeze switches from 3 o’clock (R to L) to 9 o’clock (L to R), you’ve just missed a 5 mph net change. What will that do to your group? Look at the table to find out.
Values from Point Blank Ballistics software for 500′ elevation and 70° temperature.
Imagine you have a 6mm rifle that shoots half-MOA consistently in no-wind conditions. What happens if you miss a 5 mph shift (the equivalent of a full reversal of a 2.5 mph crosswind)? Well, if you’re shooting a 68gr flatbase bullet, your shot is going to move about 0.49″ at 100 yards, nearly doubling your group size. With a 105gr VLD, the bullet moves 0.28″ … not as much to be sure, but still enough to ruin a nice small group. What about an AR15, shooting 55-grainers at 3300 fps? Well, if you miss that same 5 mph shift, your low-BC bullet moves 0.68″. That pushes a half-inch group well past an inch. If you had a half-MOA capable AR, now it’s shooting worse than 1 MOA. And, as you might expect, the wind effects at 200 and 300 yards are even more dramatic. If you miss a 5 mph, full-value wind change, your 300-yard group could easily expand by 2.5″ or more.
Forest of Windflags at World Benchrest Championships in France in 2011
If you’ve already invested in an accurate rifle with a good barrel, you are “throwing away” accuracy if you shoot without wind flags. You can spend a ton of money on fancy shooting accessories (such as expensive front rests and spotting scopes) but, dollar for dollar, nothing will potentially improve your shooting as much as a good set of windflags, used religiously.
The web-based JBM Ballistics Program is one of the most sophisticated and accurate ballistics calculators available — and it’s free. The latest version of the JBM Trajectory Calculator includes field-test-derived actual G7 BCs, as well as bullet drag data from Lapua’s Doppler radar testing. You can also change weather variables, and generate come-up tables for distances out to 3000 yards.
Whenever we have web access, the JBM program is our “go-to” resource for dependable ballistics calculations. In our experience, with most bullets, if you input all the correct variables for the JBM program, it should get you within 1/2 moa (2 clicks), at 600 yards.
New URLs for JBM Ballistics Calculators
With the release of the latest version of the JBM program, some URLs for the calculations pages have changed. You may want to update your bookmarks with the following web addresses:
Here’s something that can save you lots of time and aggravation on a varminting trip. This little $110 gizmo is great for varmint hunters and any one who needs to make a quick shot in shifty wind conditions. Instead of the traditional 1/4-MOA hash marks, the Kenton windage turret features markers corresponding to the wind drift your ammo will encounter at various distances (with 10 mph full value winds). You just dial the distance.
Custom-Calibrated Windage Knobs
Kenton Industries’ Tuned Windage Compensator (TWC) has built-in windage marks for 10 mph cross-winds at 100-1000 yards. How do they do that? Well the knobs are calibrated either for specific calibers/loads, or they can make custom knobs using your observed field data. The knobs can compensate for various wind speeds (2-20 mph) and angles (15°- 90°), by applying some simple conversion ratios. As a general rule, with a “full-value”, i.e. 90°, crosswind, the wind drift will go up or down in direct proportion to the change in windspeed. That means, for example, a 10 mph crosswind will push the bullet twice as much sideways as a 5 mph crosswind.
Two versions of Kenton’s TWC knobs are offered. The $109.95 TWC #1 features calculated ballistics for standardized factory ammo for the caliber and barrel length you specify. The $109.95 TWC #2 feature customized windage settings based on bullet BC, environmental conditions, elevation, and ballistic information you provide.
Custom Elevation Knobs
Kenton also makes a $109.95 elevation-compensating TTC knob, that can be customized to your rifle. With this elevation turret, yardages are marked in 50-yard increments, and you can literally just “dial in your distance”. However, to work effectively the TTC knob must be tailored to a particular load (velocity and bullet). Moreover, actual bullet drop will differ with changes in altitude, temperature, and shooting angle — so it’s not as simple as it sounds, and you may need multiple knobs if you shoot a variety of loads. Kenton offers it TTC #1 model calibrated for standardized factory ammo. The TTC #2 is calibrated out to the maximum effective range of your cartridge based on bullet type, muzzle velocity, altitude, and temperature. Select the type of yardage format to be used. The #2 is recommended for wildcatters or for those who want to adjust to specific conditions. Lastly, a TTC #3 elevation knob is offered that relies on the purchaser’s actual recorded drop data from the field. The TTC #3 elevation knob will be calibrated based on the click-value or MOA you provide for each 50-yard increment.
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Over the past few weeks, we’ve had a chance to test and evaluate a one-piece shooting rest designed by Wally Brownlee of TargetShooting.com. The model 1000LP rest is solid, strong, nicely-machined, and versatile. We found it provides a very stable platform for every kind of rifle — from big magnums all the way down to benchrest air rifles.
The 1000LP rest is distinguished by its use of two (2) leather sandbags, a normal-sized one in the front and a compact mini-bag in the rear. Many other one-piece target rests use low-friction pads or Delrin contacts in the rear. The typical “lead-sled” rests use a solid cradle or V-block in the rear. The small, cube-like, rear mini-bag helps the model 1000LP out-perform typical, one-piece steady-rests. The small rear bag, which is supported by metal plates on three sides, does a great job stabilizing your gun. We also found that the combination of front and rear sandbags seems to provide good vibration damping — something that really helps with precision shooting.
When our designated trigger-puller Joe Friedrich tried the 1000LP with his tuned rimfire benchrest rifle, he immediately noticed that his gun shot amazingly well. Joe owns a variety of high-quality, one-piece rests, and the model 1000LP produced results equal to the best of them. Consider this, in Joe’s ARA unlimited discipline, a perfect score on a 25-bull target is a 2500, with “worst edge” scoring. “Perfect” 2500s are very rare. Only a handful are shot each year in ARA competition. Now get this, Joe managed to shoot multiple 2500s in a row off this rest, and he did that shooting in a variety of conditions (with different lots of ammo) over a 24-hour period. Joe was amazed that this rest, which was not designed for rimfire benchrest competition, could perform so well.
The model 1000LP has many features which contribute to the rest’s fine performance. First, as noted above, the small, 3-way-braced rear bag really seems to work, as long as it fits your stock well. Second, the windage control (which can be switched from left side to right side), is extremely precise and positive — it has zero slop. Third, the 1000LP has a relatively low-mass center bridge connecting the higher-mass front and rear sections. We think this barbell-type design, combined with the integral hand-rest, helps quell vibrations. Finally, the rear height control lets you make fine elevation adjustments without altering the gun’s position on the front bag.
The 1000LP Works Well for Many Purposes
While we were enthusiastic about the 1000LP’s performance with a rimfire benchrest rifle, we want to stress that this rest was not optimized for smallbore shooting. In fact the 1000LP was designed primarily to provide a stable platform for centerfire rifles. It works great for sighting in your hunting rifle, and it is a fine choice for varminters shooting off a field bench. Though not as fast to adjust as a joystick rest, the 1000LP is no slouch. The rear elevation knob is very quick and easy to employ, while the windage adjustment provides precise horizontal tracking with no vertical or diagonal drift. And because the front support is connected rigidly to the rear section, your front and rear bag always stay in perfect alignment, shot after shot. In the video below you can see Wally Brownlee shooting a 22-250 varmint rifle off his 1000LP rest. Note how well the gun tracks, and how little torque and hop there are, even with a narrow sporter-style stock. (Of course, the installed suppressor does reduce some recoil.)
1000LP Breaks Down into Sections for Transport
The TargetShooting.com model 1000LP easily breaks down into two or three sections. This makes it is easier to pack up and transport than most one-piece rests. The 1000LP also allows easy exchange of front bag assemblies so you can quickly switch from a 3″-wide bag to a narrow front bag for thinner, hunter-style fore-ends. A variety of accessories are available for the model 1000LP, including extra quick-release front bag units ($125.00), large-diameter machined discs for the feet (for added stability), and a dual-rail, front fore-end stop ($89.95).
Model 1000LP Starts at $699.95
Are there downsides to the model 1000LP? Well at $699.95 for the base unit, the 1000LP is far more expensive than a typical Lead Sled-type one-piece rest sold for hunters. However, that’s like comparing a Mercedes with a Yugo. The 1000LP is far more sophisticated than a Lead Sled. Plus, as Joe demonstrated, the model 1000LP can do double-duty as a true competition rest. Don’t even think about using a primitive $130.00 Lead Sled in ARA benchrest competition.
We also found that peak performance demands careful sandbag packing and a good fit of the rear bag to your particular stock. Someone who shoots multiple rifles may want to purchase more than one rear mini-bag so that the rear bag-to-stock fit is optimal. Joe found that bag-to-stock matching was important if you want to shoot ultra-small groups off this rest.
If you are interested in the model 1000LP one-piece rest, visit www.TargetShooting.com or call Wally Brownlee at (800) 611-2164, or +1 605-868-2164 (int’l).
Disclosure: TargetShooting.com provided a “loaner” 1000LP (with accessories) for testing, but Joe Friedrich then purchased the rest at a slight discount off retail.
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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 (8-Time Nat’l High Power Champion), David Tubb (11-time Nat’l High Power Champion), and John Whidden (2-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”. After recording the interviews, both Jason and I stood there in stunned silence…with jaws dropped. 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, Lou Gehrig, and Ted Williams in the same room, and have them each reveal their hitting secrets.” Watch the videos and soak up the wisdom of some truly legendary shooters….
By the way, the above clips are only part of longer interviews with Carl, David, and John. Stay tuned for other videos where these three champions talk about specific skills and techniques they’ve developed for the high power and long-range prone game.
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We saw an interesting gizmo on Peter White’s front rest at the recent California Long-Range Championship. Peter, who won the F-Class division, has fitted a remote drive system that allows him to adjust his Sinclair windage top without moving from his shooting position.
The windage control cable (actually a McMaster-Carr flexible drive shaft) attaches to the right side of the windage top in place of the regular adjustment knob. It then circles back to the shooter, and is clamped at the end of the pedestal leg (near the vertical adjustment speed screw). A large, knurled knob is attached to the end of the flexible drive.
With this set-up, Peter can adjust windage easily with his left hand, while keeping his right (trigger) hand in place on the rifle. In addition, he can fine-tune his vertical using the rotary knob (speed screw) on the threaded shaft for the rear-most rest “foot”. The flex-drive adjustment system places his windage control right next to his elevation fine-tune control, so both windage and elevation controls can be manipulated with the “free hand” from the shooting position.
Peter fabricated this system himself from less than $60 worth of parts. All you need is a McMaster Carr flexible drive shaft ($50-$60), an adjustment knob at the shooter’s end, and a small bracket to hold the adjustment knob securely.
Many F-Class shooters have fabricated a similar remote windage control system. If you have basic mechanical skills, you can build your own system in a couple hours (with the correct parts). Or, Leroy Johnson of Johnson’s Precision Gunsmithing, jpgrifles [at] yahoo.com, can build you a working system, if you send in your windage top. Leroy explains that “the various windage tops all have slightly different configurations, so the price depends on how much special work is required.”
Peter’s Parts List and Tips
Peter White offers some advice on building a remote windage control: “The parts were obtained from McMaster-Carr, www.mcmaster.com. The flexible drive shafts come in various lengths and diameters. When using the smallest diameters in this application the bend radius is critical as the cable wants to kink in one direction of operation. The tape you see on my rig covers a couple of stiffener rods. I have seen others using a longer cable with a larger bend radius with no need of a stiffener. Others have employed jacketed cables that have a much higher torque rating (but also much higher cost).”
Products Needed (Total = $49.31)
Part Number
Description
Price
3127K22
Panel-Mount Flexible Drive Shaft, 18″ Overall Length, 0.130″ Shaft OD
Here’s something that can save you lots of time and aggravation on a varminting trip. This little $90 gizmo is great for varmint hunters and any one who needs to make a quick shot in shifty wind conditions. Instead of the traditional 1/4-MOA hash marks, the Kenton windage turret features markers corresponding to the wind drift your rifle will encounter at various distances.
Custom-Calibrated Windage Knobs
Kenton Industries’ Tuned Windage Compensator (TWC) has built-in windage marks for 10 mph cross-winds at 100-1000 yards. How do they do that? Well the knobs are calibrated either for specific calibers/loads, or they can make custom knobs using your observed field data. The knobs can compensate for various wind speeds (2-20 mph) and angles (15°- 90°), by applying some simple conversion ratios. As a general rule, with a “full-value”, i.e. 90°, crosswind, the wind drift will go up or down in direct proportion to the change in windspeed. That means, for example, a 10 mph crosswind will push the bullet twice as much sideways as a 5 mph crosswind.
Two versions of Kenton’s TWC knobs are offered. The $89.95 TWC #1 features calculated ballistics for standardized factory ammo for the caliber and barrel length you specify. The $89.95 TWC #2 feature customized windage settings based on bullet BC, environmental conditions, elevation, and ballistic information you provide.
Custom Elevation Knobs
Kenton also makes an $79.95 elevation-compensating TTC knob, that can be customized to your rifle. With this elevation turret, yardages are marked in 50-yard increments, and you can literally just “dial in your distance”. However, to work effectively the TTC knob must be tailored to a particular load (velocity and bullet). Moreover, actual bullet drop will differ with changes in altitude, temperature, and shooting angle — so it’s not as simple as it sounds, and you may need multiple knobs if you shoot a variety of loads. Kenton offers it TTC #1 model calibrated for standardized factory ammo. The TTC #2 is calibrated out to the maximum effective range of your cartridge based on bullet type, muzzle velocity, altitude, and temperature. Select the type of yardage format to be used. The #2 is recommended for wildcatters or for those who want to adjust to specific conditions. Lastly, a TTC #3 elevation knob is offered that relies on the purchaser’s actual recorded drop data from the field. The TTC #3 elevation knob will be calibrated based on the click-value or MOA you provide for each 50-yard increment.
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Three-gun match competitor Zak Smith employs a simple, handy means to store his elevation and wind dift data — a laminated data card. To make one, first generate a come-up table, using one of the free online ballistics programs such as JBM Ballistics. You can also put the information in an Excel spreadsheet or MS Word table and print it out. You want to keep it pretty small.
Below is a sample of a data card. For each distance, the card includes drop in inches, drop in MOA, drop in mils. It also shows drift for a 10-mph cross wind, expressed three ways–inches, MOA, and mils. Zak explained that “to save space… I printed data every 50 yards. For an actual data-card, I recommend printing data every 20 or 25 yards.” But Zak also advised that you’ll want to customize the card format to keep things simple: “The sample card has multiple sets of data to be more universal. But if you make your own data card, you can reduce the chance of a mistake by keeping it simple. Because I use scopes with MILS, my own card (bottom photo) just has three items: range, wind, drop in MILS only.”
Once you have the card you can fold it in half and then have it laminated at a local office store or Kinko’s. You can keep this in your pocket, tape it to your stock, or tie the laminated card to your rifle. If you regularly shoot at both low and high elevations, you may want to create multiple cards (since your ballistics change with altitude). To learn more about ballistic tables and data cards, check out the excellent “Practical Long-Range Rifle Shooting–Part 1″ article on Zak’s website. This article offers many other insights as well–including valuable tips on caliber and rifle selection.
Another option is to place your ballistics card on the back of the front flip-up scope cover. This set-up is used by Forum member Greg C. (aka “Rem40X”). With your ‘come-up’ table on the flip-up cover you can check your windage and elevation easily without having to move up off the rifle and roll the gun over to look at the side of the stock. Greg tells us: “Placing my trajectory table on the front scope cover has worked well for me for a couple of years and thought I’d share. It’s in plain view and not under my armpit. And the table is far enough away that my aging eyes can read it easily. To apply, just use clear tape on the front objective cover.”
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Well, yes, that headline is a come-on. But there’s truth in the promise. The “miracle device” to which we refer is a simple wind indicator aka “windflag”. Remarkably, many shooters who spend $3000.00 or more on a precision rifle never bother to set up windflags, or even simple wood stakes with some ribbon to show the wind. Whether you’re a competitive shooter, a varminter, or someone who just likes to punch small groups, you should always take a set of windflags (or some kind of wind indicators) when you head to the range or the prairie dog fields. And yes, if you pay attention to your windflags, you can easily cut your group sizes in half. Here’s proof…
The web-based 
Here’s something that can save you lots of time and aggravation on a varminting trip. This little $110 gizmo is great for varmint hunters and any one who needs to make a quick shot in shifty wind conditions. Instead of the traditional 1/4-MOA hash marks, the Kenton windage turret features markers corresponding to the wind drift your ammo will encounter at various distances (with 10 mph full value winds). You just dial the distance.
The model 1000LP has many features which contribute to the rest’s fine performance. First, as noted above, the small, 3-way-braced rear bag really seems to work, as long as it fits your stock well. Second, the windage control (which can be switched from left side to right side), is extremely precise and positive — it has zero slop. Third, the 1000LP has a relatively low-mass center bridge connecting the higher-mass front and rear sections. We think this barbell-type design, combined with the integral hand-rest, helps quell vibrations. Finally, the rear height control lets you make fine elevation adjustments without altering the gun’s position on the front bag.
We also found that peak performance demands careful sandbag packing and a good fit of the rear bag to your particular stock. Someone who shoots multiple rifles may want to purchase more than one rear mini-bag so that the rear bag-to-stock fit is optimal. Joe found that bag-to-stock matching was important if you want to shoot ultra-small groups off this rest.
With this set-up, Peter can adjust windage easily with his left hand, while keeping his right (trigger) hand in place on the rifle. In addition, he can fine-tune his vertical using the rotary knob (speed screw) on the threaded shaft for the rear-most rest “foot”. The flex-drive adjustment system places his windage control right next to his elevation fine-tune control, so both windage and elevation controls can be manipulated with the “free hand” from the shooting position.
