Do you like scary movies? This video will send chills up and down your spine. But it’s not about Space Aliens, or slime monsters — it’s about two-legged creatures that appear out of nowhere… while you’re shooting. Watch this video carefully. Something happens at 0.38″ that will make your heart race. Warning: Adult language — Not suitable for playback at work.
Why You Must Always, Always Be Careful When Shooting on Public Lands…
LESSON Learned: Always be aware of your backstop and beyond. If there is any possibility of someone venturing into the “danger zone”, mark off the target area, and designate a person to watch the area around the target. That designated spotter should instantly call a halt to shooting if any person or vehicle appears. It is also a good idea to place warning signs, but don’t count on these to be headed.
This video was filmed on BLM land out in the Nevada desert. In such public areas, one must be very careful about shooting. There may be hikers, bikers, explorers, and horse-riders nearby. An offroad motorcyclist might be moving at 65 miles an hour. At that speed he’ll cover 32 yards in just one second! With that possibility, you really have to be ultra-careful. To be forewarned of potential risks, you need to watch way out to the left and right, not just focus on the backstop and the bullet’s flight path.
The shooting area shown above is located on BLM land. All BLM rules and regulations apply. Remember it is everyone’s desert so always think “safety first”. The video-maker, JFComfort (aka “Joe”), explains: “We do the majority of our shooting on BLM land surrounding the Las Vegas Valley. We have found shooting in small groups in the desert works well for us. We have spent a lot of time out there in the past. I advise you not to shoot alone and be very mindful of off-road enthusiasts. Guys on quads, dirt bikes, and Rhinos seem to pop out of nowhere. Also keep a close eye out for other shooters, not everyone is safe, respectful and courteous.”
This was supposed to be the “easy day” at the Berger Southwest Nationals (SWN), with targets at the “shorter” distance of 600 yards. But the wind gods did not cooperate. The wind blew all day long, with significant velocity changes (from strong to very strong) and tricky angle changes. It was a challenge even for a National Champion. James Crofts, reigning F-TR National Champ, said today presented the toughest wind conditions he’s ever witnessed at Ben Avery: “Conditions were brutal, to say the least. At 600 yards I found the 7 Ring, so it wasn’t easy”. But James was up to the task, winning the F-TR division. Forum member Erik Cortina took top F-Open honors in this Wednesday mid-range match. But he agreed with Crofts that the blustery winds were very challenging — with the high velocities you had to watch the right flags to pick out the angle changes.
In the video below, James and Erik talk about the challenge of shooting in these kind of conditions, and they also talk about their choices in F-Class hardware (rests, bipods, scopes).
Check out the strong winds at Ben Avery:
Share the post "High Winds Challenge Shooters at Berger Southwest Nationals"
At the Berger Southwest Nationals we had a chance to meet with many friends, including past and current champions. Here are some of the interesting comments from some top F-Class and Sling Shooters.
James Crofts talks wind with Erik Cortina at the Berger SWN. At Wednesday’s 600-yard match, James topped the F-TR field while Eric won the F-Open Division.
James Crofts
“The thing that has helped my shooting the most this past year was not fretting so much about the ammo — getting out of the reloading room. I’m putting more focus on shooting the gun and calling the wind. What advice would I give other shooters? Buy high-quality gear and cry once. For example, the Nightforce competition scope — it’s a great scope and we do use the full 55 power at times.”
Erik Cortina
“I shot a .284 Shehane today with 180gr Scenars. I’m glad I had that BC working for me, even at 600 yards. Do 6mm Dashers have a place in F-Open? Not on a day like today. If I was able to hold a 10 with my .284, the Dasher guys were over in the nine ring. If I shot a 9, they might shoot an 8. When conditions are tough, you want the heavy bullet.”
Larry Bartholome
“What trends do I see in F-Open? Well, for 600 yards, maybe more guys will start using the Dasher, now that Norma Dasher brass will be available thanks to Shiraz. Personally, for mid-range I’m shooting a .284 Shehane with 180 Bergers. I’ll stick with my 7mm/270 WSM for 800 [and longer].”
John Whidden
“It’s good to see so many old friends here. But I can’t say Ben Avery has been friendly today. This certainly gives me a chance to practice my wind calling — that should come in handy later this year at the Fullbore world championships at Camp Perry. On the business front we’re expanding our range of cartridge dies. I know a lot of guys at this match are now using our dies. That makes me proud.”
Carl Bernosky
“What with the back surgery, I haven’t had a sling on in nearly two years. Today was tough — my rifle felt like a log. The Southwest Nationals is a great match mind you, but it’s all on the ground and I miss standing up… I like to shoot standing.”
Mid Tompkins
“Electronic targets, you want electronic targets? That would change the whole game. Sure I can see my own shot locations on a monitor, but what about the other guys’ shots? I learn a lot looking at where other shooters’ shots end up [displayed by the shot markers]. Take that away and things are completely different. Looking at shots from other shooters on the line is a big part of the game today.”
Share the post "Thoughts on Competitive Shooting — Top Guns Talk"
Editor’s comment: The new lens technology described here is a big deal. The “flexible” polymer lens is nothing short of revolutionary — there’s never been anything like it on a riflescope (though our own human eyes have flexible lenses). In the world of optics, this is as noteworthy a development as the touch-screen was for personal computing. Flexible, “adaptive” lenses can potentially be employed for a wide variety of products, from cameras to spotting scopes. Think about the benefits of “instantaneous zoom” for security cameras.
Sandia’s RAZAR Scope Features Flexible Lenses That Can Change Focal Length Instantly
Sandia National Laboratories has developed a truly game-changing piece of optical technology at the direct request of the Department of Defense: the RAZAR (Rapid Adaptive Zoom for Assault Rifles). Fundamentally different than every other riflescope ever made, the RAZAR represents a revolution in lens design and function. Until now, all riflescopes used a set of rigid, hard lenses (usually glass). The new RAZAR utilizes an advanced set of flexible polymer lenses that allow the user to toggle between high and low magnification with the press of a button. The RAZAR can literally zoom in and out in the blink of an eye (250 milliseconds).
The RAZAR works in conjunction with a tactical-style optic, such the Leupold HAMR (top photo). This tandem (two-part) sighting system combines the conventional scope’s eyepiece and illuminated reticle with the RAZAR’s ultra-fast zooming capability. Unlike traditional eyepiece (ocular) magnifiers, the RAZAR sits in front of the primary optic.
See RAZAR Demonstrated in Sandia Labs Video
Game-Changing Technology
The RAZAR’s instant, push-button zoom capability gives soldiers the ability to change field of view and magnification without re-positioning their grip on the rifle, unlike traditional variable-power riflescopes. This capability can be invaluable to a soldier in combat.
Michael Squire, a former SFC with Special Operations Research Support Element, said the ability to zoom between near and far targets within seconds, without taking his hand off the weapon, is “game-changing.” Squire added: “The difference that can make, especially with somebody shooting back, could mean life or death…”
The secret to the RAZAR’s high performance lies within the development of the advanced technologies within the scope. A hermetically sealed, flexible polymer lens core encapsulates a proprietary polymer liquid, and this core then works in tandem with glass lenses to form the basis of the optical design.
Rapid changes in magnification are accomplished via a piezoelectric motor that changes the curvature of the lenses, achieving the correct positioning within 250 milliseconds within an accuracy level of 100 nanometers. When zooming, these electronically-controlled actuators act much like the tiny muscles that allow the human eye to change focus from near to far. Human eyes have flexible lenses controlled with muscles*. The RAZAR has flexible lenses controlled by tiny electric motors.
It’s important to highlight the reliability that Sandia was able to build into the RAZAR. The system requires very little mechanical power to operate, and can undergo up to 10,000 zoom actuations on a single set of two standard AA batteries. The ultrasonic motor draws no power unless it’s being used to bend the soft lenses, which makes the RAZAR very reliable. If the batteries do go flat, the RAZAR remains fully usable — the system simply stays at the last magnification level until the batteries are replaced.
Sandia’s RAZAR design provides a large, clear viewing aperture, without sacrificing any of the optical quality found in traditional riflescopes. The RAZAR is also shock-proof, vibration-proof and capable of operating in a very wide temperature range.
The Future of “Instant Zoom” Adaptive Lenses
Sandia Labs is developing other specialty lenses in the near-infrared, short wave-infrared and mid-wave infrared spectrum, primarily for DOD use. However, Sandia has suggested that its flexible polymer-lens technology could be adapted for other imaging applications where rapid zoom is needed, such as binoculars, spotting scopes, and even security cameras. For more information, visit the Sandia Labs website.
*Changing the curvature of the human eye lens is carried out by the ciliary muscles surrounding the lens. They narrow the diameter of the ciliary body, relax the fibers of the suspensory ligament, and allow the lens to relax into a more convex shape. A more convex lens focuses divergent light rays onto the retina allowing for closer objects to be brought into focus.
About the Author
Kip Staton is a freelance gun writer based in North Texas, and loves to blog about news within the firearms industry and his perceptions on marksmanship. Kip is a content marketer, copywriter and digital strategist for an award-winning Dallas marketing agency. To read more by Kip, visit KipStaton.com.
Share the post "Revolutionary Flexible-Lens Optics Technology Zooms Instantly"
The Berger Southwest Nationals (SWN) kicked off Tuesday, February 10th, with an instructional clinic at the Ben Avery 1000-yard Range. This combined a lecture/Q&A session with live-fire training. Ballistics “Professor” Bryan Litz reports: “The clinic was a big hit as usual, with lots of competitor participation. There was a big crowd this year, as you can see.”
The clinic started with a class on Exterior Ballistics hosted by Bryan. This focused on why ballistics is important to competitive shooters, and how to balance ballistic performance objectives against real world constraints. Topics included bullet weight options for F-TR (155 to 215 grains), barrel/chamber considerations, plus the real-world trade-offs involved with heavy bullets (yes the BC may be better but recoil becomes an issue). Many of the questions related to content from Bryan’s recent books, and discussions in AccurateShooter.com’s Ballistics sub-Forum and Daily Bulletin.
Following the ballistics class, shooters made their way to the firing line for one-on-one instruction with experienced shooters in each discipline (sling, F-TR and F-Open). During this segment of the clinic, champion shooters worked directly with novice and intermediate shooters. Bryan said: “It was great to see the ‘top guns’ sharing their knowledge.”
Last but not least, Mid Tompkins directed a wind clinic with live fire demonstrations. Bryan reports: “Mid has a way of getting your attention. Personally, I thought his 2 MOA wind call that put the very first shot in the 5 inch X-ring at 1000 yards got everyone’s attention!” After the demonstrations, clinic “students” went to the firing line to put wind-clinic lessons into practice, and to verify their zeroes.
Mid Tompkins at the SWN Shooters’ Clinic
Here are some more images from the instructional clinic held last year at the 2014 SW Nationals.
Share the post "Berger SW Nationals — Tuesday Instructional Clinic"
The International Benchrest Shooters (IBS) just secured a great alliance with long-range shooters out West in Big Sky Country. The Montana NW 1000-Yard Benchrest Club (www.Montana1000yd.com) is now officially affiliated with the IBS. This is an exciting development. Many world records have been set at the Deep Creek Range near Missoula, Montana, “home base” for the Montana NW Club. Deep Creek enjoys some of the best conditions a long-range shooter could ask for. This is definitely the place to bring that “hummer” barrel if you want to shoot small.
Here is a report from Montana NW Club member Alex Wheeler:
“The decision was made this year to join the IBS and hopefully grow our matches. We have been affiliated with the Original Pennsylvania 1000-yard Benchrest Club (Williamsport, PA) for almost twenty years. Now our Montana-based shooting club enters a new era as an IBS-affiliated operation.
The Deep Creek range is a great place to shoot. Conditions are generally excellent, and the setting is beautiful. The firing line is a raised berm with covered concrete benches. We have full pits and a scoring shed to properly handle the targets. We typically start at 8:00 am to take full advantage of the calm conditions. Many visitors enjoy camping near the range during match weekends. Facilities include water, electric, and restrooms. There are also many hotels in the area.
The group that shoots here regularly are some of the most skilled and serious shooters in the country, but you could not ask for a friendlier group. They seem to always be thinking of ways to shoot smaller and better their equipment. We hope to see some new faces and see the IBS start to make more of a presence in the western states. See you at the first match in March!”
Share the post "Montana NW 1000-Yard Benchrest Club Joins IBS"
The AccurateShooter.com Shooters’ Forum hit another membership milestone. We’ve surpassed 27,000 registered members. Now we hope to reach 30,000 members in the next few months. If you have considered joining our Forum, but haven’t done so yet, there’s no better time than now. As a Forum member, you’ll be part of an active community of serious shooters. You can get valuable advice on shooting and reloading from top shooters such as National Champions Larry Bartholome, Sam Hall, and Derek Rodgers. As well, many top tool-makers and barrel-makers visit the Forum regularly, such as Dave Kiff (PT&G), Frank Green (Bartlein Barrels), and John Perkins (21st Century Shooting).
If you haven’t sampled our Forum yet, cruise over to Forum.AccurateShooter.com and check it out. You’ll find a wealth of information shared by thousands of knowledgeable members, including many National Champions and record-holders. The boards are tightly moderated to prevent the ego battles common to some other internet forums. Our Shooters’ Forum maintains a high “signal to noise ratio”, with courteous and respectful exchange of ideas. To join the Forum, simply click the “Register” link and follow the prompts. There is no fee to join.
FREE Classifieds for Forum Members
Along with our informational Forum areas, we offer FREE CLASSIFIEDS for all registered forum members. You’ll find some great values in the Classifieds, and we provide a feedback system for buyers and sellers. Published feedback helps you buy and sell with greater confidence.
Share the post "AccurateShooter Forum Tops 27,000 Members"
Gavin Gear tests .308 ammo with his DPMS LR-308B, AR10-type rifle.
Our friend Gavin Gear of UltimateReloader.com owns a DPMS LR-308B, an AR10-type semi-auto rifle. Gavin finds that his DPMS has a healthy appetite for ammunition. So, he set up his Hornady Lock-N-Load progressive press to produce .308 Win ammo. This video shows the process of press set-up and operation, complete with Hornady’s automated Case Feeder and Bullet Feeder. Employing elevated rotary hoppers, the case feed and bullet feed systems really speed up production. The automated feeders allow the operator to produce cartridges without ever touching case or bullet with his hands.
If you need large quantities of .308 Win ammo for 3-Gun matches or tactical games, and if you value your time, a progressive press may be a wise investment. The progressive can load a complete round with every cycle of the press handle. With Case Feeder and Bullet Feeder in place, the Hornady L-N-L can easily crank out a new .308 round every 3-4 seconds (watch video at 5:25). Conservatively speaking, that’s 15 rounds per minute sustained production (and some guys can go even faster).
Get updates from UltimateReloader.com via Gavin’s twitter feed: @UReloader. To learn more about the Hornady Lock-N-Load Progressive Press (with case/bullet feed options), and to see a list of the dies and accessories Gavin uses, click the link below:
In the hit Hollywood movie “The Patriot”, the hero Benjamin Martin (played by Mel Gibson), tells his sons: “Aim small, miss small”. That advice was given to help his sons survive encounters with the British redcoats, but the “aim small, miss small” mantra can benefit target shooters as well.
We have found that novice and intermediate shooters can often improve their accuracy simply by using targets with smaller, more precise aiming points. Inexperienced shooters can benefit by starting with a large-size aiming circle, and then progressing to smaller and smaller target dots. This lets the shooter increase the challenge as his gun-handling becomes more steady and his aim improves.
Here are two rimfire training targets with “big to small” target circles. Start with the largest circles, then move to the smaller ones in sequence. This systematic drill provides increasing challenge shot-by-shot. Novices often are quite surprised to see their accuracy improve as they move from bigger to smaller aiming points. That provides positive feedback — always a good thing.
Right Click and “Save as” to download printable PDF versions of these targets.
Share the post "“Aim Small, Miss Small” — Decreasing Dot-Size Training Targets"
Got a minute — one minute and six seconds to be precise? Then you should watch this excellent “trailer” video from the International Shooting Sports Federation (ISSF) TV channel. You’ll see virtually all the major Olympic/International shooting disciplines. Even if you’re not a skeet/trap shooter you’ll enjoy the clips of shotgun champions at the top of their game. And the footage of position rifle shooters reveals the intense concentration requied in that discipline. We really enjoyed this short clip. The MTV-style editing and soundtrack holds your attention, and the cameramen did a great job of capturing the exact moments when shooters took the winning shot. Enjoy.
Share the post "Great ISSF Video Shows Rifle, Pistol, Shotgun Sports"
The number of women target shooters, hunters, and gun owners has increased dramatically since the start of the new millennium. Consider this, women now comprise 19% of hunters. That’s an 85% increase since 2001. Women are also more important as a purchasing segment of the the shooting market. Women gun owners spend nearly $1300.00 per year on guns and shooting accessories, $870 of that on firearm purchases. That number has gun-makers paying attention — even if some of you guys spend more than that each year just on powder!
Jessie Duff, sponsored by Taurus and Weatherby
Women are definitely becoming a more important segment of the hunting/shooting world. This is a good thing. The larger the “fan base” for the shooting sports, the less political pressure there will be to close ranges and restrict the activities of target shooters and hunters.
Click either image to see a full-size “Girl Power” Infographic.
Share the post "Move Over Guys, the Ladies Are Coming…"
The Applied Ballistics team tested six (6) same-length/same-contour Bartlein barrels to observe how twist rate might affect muzzle velocity. This unique, multi-barrel test is featured in the book Modern Advancements in Long Range Shooting. That book includes many other fascinating field tests, including a comprehensive chronograph comparison.
Barrel Twist Rate vs. Velocity — What Tests Reveal by Bryan Litz
When considering barrel twist rates, it’s a common belief that faster twist rates will reduce muzzle velocity. The thinking is that the faster twist rate will resist forward motion of the bullet and slow it down. There are anecdotal accounts of this, such as when someone replaces a barrel of one brand/twist with a different brand and twist and observes a different muzzle velocity. But how do you know the twist rate is what affected muzzle velocity and not the barrel finish, or bore/groove dimensions? Did you use the same chronograph to measure velocity from both barrels? Do you really trust your chronograph?
Savage Test Rifle with Six Bartlein Barrels
Most shooters don’t have access to the equipment required to fully explore questions like this. These are exactly the kinds of things we examine in the book Modern Advancements in Long Range Shooting. In that book, we present experiments conducted in the Applied Ballistics lab. Some of those experiments took on a “Myth Buster” tone as we sought to confirm (or deny) popular pre-conceptions. For example, here’s how we approached the question of barrel twist and muzzle velocity.
Six .308 Win Barrels from Bartlein — All Shot from the Same Rifle
We acquired six (6) barrels from the same manufacturer (Bartlein), all the same length and contour, and all chambered with the same reamer (SAAMI spec .308 Winchester). All these barrels were fitted to the same Savage Precision Target action, and fired from the same stock, and bench set-up. Common ammo was fired from all six barrels having different twist rates and rifling configurations. In this way, we’re truly able to compare what effect the actual twist rate has on muzzle velocity with a reasonable degree of confidence.
Prior to live fire testing, we explored the theoretical basis of the project, doing the physics. In this case, an energy balance is presented which predicts how much velocity you should expect to lose for a bullet that’s got a little more rotational energy from the faster twist. In the case of the .30 caliber 175 grain bullets, the math predicts a loss of 1.25 fps per inch-unit of barrel twist (e.g. a 1:8″ twist is predicted to be 1.25 fps slower than a 1:9″ twist).
Above, data shows relationship between Twist Rate and Muzzle Velocity (MV) for various barrel twist rates and rifling types. From fast to slow, the three 1:10″ twist barrels are: 5R (canted land), 5 Groove, 5 Groove left-hand twist.
We proceeded with the testing in all 6 barrels from 1:8” to 1:12”. After all the smoke cleared, we found that muzzle velocity correlates to twist rate at the rate of approximately 1.33 fps per inch of twist. In other words, your velocity is reduced by about 5 fps if you go from a 1:12” twist to a 1:8” twist. [Editor: That’s a surprising number — much less than most folks would predict.] In this case the math prediction was pretty close, and we have to remember that there’s always uncertainty in the live fire results. Uncertainty is always considered in terms of what conclusions the results can actually support with confidence.
This is just a brief synopsis of a single test case. The coverage of twist rates in Modern Advancements in Long-Range Shooting is more detailed, with multiple live fire tests. Results are extrapolated for other calibers and bullet weights. Needless to say, the question of “how twist rate affects muzzle velocity” is fully answered.
Other chapters in the book’s twist rate section include: · Stability and Drag – Supersonic
· Stability and Drag – Transonic
· Spin Rate Decay
· Effect of Twist rate on Precision
Other sections of the book include: Modern Rifles, Scopes, and Bullets as well as Advancements in Predictive Modeling. This book is sold through the Applied Ballistics online store. Modern Advancements in Long Range Shooting is also available in eBook format in the Amazon Kindle store.
Share the post "Does Barrel Twist Rate Affect Muzzle Velocity? (Litz Test)"
In the hit Hollywood movie “The Patriot”, the hero Benjamin Martin (played by Mel Gibson), tells his sons: “Aim small, miss small”. That advice was given to help his sons survive encounters with the British redcoats, but the “aim small, miss small” mantra can benefit target shooters as well.
