December 11th, 2019

Holiday Book Buyers Guide — Ten Great Gun Books

Gun firearms books christmas gifts reader guide book resource paperback hardcover

Christmas is coming soon. Books have always been popular holiday gifts. If you haven’t completed your holiday shopping, here are some recommended titles that should please the serious shooters and firearms enthusiasts on your shopping list. For shooting clubs, books also make great end-of-season member awards. Most of us would rather have a useful book than one more piece of wood to toss in a box in the closet. Check out these rwn titles — for yourself or your shooting buddies.

Here Are TEN BOOKS Recommended for Serious Shooters:

Modern Advancements in LR Shooting, Vol. II
by Bryan Litz, $27.99 (Kindle), $44.54 (Hardcover)

If you’re a serious long-range shooter, consider adding this book to your library. Relying on extensive ballistics testing, Modern Advancements Volume II is a great successor to Volume I that contains some fascinating research results. UK gun writer Laurie Holland notes: “Volume II of the Modern Advancements series is as fascinating as Volume I and if anything even more valuable given a series of ‘mythbusters’ tests including: case fill-ratio, primer flash-hole uniforming, neck tension, annealing, and much more. The work also addresses that perennial discussion of a bullet ‘going to sleep’ and shooting smaller groups (in MOA) at longer distances than 100 yards.” The amount of testing done for this Volume II work, with a staggering amount of rounds sent downrange, makes this book unique among shooting resources. There is a ton of “hard science” in this book — not just opinions.

Nancy Tompkins Long Range book Prone and Long Range Rifle Shooting
by Nancy Tompkins, $45.00, (Hardcover, 2d Edition).

Nancy Tompkins is one of the greatest long-range shooters in American history. She has won five National Long-range Championships. Tompkins’ treatise is a must-read for serious Palma, F-Class, and High Power shooters. The revised Second edition includes F-Class equipment and techniques, and newly updated information. Color pictures. Topics include Mental & Physical training, Reading Wind & Mirage Shooting Fundamentals, International Competition, and Loading for Long Range. Nancy Tompkins is a 4-time winner of the National Long Range Championships, and has won countless other major events. Nancy has been on six Palma Teams (as both a shooter and a coach).

Tony Boyer Book rifle accuracy benchrest Long Range Shooting Handbook
by Ryan Cleckner, $2.99 (Kindle), $20.04 (Softcover),

Ryan Cleckner is noted for his ability to explain complex topics in an easy-to-comprehend manner. Now Cleckner has authored a book, the Long Range Shooting Handbook, which expands on the topics covered in Cleckner’s popular NSSF video series. The Long Range Shooting Handbook is divided into three main categories: What It Is/How It Works, Fundamentals, and How to Use It. “What It Is/How It Works” covers equipment, terminology, and basic principles. “Fundamentals” covers the theory of long range shooting. “How to Use It” gives practical advice on implementing what you’ve learned, so you can progress as a skilled, long range shooter. You can view Sample Chapters from Ryan’s Book on Amazon.com.

Top-Grade Ammo
by Glen Zediker, $32.99 (Softcover — Sale at Midsouth)

Glen Zediker’s Top-Grade Ammo, is a great resource for all hand-loaders — beginners through advanced. Released in 2016, this 314-page guide covers every aspect of the reloading process — component sorting, priming, sizing, bullet seating and more. With 430 photos, Top-Grade Ammo is a richly-illustrated, step-by-step guide to producing high-quality handloads. Unlike many reloading books, Top-Grade Ammo is current and up-to-date, so it covers modern practices and the latest precision reloading tools. While Zediker focuses on producing match-grade ammo for competition, this book will also help novice reloaders on a budget. This book features a special “lay-flat” binding so it’s easy to use as a benchtop reference. To view Chapter List and sample pages visit ZedikerPublishing.com.

Practical Shooter’s Guide
by Marcus Blanchard, $9.99 (Kindle), $19.99 (Softcover)

Thinking of getting started in the Practical/Tactical shooting game? Looking for ways to be more stable when shooting from unconventional positions? Then you may want to read Marcus Blanchard’s Practical Shooter’s Guide (A How-To Approach for Unconventional Firing Positions and Training). Unlike almost every “how to shoot” book on the market, Blanchard’s work focuses on the shooting skills and positions you need to succeed in PRS matches and similar tactical competitions. Blanchard provides clear advice on shooting from barricades, from roof-tops, from steep angles. Blanchard says you need to train for these types of challenges: “I believe the largest factor in the improvement of the average shooter isn’t necessarily the gear; it’s the way the shooter approaches obstacles and how they properly train for them.”

Tony Boyer Book rifle accuracy benchrest The Book of Rifle Accuracy
by Tony Boyer, $42.50 (Hardcover).

Tony Boyer, the most successful shooter in the history of short-range benchrest competition, shares many of his match-winning tips in this 323-page book. The book covers all aspect of the benchrest discipline: loading, windflags, rest set-up, addressing the rifle, and match strategies. This is a high-quality publication, filled with valuable insights. Every serious benchrest shooter should read Tony’s book. Boyer has dominated registered benchrest in a fashion that will never be duplicated, having amassed 142 U.S. Benchrest Hall of Fame points. The next closest shooter, Allie Euber, has 47 Hall of Fame points. This handsome, full-color book is 323 pages long, with color photos or color illustrations on nearly every page.

Miller Cunningham Wind Book The Wind Book for Rifle Shooters
by Linda Miller & Keith Cunningham, $14.99 (Kindle), $20.08 (Hardback).

Many of our Forum members have recommended The Wind Book for Rifle Shooters by Linda Miller and Keith Cunningham. This 146-page book, first published in 2007, is a very informative resource. But you don’t have to take our word for it. If you click this link, you can read book excerpts on Amazon.com. This lets you preview the first few chapters, and see some illustrations. Other books cover wind reading in a broader discussion of ballistics or long-range shooting. But the Miller & Cunningham book is ALL about wind reading from cover to cover, and that is its strength. The book focuses on real world skills that can help you accurately gauge wind angle, wind velocity, and wind cycles. NOTE: The new Hardback Edition will release in February 2019, but you can pre-order now.

David Tubb High Power Rifle The Rifle Shooter
by G. David Tubb, $34.95 (Softcover)

This book by 11-time National High Power Champion David Tubb focuses on position shooting and High Power disciplines. Section One covers fundamentals: position points, natural point of aim, breathing, triggering mechanics and follow-through, sling selection and use, getting started, getting better, avoiding obstacles. Section Two covers mechanics of offhand, sitting, and prone positions. Section Three covers shooting skills, including wind reading and mental preparation. Section Four covers the technical side of shooting, with extensive discussions of rifle design, load development, reloading barrel maintenance, and rifle fitting. We consider this book a “must-read” for any sling shooter, and there is plenty of good advice for F-Class shooters too.

Cartridges of World 15th Edition Cartridges of the World (16th Edition)
by W. Todd Woddard, $14.99 (Kindle), $33.49 (Softcover)

Cartridges of the World (16th Edition, 2019), belongs in every serious gun guy’s library. This massive 680-page reference contains illustrations and basic load data for over 1500 cartridges. If you load for a wide variety of cartridges, or are a cartridge collector, this book is a “must-have” resource. The latest edition includes 50 new cartridges and boasts 1500+ photos. The 16th Edition of Cartridges of the World includes cartridge specs, plus tech articles on Cartridge identification, SAAMI guidelines, wildcatting, and new cartridge design trends. In scope and level of detail, Cartridges of the World is the most complete cartridge reference guide in print. Cartridges of the World now includes a full-color section with feature articles.

Bullseye Midnd Raymond Prior Creedmoor Sports Bullseye Mind
(Mental Toughness for Sport Shooting)
by Dr. Raymond Prior, $17.95 (Softcover).

Having a Bullseye Mind means thinking in ways that create confidence and consistency, even under pressure. A “must-read” for competitive shooters, Bullseye Mind is a mental training book written specifically for the shooting sports. The book is well-organized, with handy highlighted lists and key “talking points”. Each chapter concludes with examples from a world-class shooters such as: Matt Emmons, 2004 Olympic Gold Medalist; Vincent Hancock, 2-time Olympic Gold Medalist; Jamie Corkish, 2012 Olympic Gold Medalist; Petra Zublasing, 2014 World Champion/ISSF Shooter of the Year; and Nicco Campriani, 2012 Olympic Gold Medalist, 2010 World Champion. This book has earned rave reviews from competitive shooters who found it really helped their “Mental Game”. One recent purchaser states: “This book is as though you had a coach in your back pocket…”

Permalink Competition, News, Shooting Skills No Comments »
December 10th, 2019

How Changes in Cartridge OAL Can Alter Pressure and Velocity

Berger Bullets COAL length cartridge

Figure 1. When the bullet is seated farther out of the case, there is more volume available for powder. This enables the cartridge to generate higher muzzle velocity with the same pressure.

Berger Bullets COAL length cartridgeEffects Of Cartridge Over All Length (COAL) And Cartridge Base To Ogive (CBTO) – Part 1
by Bryan Litz for Berger Bullets.
Many shooters are not aware of the dramatic effects that bullet seating depth can have on the pressure and velocity generated by a rifle cartridge. Cartridge Overall Length (COAL) is also a variable that can be used to fine-tune accuracy. It’s also an important consideration for rifles that need to feed rounds through a magazine. In this article, we’ll explore the various effects of COAL, and what choices a shooter can make to maximize the effectiveness of their hand loads.

Sporting Arms and Ammunition Manufacturers’ Institute (SAAMI)
Most loading manuals (including the Berger Manual), present loading data according to SAAMI (Sporting Arms and Ammunition Manufacturers’ Institute) standards. SAAMI provides max pressure, COAL and many other specifications for commercial cartridges so that rifle makers, ammo makers, and hand loaders can standardize their products so they all work together. As we’ll see later in this article, these SAAMI standards are in many cases outdated and can dramatically restrict the performance potential of a cartridge.

Bullet seating depth is an important variable in the accuracy equation. In many cases, the SAAMI-specified COAL is shorter than what a hand loader wants to load their rounds to for accuracy purposes. In the case where a hand loader seats the bullets longer than SAAMI specified COAL, there are some internal ballistic effects that take place which are important to understand.

Effects of Seating Depth / COAL on Pressure and Velocity
The primary effect of loading a cartridge long is that it leaves more internal volume inside the cartridge. This extra internal volume has a well known effect; for a given powder charge, there will be less pressure and less velocity produced because of the extra empty space. Another way to look at this is you have to use more powder to achieve the same pressure and velocity when the bullet is seated out long. In fact, the extra powder you can add to a cartridge with the bullet seated long will allow you to achieve greater velocity at the same pressure than a cartridge with a bullet seated short.

When you think about it, it makes good sense. After all, when you seat the bullet out longer and leave more internal case volume for powder, you’re effectively making the cartridge into a bigger cartridge by increasing the size of the combustion chamber. Figure 1 illustrates the extra volume that’s available for powder when the bullet is seated out long.

Before concluding that it’s a good idea to start seating your bullets longer than SAAMI spec length, there are a few things to consider.

Geometry of a Chamber Throat
The chamber in a rifle will have a certain throat length which will dictate how long a bullet can be loaded. The throat is the forward portion of the chamber that has no rifling. The portion of the bullet’s bearing surface that projects out of the case occupies the throat (see Figure 2).

Berger Bullets COAL length cartridge

The length of the throat determines how much of the bullet can stick out of the case. When a cartridge is chambered and the bullet encounters the beginning of the rifling, known as the lands, it’s met with hard resistance. This COAL marks the maximum length that a bullet can be seated. When a bullet is seated out to contact the lands, its initial forward motion during ignition is immediately resisted by an engraving force.

Seating a bullet against the lands causes pressures to be elevated noticeably higher than if the bullet were seated just a few thousandths of an inch off the lands.

A very common practice in precision reloading is to establish the COAL for a bullet that’s seated to touch the lands. This is a reference length that the hand loader works from when searching for the optimal seating depth for precision. Many times, the best seating depth is with the bullet touching or very near the lands. However, in some rifles, the best seating depth might be 0.100″ or more off the lands. This is simply a variable the hand loader uses to tune the precision of a rifle.

CLICK HERE to Read Full Article with More Info

Article sourced by EdLongrange. We welcome tips from readers.
Permalink Bullets, Brass, Ammo, Reloading 2 Comments »
December 1st, 2019

Common Misconceptions about Twist Rate and Stabilization

FirearmsID.com barrel rifling diagram

Understanding Twist: Bullet Stabilization

by Sierra Bullets Ballistic Technician Paul Box for Sierra Bullets Blog.

Based on the questions we get on a daily basis on our 800 (Customer Support) line, twist is one of the most misunderstood subjects in the gun field. So let’s look deeper into this mystery and get a better understanding of what twist really means.

When you see the term 1:14″ (1-14) or 1:9″ twist, just exactly what does this mean? A rifle having a 1:14″ twist means the bullet will rotate one complete revolution every fourteen inches of the barrel. Naturally a 1:9″ turns one time every nine inches that it travels down the barrel. Now, here’s something that some people have trouble with. I’ve had calls from shooters thinking that a 1:14″ twist was faster than a 1:9″ because the number was higher with the 1:14″. The easiest way to remember this is the higher the number, the slower the twist rate is.

Now, the biggest misconception is that if a shooter has a .223 with a 1:8″ twist, his rifle won’t stabilize a 55gr bullet or anything lighter. So let’s look at what is required. The longer a bullet is for its diameter, the faster the twist has to be to stabilize it. In the case of the .223 with a 1:8″ twist, this was designed to stabilize 80gr bullets in this diameter. In truth the opposite is true. A 1:8″ will spin a 55gr faster than what is required in order to stabilize that length of bullet. If you have a bullet with good concentricity in its jacket, over-spinning it will not [normally] hurt its accuracy potential. [Editor’s Note: In addition, the faster twist rate will not, normally, decrease velocity significantly. That’s been confirmed by testing done by Bryan Litz’s Applied Ballistics Labs. There may be some minor speed loss.]

FirearmsID.com barrel rifling diagram
Many barrel-makers mark the twist rate and bore dimensions on their barrel blanks.

Think of it like tires on your truck. If you have a new set of tires put on your truck, and they balance them proper at the tire shop, you can drive down a street in town at 35 MPH and they spin perfect. You can get out on the highway and drive 65 MPH and they still spin perfect. A bullet acts the same way.

Once I loaded some 35gr HP bullets in a 22-250 Ackley with a 1:8″ twist. After putting three shots down range, the average velocity was 4584 FPS with an RPM level of 412,560. The group measured .750″ at 100 yards. This is a clear example that it is hard to over-stabilize a good bullet.

Twist-rate illustration by Erik Dahlberg courtesy FireArmsID.com. Krieger barrel photo courtesy GS Arizona.
Permalink - Articles, Bullets, Brass, Ammo 3 Comments »
November 20th, 2019

Berger Releases New 6mm 109gr LR Hybrid Target Bullet

New berger 109 grain hybrid bullet LRHT long range hybrid target

A hot new 6mm match bullet has arrived — the impressive Berger 109-grain Hybrid. This new 109-grainer, officially called the Long Range Hybrid Target (LRHT), features a formed meplat (bullet tip) for more consistent Ballistic Coefficient (BC). Berger tells us that the new 109gr LRHT boasts a high-BC, “jump-tolerant” hybrid ogive profile along with an extremely consistent BC. In fact, Doppler Radar testing confirms less than 1% BC variation from bullet to bullet. While a high BC is of course desirable for competitive shooting, shot-to-shot BC consistency is most critical when engaging targets to 600 yards and beyond. The 109’s BC numbers are very impressive for a 6mm bullet: 0.568 G1 and 0.292 G7.

AccurateShooter.com plans to test these new 109s very soon — we’re getting them into the hands of some championship-level shooters. The new 109s should prove very popular. These bullets are optimized for leading accuracy cartridges such as 6mm Creedmoor, 6mmBR, 6BRA, 6mm Dasher, 6BRX, 6GT, 6XC, and 6×47 Lapua among others. NOTE: Berger states that the new 109gr LRHT offers the same stability factor as Berger’s outstanding 105gr Hybrid Target. Accordingly, the new 109 can be considered a “direct replacement” for the 105s. And YES, the 109gr LRHT will work in 1:8″-twist barrels.

“The 6mm 109 offers several advantages,” said Bryan Litz, Berger’s Chief Ballistician. “Its ultra-sleek profile provides a higher Ballistic Coefficient (BC) resulting in less wind drift at all ranges. Using the proprietary MRT technology also results in a higher and more consistent BC, which is important for reducing dispersion at long range.”

New berger 109 grain hybrid bullet LRHT long range hybrid target

Meplat Reduction Technology for More Consistent BCs
Berger’s new 6mm 109-grain Long Range Hybrid Target™ Bullets is designed to provide Benchrest, F-Class, and PRS enthusiasts a class-leading level of precision and consistency. Utilizing advanced/proprietary manufacturing processes, Berger’s Meplat Reduction Technology™ (MRT™) System applies controlled pressure along the projectile nose, producing a homogeneous and repeatable bullet profile. This yields what Berger claims are “the industry’s most consistent Ballistic Coefficients (BC)”.

The Berger 6mm 109 Grain Long Range Hybrid Target™ Bullets will be available very soon at authorized Berger Retailers. Use the Berger Dealer Locator to find a store near you.

Permalink Bullets, Brass, Ammo, New Product, News, Tactical 2 Comments »
October 23rd, 2019

Bullet Pointing 101 — How to Point Match Bullet Tips

Berger Bullet Pointing Applied Ballistics Bryan Litz Whidden Pointing Die pointer

Tech Tip by Doc Beech, Applied Ballistics Support Team
I am going to hit on some key points when it comes to bullet pointing. How much pointing and trimming needed is going to depend on the bullet itself. Specifically how bad the bullets are to begin with. Starting out with better-quality projectiles such as Bergers is going to mean two things. First that you don’t need to do as much correction to the meplat, but also that the improvement is going to be less. NOTE: We recommend you DO NOT POINT hunting bullets. Pointing can affect terminal performance in a bad way.

NOTE the change in the bullet tip shape and hollowpoint size after pointing:
Berger Bullet Pointing Applied Ballistics Bryan Litz Whidden Pointing Die pointer

Don’t Over-Point Your Bullets
What is important here is that you never want to over-point. It is far better to be safe, and under-point, rather than over-point and crush the tips even the slightest bit. To quote Bryan Litz exactly: “Best practice is to leave a tiny air gap in the tip so you’re sure not to compress the metal together which will result in crushing. Most of the gain in pointing is taking the bullet tip down to this point. Going a little further doesn’t show on target”. So in essence you are only bringing the tip down a small amount… and you want to make sure you leave an air gap at the tip.

Salazar Whidden Bullet Pointer system

Also keep in mind, bullet pointing is one of those procedures with variable returns. If you only shoot at 100-200 yards, bullet pointing will likely not benefit you. To see the benefits, which can run from 2 to 10% (possibly more with poorly designed bullets), you need be shooting at long range. Bryan says: “Typically, with pointing, you’ll see 3-4% increase in BC on average. If the nose is long and pointy (VLD shape) with a large meplat, that’s where pointing has the biggest effect; up to 8% or 10%. If the meplat is tight on a short tangent nose, the increase can be as small as 1 or 2%.” For example, If you point a Berger .308-caliber 185gr Juggernaut expect to only get a 2% increase in BC.

Berger Bullet Pointing Applied Ballistics Bryan Litz Whidden Pointing Die pointer

Should You Trim after Pointing?
Sometimes you can see tiny imperfections after pointing, but to say you “need” to trim after pointing is to say that the small imperfections make a difference. Bryan Litz advises: “If your goal is to make bullets that fly uniformly at the highest levels, it may not be necessary to trim them.” In fact Bryan states: “I’ve never trimmed a bullet tip, before or after pointing”. So in the end it is up to you to decide.

Pointing is Easy with the Right Tools
The process of pointing in itself is very simple. It takes about as much effort to point bullets as it does to seat bullets. We are simply making the air gap on the tip of the bullet ever-so smaller. Don’t rush the job — go slow. Use smooth and steady pressure on the press when pointing bullets. You don’t want to trap air in the die and damage the bullet tip. You can use most any press, with a caliber-specific sleeve and correct die insert. The Whidden pointing die has a micrometer top so making adjustments is very easy.

Bryan Litz actually helped design the Whidden Bullet Pointing Die System, so you can order the Pointing Die and Inserts directly from Applied Ballistics. Just make sure that you pick up the correct caliber sleeve(s) and appropriate insert(s). As sold by Applied Ballistics, the Whidden Bullet Pointing Die System comes with the die, one tipping insert, and one caliber-specific sleeve. To see which insert(s) you need for your bullet type(s), click this link:

LINK: Whidden Gunworks Pointing Die Insert Selection Chart

Permalink Bullets, Brass, Ammo, Reloading 5 Comments »
October 15th, 2019

Wind Wisdom from Experts Bryan Litz and Emil Praslick III

Wind reading coaching bryan litz Ben Avery Phoenix wind video

Wind effects are complex. In trying to access wind speeds and angles, you’ll want to watch multiple indicators — mirage, dust, wind-flags, grass movement, and more. You’ll also need to be concerned about wind cycles. In the video below, Bryan Litz talks about variable wind speed along a bullet’s flight path. A respected ballistics guru, Bryan is the founder of Applied Ballistics and a designer of Berger’s Hybrid Match projectiles. He is also a past F-TR National Champion and a High Master Palma ace.

In this video, Bryan discusses how wind effects can vary in intensity at different points along the bullet’s flight path to the target. Sometimes the firing line is sheltered, and the strongest winds come into effect in the middle of the trajectory. Bryan concludes: “Wind matters everywhere … but the best thing you can do is try to get a handle on the wind [velocity and angle] where you are. That may or may not represent the wind down-range — that’s when you have to look downrange and make a judgment[.]”

Litz Competition Tip: Select your wind shooting strategy carefully. For beginners and veterans, most points are typically lost to wind. Successful shooters put a lot of thought into their approach to wind shooting. Sometimes it’s best to shoot fast and minimize the changes you’ll have to navigate. Other times it’s best to wait out a condition which may take several minutes. Develop a comfortable rest position so you have an easier time waiting when you should be waiting.

More Wind Tips from Wind Wizard Emil Praslick
In these two short videos, Emil Praslick III, former coach of the USAMU and USA National long range teams, explains how to find the wind direction and how to confirm your no-wind zero. Praslick is widely considered to be one of the best wind coaches in the USA.

When Winds Are EXTREME — Near Gale Force at Ben Avery

This video shows INSANE winds at NBRSA 100/200 Benchrest Nationals. This was filmed at the Ben Avery Range in Phoenix, AZ during the recent NBRSA 100/200 yard National Championships. Extreme to say the least. Based on what we’re seeing here, there are 20-25 mph crosswinds, with gusts to 35 mph — near Gale Force. Video by Hall-of-Fame Benchrest competitor Gene Bukys.

Texas gunsmith Mike Bryant reports: “This video shows the Unlimited Class 200 at the Nationals in Phoenix. I had three 10-shot groups in the low 2″ range with a 2.228″ being my big group and was glad they weren’t bigger. Thursday and Friday were the worst of the windy days. Unfortunately those were the days for the UL 200 and it was about as windy through most all of the Sporter 200.”

Excellent Wind Reading Resource

The Wind Book for Rifle Shooters covers techniques and tactics used by expert wind-readers. The authors provide a wind-reading “toolbox” for calculating wind speed, direction, deflection and drift. They explain how to read flags and mirage, record and interpret your observations, and time your shots to compensate for wind. Here are two reviews:

This is a must-have book if you are a long-range sport shooter. I compete in F-Class Open and when read it from cover to cover, it helped me understand wind reading and making accurate scope corrections. Buy this book, read it, put into practice what it tells you, you will not be disappointed. — P. Janzso

If you have one book for wind reading, this should be it. It covers how to get wind speed/direction from flags, mirage, and natural phenomenon. This is the best book for learning to read wind speed and direction. — Muddler

Permalink Bullets, Brass, Ammo, Competition, News, Shooting Skills 1 Comment »
October 5th, 2019

Hybrid Bullets: How to Optimize Your Seating Depths

Berger Hybrid Bullet

Every year at SHOT Show in January, bullet-makers showcase their latest and greatest projectiles for hunters and paper-punchers. we plan to get the “inside scoop” on new bullet designs from Berger, Hornady, Lapua, Nosler and Sierra.

A while back, at SHOT Show 2012 we chatted with Berger Ballistician Bryan Litz about Berger’s popular line of Hybrid bullets. Berger now offers a wide range of Hybrids in multiple calibers and weights. In fact, for .30-Caliber shooters, Berger now offers many seven (7) Hybrid match bullets, with weights from 155 grains up to 230 grains. Two .338-caliber OTM Tactical Hybrids were introduced in 2012 (a 250-grainer and a 300-grainer).

Bryan tells us: “The hybrid design is Berger’s solution to the age old problem of precision vs. ease of use. This design is making life easier for handloaders as well as providing opportunities for commercial ammo loaders who need to offer a high performance round that also shoots precisely in many rifles with various chamber/throat configurations.”

For those not familiar with Hybrid bullets, the Hybrid design blends two common bullet nose shapes on the front section of the bullet (from the tip to the start of the bearing surface). Most of the curved section of the bullet has a Secant (VLD-style) ogive for low drag. This then blends in a Tangent-style ogive curve further back, where the bullet first contacts the rifling. The Tangent section makes seating depth less critical to accuracy, so the Hybrid bullet can shoot well through a range of seating depths, even though it has a very high Ballistic Coefficient (BC).

In the video we asked Bryan for recommended seating depths for 7mm and .30-Caliber Hybrid bullets. Bryan advises that, as a starting point, Hybrid bullets be seated .015″ (fifteen thousandths) off the lands in most barrels. Watch the video for more tips how to optimize your loads with Hybrid bullets.

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September 24th, 2019

Wind Wizardry — How to Use a Kestrel Correctly

Kestrel Wind Meter Direction Vane Applied Ballistics

A lot of folks use a Kestrel Wind Meter every time at the range. That’s a good thing. However, many Kestrel owners may not be employing the Kestrel properly when seeking wind direction.

A Kestrel Wind Meter will record wind speed with its impeller wheel. However, to get the most accurate wind velocity reading, you need to have your Kestrel properly aligned with the wind direction. To find wind direction, first orient the Kestrel so that the impeller runs at minimal speed (or stops), and only then turn the BACK of the Kestrel into the wind direction. Do NOT simply rotate the Kestrel’s back panel looking for the highest wind speed reading — that’s not the correct method for finding wind direction. Rotate the side of the Kestrel into the wind first, aiming for minimal impeller movement. The correct procedure is explained below by the experts at Applied Ballistics.

How to Find the Wind Direction with a Kestrel Wind Meter

Here is the correct way to determine wind direction with a Kestrel wind meter when you have no environmental aids — no other tools than a Kestrel. (NOTE: To determine wind direction, a mounted Wind Vane is the most effective tool, but you can also look at flags, blowing grass, or even the lanyard on your Kestrel).

Step 1: Find the wind’s general direction.

Step 2: Rotate the Wind Meter 90 degrees, so that the wind is impacting the side (and not the back) of the wind meter, while still being able to see the impeller.

Step 3: Fine-tune the direction until the impeller drastically slows, or comes to a complete stop (a complete stop is preferred). If the impeller won’t come to a complete stop, find the direction which has the lowest impact on the impeller.

Step 4: Turn the BACK of the Kestrel towards the direction from which the wind is blowing. Then press the capture button, and record your wind speed.

Do NOT simply point the Kestrel’s back into the wind until you get the highest wind speed — that’s not the correct method.

Permalink Shooting Skills, Tech Tip 1 Comment »
September 5th, 2019

G1 vs. G7 Ballistic Coefficient Models — What You Need to Know

G1 G7 BC drag models

Over the past 12 months, this article was one of the TOP TEN most-read Daily Bulletin features. We’re reprising it today for those who may have missed it the first time. The above diagram comes from a TiborasurasRex YouTube Video comparing G1 and G7 BC models. CLICK HERE to watch the video.

The better, up-to-date ballistics programs let you select either G1 or G7 Ballistic Coefficient (BC) values when calculating a trajectory. The ballistic coefficient (BC) of a body is a measure of its ability to overcome air resistance in flight. You’ve probably seen that G7 values are numerically lower than G1 values for the same bullet (typically). But that doesn’t mean you should select a G1 value simply because it is higher.

Some readers are not quite sure about the difference between G1 and G7 models. One forum member wrote us: “I went on the JBM Ballistics website to use the web-based Trajectory Calculator and when I got to the part that gives you a choice to choose between G1 and G7 BC, I was stumped. What determines how, or which one to use?”

The simple answer is the G1 value normally works better for shorter flat-based bullets, while the G7 value should work better for longer, boat-tailed bullets.

G1 vs. G7 Ballistic Coefficients — Which Is Right for You?
G1 and G7 refer both refer to aerodynamic drag models based on particular “standard projectile” shapes. The G1 shape looks like a flat-based bullet. The G7 shape is quite different, and better approximates the geometry of a modern long-range bullet. So, when choosing your drag model, G1 is preferrable for flat-based bullets, while G7 is ordinarily a “better fit” for longer, boat-tailed bullets.

G1 G7 Ballistic coefficients

Drag Models — G7 is better than G1 for Long-Range Bullets
Many ballistics programs still offer only the default G1 drag model. Bryan Litz, author of Applied Ballistics for Long Range Shooting, believes the G7 standard is preferrable for long-range, low-drag bullets: “Part of the reason there is so much ‘slop’ in advertised BCs is because they’re referenced to the G1 standard which is very speed sensitive. The G7 standard is more appropriate for long range bullets. Here’s the results of my testing on two low-drag, long-range boat-tail bullets, so you can see how the G1 and G7 Ballistic coefficients compare:

G1 BCs, averaged between 1500 fps and 3000 fps:
Berger 180 VLD: 0.659 lb/in²
JLK 180: 0.645 lb/in²

The reason the BC for the JLK is less is mostly because the meplat was significantly larger on the particular lot that I tested (0.075″ vs 0.059″; see attached drawings).

For bullets like these, it’s much better to use the G7 standard. The following BCs are referenced to the G7 standard, and are constant for all speeds.

G7 BCs:
Berger 180 VLD: 0.337 lb/in²
JLK 180: 0.330 lb/in²

Many modern ballistics programs, including the free online JBM Ballistics Program, are able to use BCs referenced to G7 standards. When available, these BCs are more appropriate for long range bullets, according to Bryan.

[Editor’s NOTE: BCs are normally reported simply as an 0.XXX number. The lb/in² tag applies to all BCs, but is commonly left off for simplicity.]

Permalink Bullets, Brass, Ammo, Reloading No Comments »
August 27th, 2019

Watch Randy Wise Set ELR World Record — On Video

Randy Wise ELR match Camp Atterbury .338 Lapua Magnum

What’s it feel like to hit a 2158-yard target (from cold bore), and set a world record in the process? Well watch the video below to find out. Last week we reported that shooter Randy Wise set a new ELR Central world record, going three-for-three (from cold bore) at 2158 yards. The feat took place at the recent NRA ELR Championship at Camp Atterbury, Indiana. And he did that with a factory Savage action and barrel!

We first reported on Randy’s ELR record last week in the Bulletin. Now we have more photos, and most importantly, a video. You can now watch Randy Wise make his three hits in a row, starting with Cold Bore shot, at 2158 yards. The video was captured by Clay Rhoden of TargetVision/Longshot Target Cameras.

Watch Randy Wise Make ELR World-Record Three Straight Hits at 2158 Yards:

Watch the full sequence above (sorry there is no sound). Note that there were previously some hit marks on the 36″ x 36″ steel target. Ignore those. Steve’s first hit is at the bottom right — barely above the edge of the plate. At 0:42 you see the bright light flash indicating a hit. The second shot impacts in the top right — see the light flash at 1:09. The third and final hit impacts about 6″ up from the bottom, at 1:24. When the flashing light confirms Hit #3, Randy shows his emotion, pumping his fists with excitement.

Randy Wise ELR match Camp Atterbury .338 Lapua Magnum

Remarkably, Randy set the new ELR record using a stock Savage action and Savage factory barrel chambered for the .338 Lapua Magnum cartridge. The Savage barreled action was mounted in an Accurate Rifles Systems chassis with Rempel bipod. Randy’s rifle had a factory stock 26″ 1:9″-twist barrel chambered in .338 Lapua Magnum. His load featured Lapua .338 LM brass, Berger 300gr Hybrid bullets, Federal 215M primers, and a stout charge of Hodgdon Retumbo powder. Ballistics solution by Applied Ballistics LLC. For optics, Randy used a Vortex 15-60x52mm Golden Eagle.

ELR World Record Standards
One video viewer asked why this was a world record, when longer shots have been made in K02M competition. Here’s the answer from Applied Ballistics: “To be an ELR World Record it has to be done cold bore, and three for three. No sighters, no practice, no walking the shots on, no accuracy by volume. Also neither the shooter or rifle can have been fired in the past 24 hours, to ensure it’s truly cold bore. It’s a test of skill and knowledge of your system.” Skill indeed. 2158 Yards is 1.226 MILES. At that distance, Randy shot a group measuring roughly 1.3 MOA vertical and half-minute horizontal.

Randy Wise ELR match Camp Atterbury .338 Lapua Magnum

For his efforts, Randy received glory, and a nice $1000-dollar check from McMillan Fiberglass stocks. Here Randy poses with his check, flanked by Bryan Litz (left) and Kelly McMillan (right). The match was officiated by Clay Rhoden. Doc Beech of Applied Ballistics was the certifying official.

Permalink - Videos, Competition, Tactical 1 Comment »
August 5th, 2019

Applied Ballistics Mobile Lab Maiden Voyage to Texas

Applied Ballistics Texas Mobile Lab Trailer doppler radar Barrett ELR

The folks at Applied Ballistics have a new toy — a large trailer filled with all the latest and greatest tech gear for testing long-range ballistics. Bryan Litz reported: “The maiden voyage for the AB Mobile Lab in Texas this week was a huge success! We look forward to supporting more long range shooting events.” Mitchell Fitzpatrick was there in the Lone Star state with fellow Applied Ballistics staffer Christopher Palka. The Applied Ballistics team will be trailering the Mobile Lab to Indiana where it will be on hand for the NRA National Championships at Camp Atterbury this month.

Applied Ballistics Texas Mobile Lab Trailer doppler radar Barrett ELR
Ten rifles, heaps of cables, huge Doppler Radar unit, military-grade Laser RFs on tripods, spare barrels, safety gear — all ready for action in Texas.

About the Applied Ballistics Mobile Lab

Q: What is the basic purpose of the Applied Ballistics Mobile Lab?

Mitchell Fitzpatrick: The Mobile Lab allows us to effectively carry out ballistics testing in the field and at events. It has most of the capabilities of our normal lab, but on wheels.

Q: What hardware and electronics are carried in the Mobile Lab? What are its capabilities?

Bryan Litz: The Mobile Lab will transport most everything that’s in the main lab including the Doppler radar. This rig is new and we haven’t fully outfitted it yet. The load-outs will be somewhat flexible depending on the venue we are supporting.

Applied Ballistics Texas Mobile Lab Trailer doppler radar Barrett ELR
The three rifles on the left are Barrett MRADS, $6000-$6154 MSRP, before optics.

Applied Ballistics Texas Mobile Lab Trailer doppler radar Barrett ELR

Applied Ballistics Texas Mobile Lab Trailer doppler radar Barrett ELR

NOTE to Readers — Check back at the end of the day. We will have more technical information from Bryan Litz and the Applied Ballistics team…

Permalink Bullets, Brass, Ammo, Tech Tip 1 Comment »
July 28th, 2019

Jumbo $275.00 Magazine for .375 EnABELR Cartridge

.375 cheytac .408 cheytac EnABLER Applied Ballistics Bryan Litz Cadex defense

.375 cheytac .408 cheytac EnABLER Applied Ballistics Bryan Litz Cadex defenseThe .375 EnABELR cartridge was developed to offer magazine feeding capabilities with the highest-BC solid bullets available. Applied Ballistics observes: “The best magazine is one that retains the cartridge shoulder and doesn’t allow the tip of the bullet to impact the front of the magazine during recoil.” Cadex Defense has designed magazines that fit Cadex’s bottom metal and chassis for the EnABELR line of cartridges which allows for maximum magazine fed performance. These mags are beautifully made, but they will be very EXPENSIVE. Expect to pay about $275 per magazine — what the Cadex 375/408 CheyTac magazine currently costs (Product Code: MAG4300, USD $273.95).

Q: Is this different than Cadex’s regular CheyTac magazine?

A: Mitchell Fitzpatrick of Applied Ballistics Weapons Division replied: “Yes, the ribs that retain the shoulder are moved back to hold the case back and prevent the bullet tip from hitting the front of the magazine. We had been playing with inserts welded into place, which worked great, but dedicated mags directly from Cadex was the ultimate goal.”

.375 cheytac .408 cheytac EnABLER Applied Ballistics Bryan Litz Cadex defense
Here is Mitchell Fitzpatrick, shooting the 375 EnABELR in an ELR Competition.

“CADEX and Applied Ballistics. Two companies taking ELR seriously and trying to get that last 1-2% of performance out of the system. Keep up the good work!” — Mark N.

The .375 EnABELR Cartridge — Big and Fast

The .375 EnABELR cartridge is slightly shorter than a .375 CheyTac so it allows the round to mag-feed. Applied Ballistics is currently using brass made by Peterson. The .375 EnABELR has achieved impressive velocities — 2990 FPS — with prototype Berger 379-grain solid bullets fired from a 1:7″-twist 30″ barrel. Applied Ballistics may also test 1:8″-twist and 1:9″-twist barrels. READ Bullet Testing Report.

Berger 379 grain 379gr solid bullet .375 caliber enabler

The .375 EnABELR cartridge was designed to offer .375 CheyTac performance in a slightly shorter package: “The problem with the .375 CheyTac is that, when loaded with the highest performance .375 caliber bullets (379-407 gr Berger Solids, and the 400-425 grain Cutting Edge Lazers) the round is not magazine feed-able in any action that’s sized for CheyTac cartridges.

Berger 379 grain 379gr solid bullet .375 caliber enabler

“Knowing the .375 CheyTac produced substantial performance, and that it was just too long for magazine feeding, made it easy to converge on a design for the .375 EnABELR. We just had to make the case short enough to achieve magazine length with the desired bullets, while adding a little more diameter to keep the case capacity similar to the .375 CheyTac. The resulting basic shape is quite similar in proportions to the successful .338 Norma Magnum Cartridge which, interestingly, was selected as the cartridge for General Dynamics Lightweight Medium Machine Gun (LWMMG).”

Permalink Bullets, Brass, Ammo, Competition, New Product No Comments »
July 11th, 2019

Get Smart — Read FREE Applied Ballistics TECH Articles

Want to improve your understanding of Ballistics, Bullet Design, Bullet Pointing, and other shooting-related tech topics? Well here’s a treasure trove of gun expertise. Applied Ballistics offers three dozen FREE tech articles on its website. Curious about Coriolis? — You’ll find answers. Want to understand the difference between G1 and G7 BC? — There’s an article about that.

“Doc” Beech, technical support specialist at Applied Ballistics says these articles can help shooters working with ballistics programs: “One of the biggest issues I have seen is the misunderstanding… about a bullet’s ballistic coefficient (BC) and what it really means. Several papers on ballistic coefficient are available for shooters to review on the website.”

Credit Shooting Sports USA Editor John Parker for finding this great resource. John writes: “Our friends at Applied Ballistics have a real gold mine of articles on the science of accurate shooting on their website. This is a fantastic source for precision shooting information[.] Topics presented are wide-ranging — from ballistic coefficients to bullet analysis.”

READ All Applied Ballistics Articles HERE »

Here are six (6) of our favorite Applied Ballistics articles, available for FREE as PDF files. There are 31 more, all available on the Applied Ballistics Articles Webpage.

Permalink - Articles, Bullets, Brass, Ammo, Reloading, Tech Tip 2 Comments »
July 5th, 2019

Optimize Bullet RPM with Berger Twist Rate Stability Calculator

Berger twist rate calculator

Berger twist rate calculatorBerger Twist-Rate Stability Calculator
On the Berger Bullets website you’ll find a handy Twist-Rate Stability Calculator that predicts your gyroscopic stability factor (SG) based on mulitiple variables: velocity, bullet length, bullet weight, barrel twist rate, ambient temperature, and altitude. This cool tool tells you if your chosen bullet will really stabilize in your barrel.


CLICK HERE to Go to TWIST RATE CALCULATOR PAGE »

How to Use Berger’s Twist Rate Calculator
Using the Twist Rate Calculator is simple. Just enter the bullet DIAMETER (e.g. .264), bullet WEIGHT (in grains), and bullet overall LENGTH (in inches). On its website, Berger conveniently provides this info for all its bullet types. For other brands, we suggest you weigh three examples of your chosen bullet, and also measure the length on three samples. Then use the average weight and length of the three. To calculate bullet stability, simply enter your bullet data (along with observed Muzzle Velocity, outside Temperature, and Altitude) and click “Calculate SG”. Try different twist rate numbers (and recalculate) until you get an SG value of 1.4 (or higher).

Gyroscopic Stability (SG) and Twist Rate
Berger’s Twist Rate Calculator provides a predicted stability value called “SG” (for “Gyroscopic Stability”). This indicates the Gyroscopic Stability applied to the bullet by spin. This number is derived from the basic equation: SG = (rigidity of the spinning mass)/(overturning aerodynamic torque).

Berger twist rate calculator

If you have an SG under 1.0, your bullet is predicted not to stabilize. If you have between 1.0 and 1.1 SG, your bullet may or may not stabilize. If you have an SG greater than 1.1, your bullet should stabilize under optimal conditions, but stabilization might not be adequate when temperature, altitude, or other variables are less-than-optimal. That’s why Berger normally recommends at least 1.5 SG to get out of the “Marginal Stability” zone.

In his book Applied Ballistics For Long-Range Shooting, Bryan Litz (Berger Ballistician) recommends at least a 1.4 SG rating when selecting a barrel twist for a particular bullet. This gives you a safety margin for shooting under various conditions, such as higher or lower altitudes or temperatures.

Story idea from EdLongrange. We welcome reader submissions.
Permalink Bullets, Brass, Ammo, Tech Tip 1 Comment »
July 2nd, 2019

Paul Phillips Crowned 2019 King of 2 Miles in New Mexico

Ko2m king two miles raton whittington center New Mexico Paul Phillips McMillan Litz ELR
Hail the King — Paul Phillips wears crown as the new 2019 King of Two Miles.

Paul Phillips, Captain of Team Global Precision Group (GPG), is the 2019 King of 2 Miles. Hail the new King! Paul won the event with a score of 48350, beating runner-up Robert Brantley who scored 46306. Fellow GPG shooter and 2017 K02M winner Derek Rodgers finished third with 38747. Phillips secured his K02M crown with good shooting in Raton, NM on both Day 1 and Day 2. On the final day, Paul had two hits at 2728 yards and one at 3166 yards. No competitor scored more than one hit at 3166 yards (1.799 miles), and no competitor scored even a single hit at the farthest target, placed at 3525 yards (2.0028 miles). So the actual 2-Mile target was never hit during the event.

Ko2m king two miles raton whittington center New Mexico Paul Phillips McMillan Litz ELR
Here are the target locations and yardages for K02M Day 2 Finals.

Ko2m king two miles raton whittington center New Mexico Paul Phillips McMillan Litz ELR
Team GPG members Derek Rodgers, Paul Phillips (center), and Mark Lonsdale with KO2M-winning rifle, K02M Trophy, $5000 Winner’s Prize from McMillan, and Nightforce Certificate.

Team Global Precision Dominates with Three of Top Four Places
Team Global Precision Group was top team overall with Paul Phillips in First Place, Derek Rodgers in Third, and Mark Lonsdale in Fourth. Team GPG, in its first world-level match together, dominated the field of 80 of the best ELR shooters in the world. First, Third, and Fourth — that’s mighty impressive gentlemen!

2019 KO2M Top 20 Results. Click on the table to see full-screen version:
Ko2m king two miles raton whittington center New Mexico Paul Phillips McMillan Litz ELR

Paul Phillips, who recently competed in the European K02M match in France, gave credit to his sponsors and team-mates: “Team GPG is honored to be … King of 2 Mile Champions. I’ve always wondered what it would feel like to be carried around on the King chair. I am humbled to be added to the list of great shooters that have been crowned before me.”

Ko2m king two miles raton whittington center New Mexico Paul Phillips McMillan Litz ELR

Paul added: “Big shout-out to all our sponsors, the match organizers, Eduardo, FCSA, and the volunteers who work so hard to make these ELR matches a major success. We’ll definitely be back in 2020!”

“Paul Phillips your win in this match is yet another example of the value of hard work paying off. I can honestly say that I don’t know anyone who works harder at ELR competition and promotion than you do. You deserve this win!” — Bryan Litz, Applied Ballistics

Equipment List for .416 Barrett 2019 KO2M-Winning Rifle

Paul’s massive KO2M rig features a BAT EX .50-Cal action with a 38″ Bartlein 1:9″-twist 5R barrel chambered for the standard .416 Barrett cartridge. The stock is a McMillan Beast One model. To tame recoil, Paul runs a T5 Terminator muzzle brake. The scope is a Nightforce 7-35x56mm ATACR F1 with MOAR Reticle. Up front is a Phoenix Precision Bipod, with an Edgewood Mini-Gator Bag in the rear. Paul is running a Bix’N Andy Comp Trigger with a 4-ounce, single-stage pull.

The complete rifle weighs 40 pounds. Bartlein did the .416 Barrett chambering using a Dave Manson reamer. Alex Sitman bedded the action in the McMillan stock as he did for the other GPG rifles. In fact, all three Team GPG rifles are essentially identical.

Load Details: Standard .416 Barrett cartridge, running .416 Caliber 550gr solid Cutting Edge Bullets at 3000 fps. The powder is Vihtavuori 20N29 ignited by RWS .50 Caliber primers. The cartridge brass is Barrett brand, produced by RUAG.

Support Gear: Ballistics are calculated with Applied Ballistics Software using velocity data from a LabRadar chronograph. Swarovski provided Team GPG with two big BTX 95 binocular spotting scopes. Phillips says “these BTX 95s really help us follow trace, spot impacts, and get on target quickly.”

Ko2m king two miles raton whittington center New Mexico Paul Phillips McMillan Litz ELR
Here are Team Applied Ballistics competitors at the 2019 KO2M event in Raton, NM. Applied Ballistics’ Mitchell Fitzpatrick posted: “[There were] some unique challenges this year, but I managed to finish in 5th place running a sub-25 pound rifle. That’s the result of a lot of our ESSO research.”

$5000 KO2M Winner’s Prize from McMillan Fiberglass Stocks

Ko2m king two miles raton whittington center New Mexico Paul Phillips McMillan Litz ELR

McMillan Fiberglass Stocks is a strong supporter of the shooting sports. Here Kelly McMillan presents Paul Phillips with a $5,000 check from McMillan Fiberglass Stocks for winning the 2019 King of 2 Mile while shooting a McMillan stock. Teammates Derek Rodgers and Mark Lonsdale also used McMillan stocks in the 2019 K02M Finals. Along with the McMillan check, Paul Phillips received $5000 from Nightforce Optics, and $1200 from Cutting Edge Bullets. Paul told us he will divide all the winnings with his team-mates because: “I won with my team — we won together.”

Ko2m king two miles raton whittington center New Mexico Paul Phillips Derek Love Team Manners Litz ELR
Derek Love competed with Team Manners Composite Stocks and took many photos. You’ll find some great 2019 K02M images on Derek’s Facebook Page.

Permalink Competition, News, Tactical 5 Comments »
April 29th, 2019

Wind Hack — Estimate Crosswind Deflection Without a Meter

Applied Ballistics Crosswind Estimation Wind hack G7 BC

Applied Ballistics Wind Hack

Any long range shooter knows that wind is our ultimate nemesis. The best ways of overcoming wind are to measure what we can and use computers to calculate deflection. The Applied Ballistics Kestrel is a great tool for this. As good as our tools may be, we don’t always have them at our fingertips, or they break, batteries go dead, and so on. In these cases, it’s nice to have a simple way of estimating wind based on known variables. There are numerous wind formulas of various complexity.

Applied Ballistics Crosswind Estimation Wind hack G7 BC

The Applied Ballistics (AB) Wind Hack is about the simplest way to get a rough wind solution. Here it is: You simply add 2 to the first digit of your G7 BC, and divide your drop by this number to get the 10 mph crosswind deflection. For example, suppose you’re shooting a .308 caliber 175-grain bullet with a G7 BC of 0.260 at 1000 yards, and your drop is 37 MOA. For a G7 BC of 0.260, your “wind number” is 2+2=4. So your 10 mph wind deflection is your drop (37 MOA) divided by your “wind number” (4) = 9.25 MOA. This is really close to the actual 9.37 MOA calculated by the ballistic software.

WIND HACK Formula

10 mph Cross Wind Deflection = Drop (in MOA) divided by (G7 BC 1st Digit + 2)

Give the AB wind hack a try to see how it works with your ballistics!

Some Caveats: Your drop number has to be from a 100-yard zero. This wind hack is most accurate for supersonic flight. Within supersonic range, accuracy is typically better than +/-6″. You can easily scale the 10 mph crosswind deflection by the actual wind speed. Wind direction has to be scaled by the cosine of the angle.

Permalink - Articles, Shooting Skills, Tactical 1 Comment »
April 16th, 2019

Applied Ballistics Spring Seminar — Register Now and Save

Applied Ballistics Snowbird utah spring seminar ELR

The Applied Ballistics 2019 Spring Seminar will be held at Snowbird Resort in Utah on June 1-2, 2019. The Seminar Fee is $625.00. However, now through April 21st you can use Code ABWIRE for $75 off registration. Note — Seminar fees do NOT include lodging! However, through May 4, 2019, attendees can reserve rooms at the Center-Cliff Lodge at the special seminar rate of $145.00 per night plus tax.

CLICK HERE to Register for $550 with Code ABWIRE

Primary speaker Bryan Litz will present material from his books, the Applied Ballistics Lab, and his experience shooting in various disciplines. Additional speakers addressing ballistics and long-range shooting topics will include Nick Vitalbo, Doc Beech, Alan Barnhart, Mitchell Fitzpatrick and other industry experts.

Seminar attendees will receive multiple Applied Ballistics products, all included in the registration fee:
1) Full library of Applied Ballistics Books and DVD set, valued at $275.
2) Applied Ballistics Analytics software, valued at $200.
3) Binder including hand-outs, articles, and worksheets.

Applied Ballistics Snowbird utah spring seminar ELR

Seminar Topics Will Include:

1. Trajectory Buildup – Baseline Trajectory, Gravity Drop, Vacuum Trajectory, and Aerodynamic Drag

2. Trajectory Features – Zeroing, Point Blank Range, Danger Space, and Uphill/Downhill Effects.

3. Sights – Tall Target Test (Sight Scale Factor and Cant), Aperture Sights, Turrets vs. Holding Reticles, and Extreme Adjustment for ELR.

4. Drag Modeling – What is a drag model, how is drag measured, how is a drag model used, and standard drag models.

5. Ballistic Coefficients – What is a BC, G1 and G7, Curve Fitting Challenges (averaged BCs, segmented BCs), and Estimating BCs.

6. Wind – Nature of wind, Mechanism of wind deflection (velocity scaling, lag time, wind deflection), near vs. far wind, wind measurement, terrain and vertical wind, competition Wind strategies, Wind coaching.

7. Basic Stability – Gyroscopic Stability Factor, Twist Rate Effects (muzzle velocity, precision, and BC).

8. Advanced Stability – Gyroscopic vs Dynamic Stability, Limit Cycle Yaw, Twist rate and Stability Effects in Transonic Flight, and Spin Decay.

9. Secondary Effects – Spin Drift, Coriolis, Aerodynamic Jump, Secondary Effects in Ballistic Solvers.

10. ELR Shooting – Transonic effects, Secondary Effects, Critical Nature of (Ranging, MV Measurement, Drag Modeling, Wind), Equipment Currently Being Used and Bullet Selection.

Applied Ballistics Snowbird utah spring seminar ELR

11. WEZ Analysis – What is WEZ, Confidence Environments, Precision (Wind, Range, MV), Accuracy (Sights, Trajectory Modeling, Secondary Effects, Calibration (Trueing)).

12. Ballistic Solvers – Components (Interface, Solver/Simulation, Model), Potential Accuracy, and walk-through of use with technical explanation of inputs.

13. Other Topics – Technology, Laser RangeFinders, Non-Linear Divergence, and Much More.

Permalink Shooting Skills, Tech Tip No Comments »
March 27th, 2019

Accuracy vs. Precision — Litz Explains the Difference

Applied Ballistics Rounds on Target DVD accurateshooter.com

The NSSF has posted a video featuring Bryan Litz of Applied Ballistics. Bryan also serves as Chief Ballistician for Berger Bullets and ABM Ammo. In this short video, Bryan explains the importance of ballistics for precision shooting at long range. Bryan covers key elements — drop, wind drift, angle correction and more. And Bryan also explains the key difference between Accuracy and Precision.

The principles Bryan discusses are covered (in greater detail) in the Putting Rounds on Target instructional DVD set. This 3-Disc collection boasts a total run-time of 3 hours and 37 minutes. The three DVDs, with many graphics and video segments, deliver as much information as a weekend shooting seminar… at a fraction of the cost. The 3-DVD set sells for $44.95.

Applied Ballistics Rounds on Target DVD accurateshooter.com

Disc 1

• Accuracy & Precision
• Tall Target Test
• Chronographs & Statistics
• Ballistic Coefficient
• Trajectory Terms
• Run Time: 1 hour, 4 min

Disc 2

• Primary Elevation (Wind)
• Secondary Effects
• Using Ballistics Solvers
• Short & LR Equipment
• Run Time: 1 hour, 11 min

Disc 3

• On The Range: .308 Win
• On The Range: .284 Win
• On The Range: .338 LM
• Extended Range Shooting
• One Mile Shooting
• Run Time: 1 hour, 22 min

DVD Applied Ballistics Bryan Litz Shooting F-Class .284 Win .338 LM

Permalink Bullets, Brass, Ammo, Shooting Skills, Tech Tip No Comments »
March 26th, 2019

Angular Measurement — Mil vs. MOA — What You Need to Know

Mil MOA reticle ranging PRS tactical minute angle precision rifle series
Visit PrecisionRifleBlog.com for a discussion of MIL vs. MOA.

Many guys getting started in long range shooting are confused about what kind of scope they should buy — specifically whether it should have MIL-based clicks or MOA-based clicks. Before you can make that decision, you need to understand the terminology. This article, with a video by Bryan Litz, explains MILS and MOA so you can choose the right type of scope for your intended application.

This March-FX 5-40x56mm Tactical FFP scope features 0.05 MIL Clicks.
Mil MOA reticle ranging PRS tactical minute angle precision rifle series

You probably know that MOA stands for “Minute of Angle” (or more precisely “minute of arc”), but could you define the terms “Milrad” or “MIL”? In his latest video, Bryan Litz of Applied Ballitics explains MOA and MILs (short for “milliradians”). Bryan defines those terms and explains how they are used. One MOA is an angular measurement (1/60th of one degree) that subtends 1.047″ at 100 yards. One MIL (i.e. one milliradian) subtends 1/10th meter at 100 meters; that means that 0.1 Mil is one centimeter (1 cm) at 100 meters. Is one angular measurement system better than another? Not necessarily… Bryan explains that Mildot scopes may be handy for ranging, but scopes with MOA-based clicks work just fine for precision work at known distances. Also because one MOA is almost exactly one inch at 100 yards, the MOA system is convenient for expressing a rifle’s accuracy. By common parlance, a “half-MOA” rifle can shoot groups that are 1/2-inch (or smaller) at 100 yards.

What is a “Minute” of Angle?
When talking about angular degrees, a “minute” is simply 1/60th. So a “Minute of Angle” is simply 1/60th of one degree of a central angle, measured either up and down (for elevation) or side to side (for windage). At 100 yards, 1 MOA equals 1.047″ on the target. This is often rounded to one inch for simplicity. Say, for example, you click up 1 MOA (four clicks on a 1/4-MOA scope). That is roughly 1 inch at 100 yards, or roughly 4 inches at 400 yards, since the target area measured by an MOA subtension increases with the distance.

one MOA minute of angle diagram

MIL vs. MOA for Target Ranging
MIL or MOA — which angular measuring system is better for target ranging (and hold-offs)? In a recent article on his PrecisionRifleBlog.com website, Cal Zant tackles that question. Analyzing the pros and cons of each, Zant concludes that both systems work well, provided you have compatible click values on your scope. Zant does note that a 1/4 MOA division is “slightly more precise” than 1/10th mil, but that’s really not a big deal: “Technically, 1/4 MOA clicks provide a little finer adjustments than 1/10 MIL. This difference is very slight… it only equates to 0.1″ difference in adjustments at 100 yards or 1″ at 1,000 yards[.]” Zant adds that, in practical terms, both 1/4-MOA clicks and 1/10th-MIL clicks work well in the field: “Most shooters agree that 1/4 MOA or 1/10 MIL are both right around that sweet spot.”

READ MIL vs. MOA Cal Zant Article.

Permalink - Articles, - Videos, Shooting Skills 6 Comments »
March 10th, 2019

Tall Target Test — How to Verify Your Scope’s True Click Values

Scope Click Verify Elevation Tall Target Bryan Litz NSSF test turret MOA MIL

Have you recently purchased a new scope? Then you should verify the actual click value of the turrets before you use the optic in competition (or on a long-range hunt). While a scope may have listed click values of 1/4-MOA, 1/8-MOA or 0.1 Mils, the reality may be slightly different. Many scopes have actual click values that are slightly higher or lower than the value claimed by the manufacturer. The small variance adds up when you click through a wide range of elevation.

In this video, Bryan Litz of Applied Ballistics shows how to verify your true click values using a “Tall Target Test”. The idea is to start at the bottom end of a vertical line, and then click up 30 MOA or so. Multiply the number of clicked MOA by 1.047 to get the claimed value in inches. For example, at 100 yards, 30 MOA is exactly 31.41 inches. Then measure the difference in your actual point of impact. If, for example, your point of impact is 33 inches, then you are getting more than the stated MOA with each click (assuming the target is positioned at exactly 100 yards).

Scope Click Verify Elevation Tall Target Bryan Litz NSSF test turret MOA MIL

How to Perform the Tall Target Test
The objective of the tall target test is to insure that your scope is giving you the proper amount of adjustment. For example, when you dial 30 MOA, are you really getting 30 MOA, or are you getting 28.5 or 31.2 MOA? The only way to be sure is to verify, don’t take it for granted! Knowing your scopes true click values insures that you can accurately apply a ballistic solution. In fact, many perceived inaccuracies of long range ballistics solutions are actually caused by the scopes not applying the intended adjustment. In order to verify your scope’s true movement and calculate a correction factor, follow the steps in the Tall Target Worksheet. This worksheet takes you thru the ‘calibration process’ including measuring true range to target and actual POI shift for a given scope adjustment. The goal is to calculate a correction factor that you can apply to a ballistic solution which accounts for the tracking error of your scope. For example, if you find your scope moves 7% more than it should, then you have to apply 7% less than the ballistic solution calls for to hit your target.


CLICK HERE to DOWNLOAD Tall Target Worksheet (PDF) »

NOTE: When doing this test, don’t go for the maximum possible elevation. You don’t want to max out the elevation knob, running it to the top stop. Bryan Litz explains: “It’s good to avoid the extremes of adjustment when doing the tall target test.I don’t know how much different the clicks would be at the edges, but they’re not the same.”

Should You Perform a WIDE Target Test Too?
What about testing your windage clicks the same way, with a WIDE target test? Bryan Litz says that’s not really necessary: “The wide target test isn’t as important for a couple reasons. First, you typically don’t dial nearly as much wind as you do elevation. Second, your dialed windage is a guess to begin with; a moving average that’s different for every shot. Whereas you stand to gain a lot by nailing vertical down to the click, the same is not true of windage. If there’s a 5% error in your scope’s windage tracking, you’d never know it.”

Scope Tall Test level calibrationVerifying Scope Level With Tall Target Test
Bryan says: “While setting up your Tall Target Test, you should also verify that your scope level is mounted and aligned properly. This is critical to insuring that you’ll have a long range horizontal zero when you dial on a bunch of elevation for long range shots. This is a requirement for all kinds of long range shooting. Without a properly-mounted scope level (verified on a Tall Target), you really can’t guarantee your horizontal zero at long range.”

NOTE: For ‘known-distance’ competition, this is the only mandatory part of the tall target test, since slight variations in elevation click-values are not that important once you’re centered “on target” at a known distance.

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