More and more people are reading books on tablet computers and eReader devices such as the Kindle and Nook. Recognizing the demand for digital resource works, Applied Ballistics has just releases of its first eBook — a digital version of Accuracy and Precision for Long Range Shooting. This work (which has sold 5000 hard copy versions), is now available in electronic format for both Kindle and Nook eReaders. iPad users can use the Kindle app to access the eBook.
This book discusses how to evaluate multiple variables to improve your hit percentage. It explains how to correct the trajectories for drop, wind deflection, etc. through the use of Weapon Employment Zone (WEZ) analysis. WEZ is applied throughout the book, showing readers how to get more rounds on targets, more reliably. Case studies (with live fire verification for many scenarios) show what things affect your hit probability at long range.
All formats of the eBook are sold for $27.99 (hardcopy is $34.99). The Kindle book is available directly from Amazon.com, while the Nook version can be purchased from BarnesandNoble.com.
Free eReader Content on Applied Ballistics Website
If you have a Kindle, Nook, or iPad, you should visit the Ballistics website. You’ll find many free technical articles you can download as PDF files or in Kindle format or Nook format. To access these FREE articles, select the “Recreational” or “Professional” tabs on the top of the Applied Ballistics home page, then choose the “Articles” link from the pull-down menu. Bryan Litz tells us: “We recently updated our website and we’ve included a number of free articles about bullet design, long-range ballistics, and aspects of WEZ analysis. You don’t need an eReader for these — just download the PDF versions.”
Next time you have a barrel fitted, consider having your gunsmith create a “stub gauge” from a left-over piece of barrel steel (ideally taken from your new barrel blank). The outside diameter isn’t important — the key thing is that the stub gauge is created with the same reamer used to chamber your current barrel, and the stub must have the same bore diameter, with the same land/groove configuration, as the barrel on your rifle. When properly made, a stub gauge gives you an accurate three-dimensional model of the upper section of your chamber and throat. This comes in handy when you need to bump your case shoulders. Just slide a fired case (with spent primer removed) in the stub gauge and measure from base of case to the end of the gauge. Then, after bumping, re-measure to confirm how much you’ve moved the shoulder.
In addition, the stub gauge lets you measure the original length to lands and freebore when your barrel was new. This gives you a baseline to accurately assess how far your throat erodes with use. Of course, as the throat wears, to get true length-to-lands dimension, you need take your measurement using your actual barrel. The barrel stub gauge helps you set the initial bullet seating depth. Seating depth is then adjusted accordingly, based on observed throat erosion, or your preferred seating depth.
Forum member RussT explains: “My gunsmith [makes a stub gauge] for me on every barrel now. I order a barrel an inch longer and that gives him enough material when he cuts off the end to give me a nice case gauge. Though I don’t have him cut that nice-looking window in the side (as shown in photos). That’s a neat option. You can tell how much throat erosion you are getting from when it was new as well. For measuring initial seating depths, this is the most useful item on my loading bench next to calipers. Everyone should have a case gauge made by there smith if you have a new barrel put on.”
Forum member Lawrence H. has stub gauges made with his chamber reamers for each new barrel. He has his smith cut a port in the stub steel so Lawrence can actually see how the bullet engages the rifling in a newly-cut chamber. With this “view port”, one can also see how the case-neck fits in the chamber. Lawrence tells us: “My stub gauges are made from my barrels and cut with my chamber reamers. With them I can measure where my bullets are ‘touching the lands’ and shoulder bump dimensions. This is a very simple tool that provides accurate information.” To learn more about stub gauges, read this Forum Thread. The photos above and below show Lawrence’s stub gauges:
On January 13, 2014, Winchester Ammunition will roll out new products during Media Day at the Range (held at the Boulder City Range outside Las Vegas, NV). We’ll have reporters on hand to check out new ammo options and new hardware from other manufacturers. Here’s a sneak preview of some new products that will be unveiled on Monday. In the box below you can scroll though Winchester’s 2014 new products, which include Winchester Match Rifle Ammo (.223 Rem, 6.5 Creedmoor, .308 Win, .338 LM) Win3Gun ammunition, Win1911 cartridges, new VarmintX ammo, and the new Long Beard XR and Defender shotgun ammo.
To learn more about these new items and other products visit Winchester.com. There you’ll find the latest product new, Information on Rebates and Special offers, plust a free online Ballistics Calculator.
It’s been a long time coming, but we are finally starting to see supplies of Winchester’s 17 Winchester SuperMag (17 WSM) rimfire ammunition, along with factory rifles chambered for the fast little 17 WSM cartridge (it runs up to 3000 fps). Leading the way among new 17 WSM firearms is a hot little rifle from Volquartsen Custom. This new Volquartsen semi-auto 17 WSM will be unveiled at SHOT Show next week in Las Vegas.
Volquartsen’s engineers tell us: “The 17 Winchester SuperMag was introduced at the 2013 SHOT Show. Soon after that we went to work on a semi-auto platform for this exciting round. Visit us in SHOT Show Booth #11329 to find out more about this exciting new rifle.”
About the 17 WSM
17 WSM semi-auto prototypes have been built and tested. Volquartsen will begin taking orders at the 2014 SHOT Show. The initial release will feature a laminated wood stock, stainless steel receiver and a stainless steel bull barrel.
Standard magazine capacity will be 8 rounds.
The rifle will utilize a direct blowback action.
We are pursuing additional stock options as well as options for a lightweight version of the rifle, however there is no anticipated release date for either.
The 17 WSM cartridge necessitates a different action than our 17 HMR rifles. Unfortunately, 17 HMR rifles cannot be converted to 17 WSM.
New 3000 FPS Rimfire Round Winchester has created a new, high-velocity 17-caliber rimfire cartridge, the .17 Winchester Super Magnum (aka .17 WSM). Winchester offers .17 WSM ammo with a choice of three bullet types: 20gr plastic tip (Varmint HV), 25gr plastic tip (Varmint HE), and a 20gr JHP (Super-X). The 20-grain varieties boast a 3000 FPS muzzle velocity, earning honors as the fastest Rimfire ammo ever made.
.17 Winchester Super Mag Specifications
Symbol
Sub Brand
Bullet Weight
Muzzle Velocity
S17W20
Varmint HV
20-gr Plastic Tip
3,000 fps
S17W25
Varmint HE
25-gr Plastic Tip
2,600 fps
X17W20
Super-X
20-gr JHP
3,000 fps
Winchester claims that all .17 WSM ammo types shoot much flatter than the .22 Win Mag and .17 HMR, while delivering 150 percent more energy than both. In addition, the .17 WSM “bucks the wind” better than any other rimfire ammo — exhibiting significant less horizontal drift at extended ranges.
New York SAFE Act Blocks Mail-Order and Online Ammo Sales Next Week
If you live in New York state, in one week you will no longer be able to purchase ammunition from an online vendor and have that shipped directly to your home or business. Effective January 15, 2014, New York’s SAFE Act mandates that all ammo sales be conducted through a face-to-face transaction with a registered New York “brick and mortar” ammunition dealer. Retailers are alerting New York-based customers that the final day to order ammo online will be January 14, 2014.
The SAFE Act requires that, starting January 15th, all New York ammunition purchases be made face-to-face, with buyers subject to background checks. At this point, no online retailer has announced a procedure that will allow online ammo sales to continue for New Yorkers. Online sales are not outlawed per se, but the ammo would somehow have to be shipped to a New York-based ammunition dealer who would then conduct the requisite background checks.
In a communication with WGRZ-TV, NY State Police spokesperson Darcy Wells declared that two requirements will go into effect on January 15, 2014.
“The first is the law that requires all sellers of ammunition to register with state police and the second law that requires all ammunition transfers to take place face-to-face and be facilitated by a New York State ammunition dealer. These provisions will go into effect on [January 15, 2014],” Wells explained.
In addition, the SAFE Act requires background checks on purchasers of ammunition. However, at present, there is no system in place to do this:
“The SAFE Act law also provides that background check and record keeping requirements imposed on all retail sellers of ammunition are scheduled to take effect 30 days after the Superintendent of the New York State Police certifies that a statewide license and record database is created for such a process. That certification has not yet been made and the system is still being developed.” Read Related Story.
“Just like the rest of the SAFE Act, there are a lot of questions with no answers,” said Jack Taylor, who sells guns and ammunition in Batavia, NY. “We don’t really know how we’re gonna do it, because I don’t think they (State Police) know how their gonna do it… it may happen sometime later in the year, but nobody seems to know,” Taylor told WGRZ-TV
While several groups have filed lawsuits challenging various provisions of the SAFE Act, as of this writing, no legal ruling will forestall or block the ammunition sales restrictions from taking effect on January 15th. The New York State Rifle and Pistol Association (NYSRPA) is trying to restore New Yorkers’ rights to purchase ammunition from online vendors. To support that effort, AmmoMan.com is donating 2% of all New York orders to the NYSRPA to help fund legal expenses.
Applied Ballistics LLC has launched a completely updated website with many new features including an archive of FREE articles plus a full-featured online ballistics calculator. If you are interested in precision shooting, you should visit the “new and improved” Applied Ballistics website. Browse through the new content and try out the advanced Ballistics Calculator.
NEW Online Ballistics Calculator
There are many free online ballistics calculators, but the new Applied Ballistics web utility goes far beyond other web-based options. Bryan Litz states: “No ballistic solution can be more accurate than its inputs”. Accordingly, Applied Ballistics offers the most reliable BC data available — a built-in library of measured G1 and G7 BCs for over 200 bullets. The Online Ballistics Calculator also allows you to “offload” your results for use in the field in two ways. First, you can save a file for transfer to an Applied Ballistics Kestrel. (This process is supported with a ‘save profile’ option from the output page.) Alternatively, you can send the ballistics profile to Accuracy First DG to have a whiz wheel created.
The Online Ballistics Calculator has many “advanced” features. For example, you can enter sight scale factors to account for scopes which don’t track perfectly true, and also zero offsets which allows you to compensate for imperfect zeros. In addition, this is the first online ballistics program to provide dynamic WEZ (Weapon Employment Zone) analysis. This WEZ feature gives users the ability to calculate hit percentage on targets at a variety of ranges (and in various environments).
Bullet Data Files
The new website provides a number of detailed bullet data files. These data files include geometric dimensions, drag/BC data at multiple velocities, and detailed stability maps. The information is based on direct measurements and live fire testing conducted by Applied Ballistics.
Digital Media
The new Applied Ballistics website features a “digital library” of authoritative articles in PDF and eReader (Kindle, Nook) formats. You can download these FREE articles by clicking on the “Recreational” and “Professional” tabs at the top of Applied Ballistics Home Page, and then selecting “Recreational Articles” or “Professional Articles” from the pull-down menus.
Sample Ballistics Article Gyroscopic (Spin) Drift and Coriolis Effect
Most long range shooters are aware of the effects of gravity, air resistance (drag), and wind vectors on their bullets’ trajectory. Gravity, drag, and wind are the major forces acting on a bullet in flight, but they’re not the only forces. In this article, Bryan Litz explains some of the more subtle forces that influence a bullet’s flight.
Sample Professional Article 300 Winchester Magnum vs. 338 Lapua Magnum WEZ Analysis
The specific intent of this Weapon Employment Zone (WEZ) report is to compare the ballistic performance of the 300 Winchester Magnum to the 338 Lapua Magnum with several available ammunition types. Understanding how these weapons compare in terms of hit percentage is important in the context of modern military applications.
Special Projects
Applied Ballistics is involved in some advanced, special projects. The new website showcases some of these high end ballistics solutions. Bryan Litz notes: “We have an active ballistics laboratory, highly capable contractors and industry partners who all contribute to provide practical and accurate solutions for a range of recreational and professional applications.”
Texas is a haven for hunters and shooting enthusiasts, so we’re not surprised that the Lone Star State leads the nation in online ammo sales. However, you might be surprised that California, with its liberal, anti-gun politicians, is a close second. Yes, California was the second-most active source of online ammo purchases in 2013, according to statistics from LuckyGunner.com, one of the nation’s leading online ammo vendors. In fact, California was number one in 2012. For 2013, Texas edged California for the top spot, followed by Florida, Michigan, and (surprise) New York.
More Online Ammo Buyers are Using Mobile Devices (Tablets and Smart Phones)
More and more people are connecting to the internet via mobile devices. And, apparently, they are using those devices to shop for ammo. Luckygunner.com saw a significant increase in orders from mobile devices in 2013. Fully 22.7% of Luckygunner’s visits were made via mobile devices in 2013, compared to 18.8% in the preceding year. AccurateShooter.com has seen a similar rise in the number of visitors connecting to our site via mobile devices (particularly smartphones).
Robert Whitley of AR-X Enterprises has a new .30-caliber cartridge for AR-platform rifles. The new 30 ARX is based on the 6.5 Grendel parent case necked-up to .30 caliber. The 30 ARX mag-feeds flawlessly in an AR15, while offering excellent accuracy, good velocity, and serious knock-down power. Compared to a 300 AAC Blackout (300 BLK), the new 30 ARX holds much more powder so it can push bullets faster and harder. Whitley’s 30 ARX boasts 57% more case capacity than a 300 Blackout. As a result, the 30 ARX outperforms the 300 BLK by a large margin. In a 20″-barreled AR, the 30 ARX can drive a 125gr bullet at 2500+ fps, or launch a heavier 150gr bullet at 2400+ fps:
30 ARX Loads
H4198, CCI BR4 Primers,
Necked-up Lapua 6.5 Grendel Brass:
2419 FPS: 28.0 gr. H4198, Nosler 125gr Ballistic Tip Hunting Bullet (2.260″ OAL)
2517 FPS: 29.0 gr. H4198, Nosler 125gr Ballistic Tip Hunting Bullet (2.260″ OAL)
2363 FPS: 28.0 gr. H4198, Sierra 150gr BT Hunting Bullet (2.240″ OAL)
2441 FPS: 29.0 gr. H4198, Sierra 150gr BT Hunting Bullet (2.240″ OAL)
Robert Whitley explains the advantanges of the 30 ARX for AR-platform rifles: “The 30 ARX is a cartridge designed from the get-go for use in an AR-15. The case length and chamber design of the 30 ARX are optimal. The case allows the use of many of the favorite .30-cal bullets, magazine fed out of an AR-15 and backed by some real power. Brass is easy to make with a simple necking-up process. Neck it up, load it and go shoot. Good 6.5 Grendel brass is readily available, and we have 30 ARX dies available.”
Watch One-Step Process for Forming 30 ARX Case from 6.5 Grendel Brass
With the ability of Lapua 6.5 Grendel brass to handle stout loads, the 30 ARX cartridge delivers 30-30 Winchester-class performance, from the modern, semi-auto AR-15 platform. The 30 ARX cartridge has sufficient case capacity to push popular .30-cal bullets fast and accurately even at moderate chamber pressures. The case has approximately 38 grains water capacity. With its 57% greater capacity than a 300 Blackout, the 30 ARX is a more versatile, more powerful hunting cartridge (at least when loaded to supersonic speeds). With 150gr bullets running in the 2500 fps range, the 30 ARX offers impressive knockdown power in a cartridge that fits an AR-15 magazine.
30 ARX Cartridge OAL mag-feeds perfectly with a variety of .30-cal bullets.
Longer, heavier long-range bullets (with longer COAL) can be single-loaded.
Lapua 6.5 Grendel brass is excellent, strong brass, that is readily available.
AR-X Enterprises now offers die sets for the 30 ARX.
The neck up process is very easy. Simply lube the inside of the necks of 6.5 Grendel brass, run the brass through your re-size die (with .30 Cal expander in place).
Works well with a lot of commonly available powders such as: Hodgdon 4198, Vihtavouri N130, Accurate LT-32, Accurate AA1680.
SHOT Show 2014 kicks off in two weeks in Las Vegas. While at SHOT Show next month, we plan to get the “inside scoop” on new bullet designs from Berger, Hornady, Lapua, Nosler and Sierra.
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 seven different 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.
Norma is making a big push to expand its presence in the North American market. As part of this effort, Norma is introducing seven (7) new types of cartridge brass for 2014. We’re pleased to report that Norma-USA will be importing top-quality brass for the 6.5 Grendel, and 6.5 Creedmoor, two popular target cartridges. In addition, for 2014, Norma will offer 7mm RUM, 7mm Blaser Magnum, 300 AAC Blackout (300 BLK), .300 RUM, and the .338 Blaser Mag. The Norma brass we have shot in other chamberings (6 PPC, 6mmBR Norma, 6XC, .243, 7mm RSAUM) has all been excellent, giving good accuracy. Case weights were very consistent and the neck-wall thickness was very uniform, particularly with the PPC and BR brass. The new 300 BLK brass is an important offering for AR shooters. (NOTE: You can also make 300 BLK cases from Norma or Lapua .221 Fireball brass).
Though the annealing “shadow” may not be as visible as with Lapua brass, the case necks of Norma brass cartridges are indeed annealed near the end of the manufacturing process. This assures more consistent neck tension — something critical to accuracy. Most of the new cartridge brass offerings should be be available at vendors by early April, 2014. You can get Norma brass from Bullets.com, Grafs.com and Midsouth Shooters Supply, as well as many other online vendors.
New Norma-USA Brass Offerings for 2014:
6.5 Grendel
6.5 Creedmoor
7mm RUM
7mm Blaser Magnum
300 AAC Blackout (300 BLK)
.300 RUM
.338 Blaser Magnum
Product Tip from EdLongrange. We welcome reader submissions.