January 12th, 2017

Try Barnes, Berger, and Nosler Bullets with Sample Packs

Bullet Proof Samples

Bullet Proof SamplesBullet Proof Samples offers 12-count packs of big-name bullets. This lets you try out many different bullet types without forking out big bucks for larger 50-ct or 100-ct boxes. Currently, Bullet Proof Samples offers projectiles from Barnes, Berger Bullets, and Nosler. The sample packs range in price from $5.99 (for 22-cal varmint bullets) to $17.49 (for a .30-Cal Barnes LRX). The Berger Bullets sample packs run $6.99 to $10.49, with the larger 7mm and 30-cal bullets at the upper end of the range. On a per-bullet cost basis, it’s still much cheaper to purchase a “normal” 100-ct box, but the sample packs let you “test before you invest.”

Berger’s Michelle Gallagher tells us: “We receive frequent feedback from shooters who are looking for bullets in small pack quantities so that they can test different bullets without the expense of buying full boxes. Bullet Proof Samples… has done an exceptional job of addressing that concern. Bullets are packaged in blister packs, so they can be clearly seen. Each pack contains 12 bullets. They offer Nosler, Barnes and Berger in a variety of weights and calibers. Bullet Proof Samples is not a Berger Bullets LLC company, but we are supportive of their efforts[.]”

Story idea by EdLongrange.
Permalink Bullets, Brass, Ammo, Reloading No Comments »
January 5th, 2017

Berger Bullets Joins Nammo Group — How This Benefits Shooters

Berger Joins Nammo group Lapua Vihtavuori

Berger Bullets is becoming part of the Nammo Group, joining Lapua, Vihtavuori, and SK Ammo. This is big news, as it combines one of America’s leading bullet-makers with a major global enterprise that produces superior loaded ammunition, powder, bullets, and brass. This is potentially a boon for shooters as Nammo’s resources will help Berger increase production capacity, expand its line of products (including loaded ammunition), develop new bullet types, and invest in new, advanced machinery that should increase output and efficiency. In addition, we do expect to see new lines of loaded ammo combining Lapua brass with Berger match bullets. That combo will be tough to beat. Overall, this is a very positive development for Berger which will be able to call upon Nammo’s engineering expertise and advanced production technologies. It’s also a great thing for shooters, who can expect improved availability of the most popular Berger projectiles.

Berger Joins Nammo group Lapua VihtavuoriBerger Will Be Leaving California
As part of the acquisition of Berger Bullets by the Nammo Group, Berger plans to relocate its operations, moving its factory from the current Fullerton, California location. Berger will definitely be leaving California in the future.

Eric Stecker, Berger’s President, says the exact timing of the move has not yet been set, nor has the location been chosen. Arizona is high on the list of potential sites, but Berger is considering other states as well. Once the new factory location is determined, Eric says he expects the move to be completed “by December 2018 at the latest”.

In this exclusive AccurateShooter.com interview, Berger President Eric Stecker talks about Nammo’s acquisition of Berger Bullets and explains how that will bring about important positive changes, including increased production capability.

Notice from Berger Bullets

We take great pride and tremendous pleasure in announcing that Berger Bullets has joined forces with the Nammo Group. This Norwegian/Finnish corporation control many premium brands including Lapua (Brass, Bullets, Ammo), Vihtavuori Powder, and SK Rimfire Ammunition.

The joining of Berger Bullets with these world renowned, premium brands ushers in a new era of quality, performance and product availability for the discerning shooter. Today, under the Nammo Group ownership, we join three other companies that share a strong passion and commitment to precision shooting performance. We are very excited to join forces with these premium quality brands, which are committed to precision and quality.

Nammo Resources Will Help Berger Grow
The Nammo Group brings to Berger Bullets a level of support that is rivaled by few and bested by none. Nammo will support us in many areas including production capability expansion, advanced engineering, innovative product development, and the opportunity to share technology between all of these top quality brands.

Our immediate goal is to significantly improve the availability of Berger products. Throughout our history the demand for Berger Bullets has exceeded our capacity even as we’ve grown our output capabilities numerous multiples over the last few decades. Our first obligation to our customers is to improve the availability while we remain committed to our highest level of quality in the industry. Much of what has made Berger Bullets successful will remain unchanged. Bryan Litz is developing more great bullets for Berger and our technicians will still be answering your emails and calls.

Our website will remain at www.BergerBullets.com and all methods of contacts will remain the same for now. As we run across any changes, we’ll make sure we keep you updated on our website and through emails. So please, keep your information current on your email subscription and we promise to keep you posted.

Berger Joins Nammo group Lapua Vihtavuori

The Nammo Group, www.Nammo.com, supplies high performance products to the aerospace & defense industry. Its core businesses are military and commercial ammunition; shoulder-fired systems; rocket motors; and demilitarization services. Nammo has 2,100 employees located in 12 countries.
Permalink - Videos, Bullets, Brass, Ammo, News 13 Comments »
December 27th, 2016

Sierra Bullets — How It All Started Nearly 70 Years Ago

Sierra Bullets Carroll Pilant MatchKing Bullet SMK Bullet-making Jacket
Here is the original Sierra manufacturing facility in Whittier, CA.

Sierra Bullets — How It Got Started

Report Based on Story by Carroll Pilant, Sierra Bullets Media Relations Manager
What became Sierra Bullets started in the late 1940s in a Quonset hut in California. In 1947, three aircraft machinists, Frank Snow, Jim Spivey, and Loren Harbor, rented machine space to produce rivets for the aircraft industry along with fishing rod guides and rifle front sight ramps. In the post-WWII years, sport shooting was becoming hugely popular, but quality ammunition was in short supply. For shooting enthusiasts, reloading was the solution to the ammo supply shortage. Snow, Spivey, and Harbor recognized this, creating Sierra Bullets to help fill the void. Before long, they were selling a 53-grain match bullet to the Hollywood Gun Shop. These bullets are still in production today as the Sierra #1400 53-grain MatchKing.

A few years later, an accomplished competitive shooter named Martin Hull joined Sierra. Hull helped develop new bullet types and served as manager of Sierra’s ballistics laboratory for nearly 20 years. With Hull’s help, Sierra’s output grew rapidly. The California company outgrew several locations before it moved to a large facility in Santa Fe Springs, CA, in 1963.

New Owners and New President in the Late Sixties
In 1968, the Leisure Group bought Sierra Bullets. Other Leisure Group companies included Lyman Reloading, High Standard Manufacturing Company, Yard Man, Thompson Sprinkler Systems, Flexible Flyer Sleds, and Dodge Trophies (Which made the Oscar and Rose Bowl Game trophies).

Soon after purchasing Sierra, the Leisure Group hired Robert Hayden as President and General Manager. Hayden was a mechanical engineer who had worked for Remington Arms. Hayden remained the president of Sierra for 42 years, retiring in 2012 when Pat Daly became president.

Sierra Moves to Missouri
In 1990, Sierra relocated to Sedalia, Missouri, where the company remains today. Sierra Bullets now employs over 100 people including five full-time ballistic technicians who answer daily reloading and firearms questions by both phone and e-mail.

Sierra Bullets Carroll Pilant MatchKing Bullet SMK Bullet-making Jacket

The Making of MatchKings — How Sierra Produces SMKs

All Sierra bullets begin life as a strip of gilding metal, an alloy consisting of 95% copper and 5% zinc. To meet Sierra’s strict quality requirements, the gilding metal requires three times more dimensional and quality control standards than is considered standard in the copper manufacturing industry.

Sierra Bullets Carroll Pilant MatchKing Bullet SMK Bullet-making Jacket

A blanking press stamps out a uniform disc and forms the cup that will be drawn into the MatchKing jacket. The cup is then polished and sent to a draw press to be drawn into a jacket that is longer than needed for the future MatchKing, thus allowing for the trim process. Press operators constantly check concentricity to make sure we have only quality jackets. The jackets then go to a trimmer where they are visually inspected again.

Sierra Bullets Carroll Pilant MatchKing Bullet SMK Bullet-making Jacket

After being polished a second time, the jacket travels to the bullet press. In the meantime, 80-pound lead billets are being extruded into lead wire for the cores where great care is taken so that the core wire is not stretched. The core wire is lightly oiled before continuing to the bullet press to be swaged.

The lead core wire and trimmed jacket meet at the bullet press where the first stage forms a boattail on the jacket. The lead core is then formed on top of the bullet press and fed down into the jacket. In one stroke of the press, the MatchKing is formed.

Sierra Bullets Carroll Pilant MatchKing Bullet SMK Bullet-making Jacket

Quality control technicians pull samples from each lot of MatchKings to make sure they meet Sierra’s stringent standards. Samples are then sent to Sierra’s 300-meter underground test range (shown below) to be shot for accuracy on mechanical mounts referred to as “unrestricted return to battery rests” that Sierra designed and built in-house.

Sierra Underground Tunnel test facility Sedalia, Missouri

After inspection, the bullets are placed in the familiar green box along with reloading labels. They are then shrink-wrapped and shipped all over the world.

Permalink Bullets, Brass, Ammo, News 1 Comment »
December 12th, 2016

Powder Valley’s $20,000 Giveaway — 12 Days of Christmas

Powder Valley Inc. Giveaway 12 days of Christmas Ammo Bullets Press Lapua Sierra Berger

Are you feelin’ lucky? Well here’s your chance to win. Over the next twelve days (through December 23, 2016), Powder Valley is giving away a total of $20,000 worth of products from big name suppliers. That’s an average of $1,667 worth of product prizes every day. This is top-of-the-line stuff, including Powder from Accurate, IMR, Ramshot, and Vihtavuori, Bullets from Berger, Berry’s, Hornady, Lapua, and Sierra, Brass from Lapua, Hornady and Nosler, Ammo from Hornady, Nosler, Lapua, and Silver State Armory. Each day there will be a new set of prizes. Today’s prize is a Hornady reloading press.

It’s easy to qualify to win one of the Daily Giveaway prize packages. Simply visit Powder Valley’s Facebook Page, and make a comment on the featured Daily Giveaway Post. You don’t have to fill out any forms, but you must have a Facebook account so you can comment. Each day the folks at Powder Valley will select winners from among the visitors who commented. Today (Dec. 12th) there will be one winner of the Hornady Press. In days ahead there can be multiple daily winners — as many as 20 to 30 per day. NOTE: You can enter multiple times by commenting on multiple days, but sorry, if you win, you are no longer eligible.

Powder Valley Daily Giveaway

The Powder Valley 12 Days of Christmas promotion starts today, December 12th, 2016. To enter, you must visit the Powder Valley Facebook Page. Once there, scroll down to find the Giveaway of the Day. Today’s Giveaway is a Hornady Press. Look for the post shown below. You need to comment on that post to be entered. Winners will be selected by lottery from those who comment. Each successive day through December 23rd, there will be another product giveaway post.

Powder Valley Inc. Giveaway 12 days of Christmas Ammo Bullets Press Lapua Sierra Berger

To be entered in this Powder Valley Contest, you need to go to the Powder Valley Facebook Page and post a Facebook Comment for the Daily Prize story. The give-away for today, December 12th, is a Hornady Lock-N-Load AP Press. NOTE: You need to post your comment on Powder Valley’s Facebook Site, NOT HERE. And you need to comment each day to be entered in that particular day’s contest. To have repeat chances to win you need to comment on multiple days. Got it?

Permalink Bullets, Brass, Ammo, Hot Deals No Comments »
October 21st, 2016

Nosler Introduces High-BC, Closed-Meplat RDF Match Bullets

Nosler RDF Bullet compound hybrid ogive tangent secant

Nosler has introduced a new line of RDF™ (Reduced Drag Factor) bullets that feature very high BCs, hybrid-type ogives, and tight, factory-closed meplats. Based on initial specs, Nosler’s new RDF bullets should be very competitive match projectiles for their respective bullet weights. Nosler claims its new RDF bullets have “the highest BCs and smallest, most consistent meplats of any hollow-point match bullet line on the market.” RDF projectiles will be initially offered in four calibers: .224, 6mm (.243), 6.5 mm (.264), and .308.

NEW Nosler RDF Bullets:

· 22 Cal 70 grain — G1 Ballistic Coefficient 0.416 | G7 Ballistic Coefficient 0.211
· 6mm 105 grain — G1 Ballistic Coefficient 0.571 | G7 Ballistic Coefficient 0.280
· 6.5mm 140 grain — BC field verification in process
· 30 Cal 175 grain — G1 Ballistic Coefficient 0.536 | G7 Ballistic Coefficient 0.270

High-BC RDF Bullets Feature Compound (Hybrid-type) Ogive Profiles
Nosler designed RDF bullets to have very high BCs for flatter trajectories and reduced wind drift. Nosler achieved high BCs by adopting a modern hybrid-type compound ogive, which bridges traditional tangent and secant bullet shapes. Another benefit of the compound (hybrid-type) ogive, is that this shape is normally less sensitive to bullet seating depth than a pure VLD-style, secant ogive shape. That allows hand-loaders to seat off the lands and still get excellent accuracy, which can be maintained even as the throat moves out over time. RDF bullets also feature a long boat-tail for aerodynamic efficiency.

Nosler RDF Bullet compound hybrid ogive tangent secant

Factory-Closed Meplats — No More Trimming and Pointing Tips
Compared to conventional match bullets, Nosler’s RDF bullets look quite different because the tips have been tightly closed up at the factory. Nosler claims a a 40% average reduction in meplat size vs. conventional hollow-point bullets. With Nosler doing the work on the tips, hand-loaders no longer need to point and trim tips, a laborious task done to improve BC and, more importantly, to make BCs more consistent for every bullet in the box. Consistent BC translates to reduced vertical spread at long range.

John Nosler Talks about RDF Bullets:
“Long-range competitive shooting [is] one of the fastest-growing shooting activities in the world, and quality bullets are the cornerstone of the sport” said John Nosler, Executive V.P. for the company. “Our engineers were challenged with delivering a bullet that would drastically reduce aerodynamic drag and increase ballistic consistency, providing shooters with an indisputable advantage. What we achieved is a leap in match bullet technology….”

Permalink Bullets, Brass, Ammo, New Product 15 Comments »
October 2nd, 2016

Norma Factory Tour Video is a “Must-Watch” for Hand-Loaders

Norma factory ammo production video

Guys — honestly, if you do anything today on this site, watch this video. You won’t be disappointed. Guaranteed. This is a very informative (and surprisingly entertaining) video. Every serious hand-loader should watch this video to see how cartridge cases are made. Your Editor has watched the video 5 times now and I still find it fascinating. The camera work and editing are excellent — there are many close-ups revealing key processes such as annealing and head-stamping.

VERY Informative Video Show Cartridge Brass and Ammunition Production:

Norma has released a fascinating video showing how bullet, brass, and ammunition are produced at the Norma Precision AB factory which first opened in 1902. You can see how cartridges are made starting with brass disks, then formed into shape through a series of processes, including “hitting [the cup] with a 30-ton hammer”. After annealing (shown at 0:08″), samples from every batch of brass are analyzed (at multiple points along the case length) to check metal grain structure and hardness. Before packing, each case is visually inspected by a human being (3:27″ time-mark).

The video also shows how bullets are made from jackets and lead cores. Finally, you can watch the loading machines that fill cases with powder, seat the bullets, and then transport the loaded rounds to the packing system. In his enthusiasm, the reporter/narrator does sometimes confuse the term “bullets” and “rounds” (5:00″), but you can figure out what he means. We definitely recommend watching this video. It’s fascinating to see 110-year-old sorting devices on the assembly line right next to state-of-the art, digitally-controlled production machinery.

Video tip by EdLongrange. We welcome reader submissions.
Permalink - Videos, Reloading 1 Comment »
July 25th, 2016

Bargain Finder 45: AccurateShooter’s Deals of the Week

Accurateshooter Bargain Finder Deals of Week

At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.

1. Amazon — Caldwell Long Range Target Camera System, $367.70

Amazon Caldwell Precision Long Range Target System Cam Camera

Forum members have purchased this Caldwell Target Cam System and they’ve found that it works reliably, providing a clear signal to any WiFi-enabled mobile device (smartphone, iPad, Laptop). One member specifically tested the unit at 1000 yards and it functioned fine. NOTE: This system does NOT have a zoom camera lens, so you need to position the camera within 10 yards or so of the target. But if you place it to the side a bit, this shouldn’t be a problem. This system comes with a nice, fitted carrying case that holds camera, transceivers, antennas, and stands. You get a very capable system for under $370.00 (Amazon price includes free shipping for Prime members). You can also get this system from Midsouth for $357.02 (shipping extra).

This video shows system set-up and actual Target Cam output on a WiFi-enabled tablet:

2. Grafs.com — $99.99 Electronic Earbud Headset 31dB NRR

Walker Razor-X Headset Earbuds Electronic

This is a totally new kind of hearing protection. Walker’s Razor-X and Razor-XV operate like electronic muffs — allowing you to hear commands and conversations while still blocking gunshots and other loud noises. The Razor-X combines a collar unit (containing the electronics) with retractable, foam-tipped ear buds. Unlike conventional earmuffs, the Razor-X system doesn’t interfere with your cheek weld. The patent-pending earbuds allow the user to be in loud environments without damaging their hearing, providing an impressive 31dB of noise reduction.

Walker Razor-X Headset Earbuds Electronic

The kit includes two different styles of noise-reducing foam tips (in various sizes) to ensure a good fit for maximum noise reduction. The Razor-X is equipped with an auto-shut off after 4 to 6 hours. An AC wall adapter with USB port and a one-meter micro USB cord is provided.

TECH NOTE: Grafs.com shows a 29dB NRR in the product title. However, the manufacturer (and all other retailers) list a 31dB Noise Reduction Rating for the Razor-X and Razor-XV.

3. EuroOptic — Leupold 12-40×60 Spotter + Red Dot + SLICK Rail

Leupold Spotting Scope MK4 Slick Rail Delta-Point

Here’s a super deal on a premium Tactical spotter package. Right now you can get a Leupold MK4 TMR 12-40x60mm spotting scope, PLUS a Delta-Point Pro 2.5 MOA Red-dot (for quick aiming), PLUS a Badger SLICK mount for under $1500.00. The Leupold MK4 12-40 spotter sells for $1399.00 by itself elsewhere. So this is like getting the Delta-Point and SLICK mount for $100.00 (or free — read about $1400 special below). CLICK HERE for Package Deal.

The unique SLICK mount is definitely worth having. This lets you add a laser rangefinder or other accessory and have the LRF aligned (collimated) perfectly with your spotting scope.

Jason tells us: “This is the best value I have seen on gear in a long time. On top of that, we are offering AccurateShooter.com readers a FURTHER discount to $1400 shipped for pre-ordering (pre-payment required)”. NOTE: to get the Special $1400.00 Pre-Order price, call EuroOptic at (570) 368-3920 and ask for Jason Baney.

4. Sportsmans Outdoor — Ruger American Predator, $359.99

AccurateShooter Deal Week Sale Rugers American Predator 6.5 Creemoor Tactical

Here’s a nice little 6.5 Creedmoor rifle from Ruger with good features at a very attractive price, just $359.99. This Predator model features a heavier-contour 22″, 1:8″-twist barrel threaded 5/8″-24 at the muzzle for brake or suppressor. The action, which features a 70° three-lug bolt, and Picatinny-style scope rail, sits in an aluminum bedding block. The trigger is crisp and adjusts down to 3 pounds. The 6.5 Creedmoor chambering is well-suited for both hunting and tactical/practical games. The rifle weighs 6.5 pounds without optic. For real tactical work you’ll want to replace the stock — but with only $360 into the gun you can easily afford a better stock/chassis.

5. MidwayUSA — Magpul 700 Black Stock, $219.99 on Sale

AccurateShooter Deal Week Sale Magpul Rem 700 Hunter Stock bedding block

The new Magpul Remington 700 Hunter Stock offers an aluminum bedding block, plus adjustable length of pull and comb height. Compatible with all Remington 700 Short Actions, this stock requires no bedding and is a true “drop-in” solution. Also available (separately) is Magpul’s Bolt Action Magazine Well, which allows the rifle to be used with detachable box magazines without the need for custom inletting. NOTE: to see the $219.99 Sale price, you must select the black version in your Midway USA Shopping Cart. This price includes stock only; magazine and and bottom metal are NOT included.

Free Floating: Free-floats Remington barrels including aftermarket profiles up to a Medium Palma
Bottom Metal: Compatible with all stock Remington bottom metal
Weight: 2.9 lbs without action and bottom metal

6. Natchez Shooters Supply — 325 Rounds .22 LR Ammo, $22.99

AccurateShooter Deal Week Sale Bargain .22 LR Federal Bulk Ammo

This Federal .22 LR ammo is just 7 cents per round — the kind of pricing on bulk rimfire ammo we used to see in the “good old days”. Act quickly, this Federal .22 LR Ammo deal won’t last long. Also, note that seller Natchez has a 2-piece maximum order per day.” So you may order two boxes per day, which will total 650 rounds. The bullets are 40 grains, solid lead.

7. Cabela’s — Lyman TurboSonic Cleaning Machine, $49.99

Lyman Turbosonic Cleaning Machine Week Deal Bargain

If you have brass or small parts to clean an ultrasonic cleaning machine really comes in handy. This Lyman machine was a good deal at $69.99 before. Now it is an awesome deal at $49.99 from Cabela’s. Plus you may even be able to get it for less. One buyer said you can get this item for $44.99 including shipping if you use code “16CAVE” at check-out. Worth a try.

8. Natchez — Hornady 22-Cal Varmint Bullets, $9.99 Per 100

AccurateShooter Deals of the Week Hornady VArmint .223 .224 bullets 55 grain

Headed out for a varmint safari soon? Need inexpensive bullets for your .223 Rem or 22-250? Then check out this deal on Hornady 55-grainers from Natchez. Get 100 Soft Point .224-Caliber FB bullets for just $9.99. At that price, it doesn’t hurt so much when you shoot 1000+ rounds over a weekend. With good expansion, these bullets work great on prairie dogs and other small critters. Note: These sale bullets ship in a bag, not the box as shown.

Permalink Gear Review, Hot Deals, Optics No Comments »
June 2nd, 2016

Hornady Video Shows How Ammunition is Made

Hornady Manufacturing

Hornady ManufacturingIf you wonder how ammo is made, starting with raw metal, check out this video from Hornady. It shows how bullet jackets are formed from copper, followed by insertion of a lead core. The jacket is then closed up over the core with the bullet taking its final shape in a die (a cannelure is applied on some bullet types). Next the video shows how cartridge brass is formed, starting with small cups of brass. The last part of the video shows how cases are primed and filled with powder, and how bullets are seated into the cases, using an automated process on a giant assembly-line. CLICK Link below to watch video:

At its 100,000+ square foot factory in Grand Island, Nebraska, Hornady produces millions of rounds of ammunition annually. The Grand Island factory is open for tours Monday through Thursday. Hornady Manufacturing, which now boasts over 300 employees, was founded by Joyce Hornady in 1949. The business is currently run by his son Steve Hornady who took over after his father’s death in a plane crash in 1981.

Permalink - Videos, Bullets, Brass, Ammo 3 Comments »
May 10th, 2016

Lyman Releases 50th Edition Reloading Handbook at NRA Show

lyman reloading handbook 50th Edition Ideal manual hand loading

The 50th Edition of the Lyman Reloading Handbook is here — and it’s bigger and better than ever. This 50th Anniversary Edition, the first to be produced in full color, includes more load data, and covers more cartridge and bullet types than ever before. This handbook has a strong heritage, starting with the Ideal reloading manuals from the early 20th Century. For more than a century the Ideal Handbook (and later) Lyman Handbooks have been popular and reliable data sources for hand-loaders. (In 1925, Lyman purchased Ideal Reloading Products, which produced the Ideal reloading handbooks.)

View Lyman 50th Anniversary Handbook at the NRA Annual Meeting in Louisville
The full-color Lyman 50th Edition will be available for the first time at the upcoming NRA Annual Meeting in Louisville, Kentucky on May 19-22, 2016. The Hardcover Edition (item #9816050) is priced at $39.98, while the Softcover Edition (item #9816051) retails for $29.98. Notably, Lyman will donate $1.00 to the NRA for every Lyman 50th Edition Reloading Handbook sold during the first year of its publication.

NRA Annual Meeting & Exhibits

Lyman 50th Edition Handbook Features and Highlights:

• New Cartridges in 50th Edition: 17 Hornet, 6.5 Grendel, 6.5 Creedmoor, 6.5-284, 26 Nosler, 28 Nosler, 300 Blackout, 300 RCM, 338 RCM, 450 Bushmaster, 458 SOCOM, 50 Beowulf

• Expanded Selection of Bullets: Barnes, Hornady, Remington, Sierra, Speer, Swift and Winchester plus full selection of cast bullets

• Feature Articles by Top Gun Writers and Firearm Industry Experts

• “Barrels – Looking into the Unknown” by Ryan Newport

• “Advanced Case Preparation Techniques” by John Haviland

• “What is a Ballistic Coefficient and How Do You Use It?” by Dave Emary and Lane Pearce

• “The History of Modern Lyman Handbooks” by Ed Matunas, Ken Ramage and Tom Griffin

Permalink New Product, Reloading 4 Comments »
April 28th, 2016

How Do Bullets Fly — Mysteries Revealed by German Ballistician

Bullet External Ballistics
“The overturning moment MW tends to rotate the bullet about an axis, which goes through the CG (center of gravity) and which is perpendicular to the plane of drag….

Ruprecht Nennstiel, a forensic ballistics expert from Wiesbaden, Germany, has authored a great resource about bullet behavior in flight. Nennstiel’s comprehensive article, How Do Bullets Fly, explains all the forces which affect bullet flight including gravity, wind, gyroscopic effects, aerodynamic drag, and lift. Nennstiel even explains the rather arcane Magnus Force and Coriolis Effect which come into play at long ranges. Nennstiel’s remarkable resource contains many useful illustrations plus new experimental observations of bullets fired from small arms, both at short and at long ranges.

Shadowgraph of .308 Winchester Bullet

Bullet External Ballistics

A convenient index is provided so you can study each particular force in sequence. Writing with clear, precise prose, Nennstiel explains each key factor that affects external ballistics. For starters, we all know that bullets spin when launched from a rifled barrel. But Nennstiel explains in greater detail how this spinning creates gyroscopic stability:

“The overturning moment MW tends to rotate the bullet about an axis, which goes through the CG (center of gravity) and which is perpendicular to the plane of drag, the plane, formed by the velocity vector ‘v’ and the longitudinal axis of the bullet. In the absence of spin, the yaw angle ‘δ’ would grow and the bullet would tumble.

If the bullet has sufficient spin, saying if it rotates fast enough about its axis of form, the gyroscopic effect takes place: the bullet’s longitudinal axis moves into the direction of the overturning moment, perpendicular to the plane of drag. This axis shift however alters the plane of drag, which then rotates about the velocity vector. This movement is called precession or slow mode oscillation.”

Raise Your Ballistic IQ
Though comprehensible to the average reader with some grounding in basic physics, Nennstiel’s work is really the equivalent of a Ph.D thesis in external ballistics. You could easily spend hours reading (and re-reading) all the primary material as well as the detailed FAQ section. But we think it’s worth plowing into How Do Bullets Fly from start to finish. We suggest you bookmark the page for future reference. You can also download the complete article for future reference and offline reading.

CLICK HERE to download “How Do Bullets Fly” complete text. (1.2 MB .zip file)

Photo and diagram © 2005-2009 Ruprecht Nennstiel, All Rights Reserved.

Permalink - Articles, Bullets, Brass, Ammo, Tech Tip No Comments »
March 28th, 2016

Bargain Finder 28: AccurateShooter’s Deals of the Week

Accurateshooter Bargain Finder Deals of Week

At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.

1. Midsouth — Major Brand Blem Bullets (.204 to .50 Cal)

Right now Midsouth Shooters Supply is running a big sale on Major Brand Blem Bullets. You can save 50% or more on a wide variety of bullet types and calibers. Whatever your preference — Poly Tips, BT Hollowpoints, Soft-Points — you’ll find something on sale. In all 42 types of bullets, from .22 to .50 caliber, are deeply discounted. Here are just a few of the great deals we found:

.204 (20 Cal) 45gr SP, $17.06 per 100
.224 (5.56 mm) 55gr SP, $9.53 per 100
.243 (6 mm) 87gr BTHP, $15.08 per 100
.264 (6.5 mm) 120gr Poly Tip, $18.54 per 100
.308 (7.62 mm) 195gr BTHP, $22.96 per 100
.338 (8.58mm) 225gr Poly Tip, $27.22 per 100

2. Grafs.com — Magnetospeed Sporter $179.99

Deals of Week RCBS Rock Chucker Supreme Kit

If you have been waiting to get a Magnetospeed… wait no longer. Priced at just $179.99 at Grafs.com, the Magnetospeed Sporter model costs less than half as much as Magnetospeed’s V3 models. This chronograph attaches directly to your barrel so you don’t have to go downrange to position tripods and set up skyscreens. For most people the Sporter Model contains all the features they need. Using Magnetspeed’s XFR adapter (sold separately), data can be transferred easily from the display module to your mobile device. READ Magnetospeed Sporter Review.

3. Bruno’s — Once-Used Nightforce Scopes, Save Hundreds

Bruno Shooters Nightforce competition scope sale optics

Bruno Shooters Supply currently offers six (6) Nightforce targets scopes that were used one-time-only at the Cactus Benchrest match. These were “previewed” for evaluation on a rifle but are virtually brand new. And yes they come with full factory warranty. Choose either the 15-55x52mm Comp model or the NEW fixed-power 42x44mm scope, with either Fine Cross Hair (FCH) or Target Dot Reticle. You can save some hundreds on these scopes. For example, the 15-55X scope is offered at $2125.00, compared to the $2352.00 normal price at other vendors. That’s a $227.00 savings.

4. CDNN Sports — Ruger American Ranch Rifle (Tan), $389.99

Ruger American Ranch Rifle 5.56 .223 223 Remington Varmint Bolt Action

Here’s a nice little varmint rifle from Ruger with some nice features at a very attractive price, $389.99. This .223 Rem rifle features a 16.5″ hammer-forged barrel barrel threaded 1/2″-28 at the muzzle for brake or suppressor. The action, which features a 70° three-lug bolt, and Picatinny-style scope rail, sits in an aluminum bedding block. The crisp trigger adjusts down to 3 pounds. With a weight (before optics) of 6.1 pounds, this is a handy carry-around varminter.

5. Natchez — 300 Rounds .45 ACP in Can, $69.99 After Rebate

Federal Premium .45 ACP REbate Ammo Can

The classic .45 ACP is probably our favorite handgun cartridge for target work. Inherently accurate, the .45 ACP delivers big, easy-to-see holes on the target. Right now you can get 300 rounds of quality American Eagle 230gr .45 ACP FMJ ammunition for just $69.99 after the Federal Premium MFG Rebate. This Natchez .45 ACP Ammo Deal includes a rugged, lockable Federal Premium plastic Ammo Can.

6. Cabelas.com — Lyman Power Case-Prep Tool, $20.89

Lyman Case Prep Driver Power Tool

This Lyman cordless power tool is now just $20.89, marked down from $39.99. That’s a steal for a tool that handles most case-prep chores. The high-torque rechargeable driver runs at the correct speed for deburring and chamfering. The accessories have hex shafts that snap in and out of the driver (much like with a cordless screwdriver). The kit includes the power unit and seven (7) accessories: two case neck brushes, two double-ended primer pocket tools (large and small), an outside 45° neck-chamfer tool, an inside 30° neck-chamfer tool, and a combo standard/phillips screw-driver bit. Grab one for $20.89 at Cabelas.com.

7. MidwayUSA — Padded Scoped Rifle Case, $24.99

MidwayUSA Padded Rifle Case Sale Scoped

This 48″-long, thickly-padded gun case will hold most tactical-style rifles and hunting rifles. At a fraction of the cost of a big, cumbersome drag bag, this case may be all you need. The heavy duty padding is over 1″ thick on both sides to protect your rifle and optics investment from rough handling. A large pocket will hold a couple boxes of ammo and other accessories. We like this bag much better than the typical gun-store soft cases. It offers much better padding and more room for large scopes. It is on sale this week at MidwayUSA for just $24.99 in four colors: black, tan, OD green, and gray. In addition to the 48″ case shown, 40″ and 44″ versions are available.

8. Amazon — Two Rolls of 3″ Neon Target Stickers, $14.95

Red Orange Neon 3

We like these bright Neon 3″ target stickers. They are big enough to see easily at 600 yards, giving you a 1/2 MOA target center at that distance. For $14.95 at Amazon.com, you get 250 3″-diameter self-adhesive centers (125 targets per roll) that stick to almost any surface The high-contrast fluorescent red/orange color provides an excellent HI-VIZ aiming point, along with good contrast for bullet holes that fall within the 3″ circle. To help line up your reticle cross-hairs, the target centers feature black markers at 3, 6, 9, and 12 0’clock.

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March 21st, 2016

Bargain Finder 27: Accurateshooter’s Deals of the Week

Accurateshooter Bargain Finder Deals of Week

At the request of our readers, we have launched a “Deals of the Week” feature. Every Monday morning we offer our Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.

1. Defender Outdoors — Rem 700 .300 Win Mag M40, $639.99

Remington Rem 700 .300 Winchester Win Magnum Mag Bell & Carlson M40

Come on, admit it — who wouldn’t like to have a .300 Winchester Magnum in their personal arsenal. Here’s a chance to pick up a nice Rem 700 in .300 WM for under $650.00. The Model 700 Long Range features a 26″ heavy varmint barrel mated to Remington’s Long Action. This model comes with a Bell and Carlson M40-type tactical synthetic stock with dual front swivel studs for a sling and bipod. The 700 Long Range also features an aluminum bedding block for accuracy. The trigger is the externally-adjustable X-Mark Pro, factory set at 3.5 pounds.

2. Grafs.com — Nikon ProStaff 4-12x40mm Rimfire Scope, $99.95

graf grafs.com nikon rimfire prostaff rock rimfire sale coupon dicount

Right now Nikon is running a “Rock your Rimfire” promotion with instant savings of up to $50.00 per scope. With this program, you get a super-low price at time of purchase — there are no rebate forms to fill out or delays. While a variety of Nikon rimfire scopes are on sale currently, we think the most attractive deal is the Nikon 4-12x40mm Prostaff scope with BDC (bullet drop compensation) reticle. Right now, this scope is just $99.95 at Grafs.com. That’s a steal.

3. Amazon — RAVPower 16750mAh Portable Charging Pack

Amazon Ravpower battery charger USB high-output battery pack LadRadar Bart Sauter

Bullet-maker Bart Sauter used this RAVpower portable charging unit to power his LabRadar chronograph at a short-range shooting match. He reports: “I bought a RAVPower pack from Amazon. It was the most powerful cell phone charger they had and it was reduced to $31. It was able to run the LabRadar for two full days without recharging and still had juice.” This unit has impressive specs: “4.5A Output: Highest output in the market, featuring a 4.5A total output capable of simultaneously charging two tablets, making it faster and more powerful than the rest. Exclusive iSmart Technology… ensures fastest and most efficient charge.”

4. Bullets.com — Norma .22LR Ammo (Match 22 & Tac 22)

Norma Match 22 Tac .22 LR Ammo rimfire ammunition bullets.com

Need quality .22 LR rimfire ammo at an affordable price? Consider Norma. Most folks think Norma only produces centerfire ammo and cartridge brass. As a result, people haven’t been looking for Norma rimfire ammo. Their loss is your gain. Accurate, reliable Norma .22 LR ammunition is in-stock right now at leading online vendors. This is good quality ammo, made in Europe. Bullets.com has Norma Tac-22 ammo in stock at $5.25 per 50-rd box (SKU: BL7819). In addition, Bullets.com offers Norma Match-22 ammunition at $7.50 per 50-rd box (SKU: BL11887).

5. CDNN Sports — Browning Stainless .22 LR Buck Mark, $379.99

Browning Buckmark Stainless Camper UFX Pistol Handgun .22 LR 22 rimfire

Everyone needs a good .22 LR rimfire handgun, and the Browning Buck Mark is a classic. This stainless, bull barrel version is marked down this week to $379.99. That’s a very good price. Buckmarks, with their excellent triggers and great ergonomics, are fun to shoot and VERY accurate. This is a pistol you can keep for a life-time and pass on to your kids. Browning says: “Every Buck Mark starts out as a solid piece of aircraft-grade 7075 aluminum alloy, and then is CNC machined to exacting tolerances. The crisp single-action trigger, hand reamed chamber, target crowned barrel and finely adjustable target sights mean the Buck Mark comes ready for fun straight from the box.”

6. Widener’s — Norma 203B and 204 Powders on Sale

Wideners Norma alliant powder discount sale 203B Reloder 16 Norma 204

Looking for an excellent powder for your .308 Win, 6BR, or other small-to-midsized cartridge? You should consider Norma 203B. This Bofors-made powder is essentially the same as Alliant Reloder 15, which has set many records in the 6mmBR and 6mm Dasher cases. Right now Norma 203B is on sale at Wideners.com for just $19.95 per pound. That’s a great deal for an outstanding propellant. Other vendors charge up to $29.00 per pound for Norma 203B. Widener’s also has 8-lb jugs of Norma 204 powder is also on sale now for $139.00 (which works out to $17.35/lb). Norma 204 has a burn rate similar to H4350.

7. Amazon — Kowa 60mm TSN-601 Spotting Scope Body

Deals Week Kowa Spotting Scope TSN-61

If you are looking for a rugged, reliable, and affordable spotting scope to watch flags, mirage, and shot spotting discs, this angled-body Kowa TSN-61 will do the job. These Kowa spotters have been used successfully for years by prone and High Power competitors. Sure the glass is not as sharp as the latest top-of-the-line HD spotting scopes, but the TSN-61 is a small fraction of the price of high-end models which can run $2000 or more. The money you save can buy four premium hand-lapped barrels. NOTE: This item is the scope body only. Eyepieces are sold separately — expect to pay $260.00 – $300.00 for a Kowa 20-60X Zoom eyepiece.

8. Harbor Freight — Ammo Box and LED Light Super Savings

Harbor Freight plastic ammo can Harbor Freight LED light Safe lamp flashlight

Here are two great deals from Harbor Freight — both coupons are good through the end of March, 2016. We like these plastic ammo boxes better than metal .30-cal milsurp ammo cans because the plastic boxes are lighter, don’t rust, and they are much kinder and gentler to human shins and vehicle interiors. This $2.99 compact LED light works great to illuminate the interior of your gun safe. At this price you can buy three and keep a spare for your Emergency kit or vehicle glove compartments.

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March 13th, 2016

AmmoSeek.com Finds Ammunition and Reloading Components

Here’s a great search service that can help you locate hard-to-find ammunition and reloading components — while saving money in the process. Ammoseek.com monitors more than a dozen online vendors — checking current pricing and available inventory, for pistol, rifle, and shotgun ammunition. Need .45 acp ammo for your 1911? Just select “.45 ACP” from the “Quick Seek” list on the right. Likewise you can find .223 Rem and .308 Win Rifle ammo with one click.

Ammoseek search engine ammuntion reloading supplies

Find .22 LR Ammo Quickly
Looking for hard-to-find .22 LR rimfire ammunition? Well AmmoSeek makes it easy — you don’t even have to enter any search words. Simply click on the highlighted links for AmmoSeek’s 22LR Page.

CLICK HERE for AmmoSeek.com .22 LR Ammo Search Results

Use Ammoseek.com to Find Reloading Components Too
Ammoseek.com also lets you search for reloading components, including powder, primers, brass, and bullets. This is a huge time-saver. You can instantly check a dozen or more vendors to see if a particular type of powder is in stock. Likewise, you can quickly check for primer availability. If you have a big match coming up and are short on primers — this could solve the problem.

Ammoseek search engine ammuntion reloading supplies

Story Tip by Boyd Allen. We welcome reader submissions.
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March 12th, 2016

Are Polymer-Copper Matrix Bullets the Future for Pistol Ammo?

Ruger ARX polymer copper matrix Bullet Cheaper than Dirt
Photo from Ruger ARX Ammo Review in Cheaper Than Dirt Shooter’s Log.

Take a good look at this unusual ammunition. We think you are looking at the future of handgun ammo — at least for range and practice work. This patent-pending ammunition features a 100% lead-free bullet blended from polymer (plastic) and copper powder. The polymer-copper matrix (PCM) composition offers three major benefits: 1. the bullets do not ricochet; 2. the bullets are lighter and therefore faster than conventional projectiles; and 3. the bullets are environmentally friendly. We think this is a big deal — we predict matrix pistol bullets will become extremely popular in the years to come.

At the 2016 SHOT Show Media Day, we shot ammo with PCM bullets in a half-dozen handguns. The ammo performed flawlessly, without a hitch. In .40 SW and .45 ACP pistols, the felt recoil was considerably less than with conventional lead-core ammo (the difference was less noticeable with .380 ACP and 9mm Luger).

Ruger is now offering Ruger-branded ARX ammo with polymer-copper matrix bullets. This ammo will be produced under a licensing agreement with PolyCase Ammunition, the Georgia-based business that originally developed this bullet technology.

While Ruger is touting this ammo as a self-defense solution, we think the most common use of this new ammo will be for indoor practice, plinking, gun games such as IDPA, and use on steel and reactive targets. If you like to shoot steel, matrix bullets make sense. The polymer-copper matrix bullet basically disintegrates into very small fragments when it hits metal.

This video includes extensive tests of Ruger 9mm ARX ammo:

Ruger ARX Ammo with Injection-Molded Matrix Bullets
The fluted projectiles are injection-molded from a polymer-copper matrix. This offers many advantages. First, being completely lead-free, these bullets can be used at indoor facilities that prohibit lead-based ammo. Second, because the composite bullets weigh 30% less than comparable lead-based projectiles, shooters experience less recoil (even though velocities are higher). Third, the composite matrix bullet has low-ricochet properties. When these bullets strike metal, they are designed to disintegrate, rather than ricochet. This makes them well-suited for indoor use, or use with metal plates.

Ruger ARX Ammunition Ammo Injection Molded Matrix Composite Copper Nylon Polymer

Ruger’s new ARX line of lead-free ammo features injection-molded bullets that are much lighter than conventional projectiles, caliber by caliber: 56 grains for .380 ACP, 74 grains for 9x19mm, 107 grains for .40 SW, and 114 grains for .45 ACP. The lighter bullets fly faster, but ARX ammo still offers reduced perceived recoil.

ARX Ammo for SALE
.380 ACP
9mm Luger
.40 SW
.45 ACP

Shooting Wire Editor Jim Shepherd reports that ARX ammo delivers on its low-recoil promise: “Having spent time testing the PolyCase ammunition (largely in Ruger firearms), I know the reduction in felt recoil isn’t just hype. While firing PolyCase ARX ammunition in calibers ranging from .380 in small concealed carry pistols (including a Ruger’s LCP) up to .458 SOCOM in modern sporting rifles, the lessened felt recoil was noticeable.”

Polymer-Copper Matrix Bullets Show Good Penetration
Despite their lighter-than-average weight, ARX bullets show good penetration in ballistics gelatin, thanks to their unique, fluted-tip design. This video shows penetration tests:

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December 20th, 2015

Sorting Bullets for Competition — What Works Best

Bryan Litz F-TR Bullet Sorting
Bryan Litz with his F-TR Nat’l Championship-winnning rifle, and the man who built it, John Pierce.

Bryan Litz knows something about bullet shapes and dimensions. He’s the chief designer of many of Berger’s projectiles, including the successful line of Hybrid bullets. Bryan also understands how bullets actually perform in “real world” competition. Bryan won BOTH the Mid-Range and Long-Range National F-TR Championships this year, a remarkable accomplishment. With Bryan’s technical expertise combined with his shooting skills, few people are better qualified to answer the question: “how should I sort bullets when loading for competition?”

Bullet Sorting Strategies — OAL vs. Base to Ogive
At the 2015 Berger Southwest Nationals, Forum member Erik Cortina cornered Bryan Litz of Applied Ballistics. Erik was curious about bullet sorting. Knowing that bullets can be sorted by many different criteria (e.g. weight, overall length, base to ogive length, actual bearing surface length etc.) Erik asked Bryan to specify the most important dimension to consider when sorting. Bryan recommended sorting by “Base to Ogive”. Litz noted that: “Sorting by overall length can be misleading because of the nature of the open-tip match bullet. You might get a bullet that measures longer because it has a jagged [tip], but that bullet might not fly any different. But measuring base to ogive might indicate that the bullet is formed differently — basically it’s a higher resolution measurement….”

Ballistics Q & A in Shooter’s Forum
Got more questions about bullets? Our Shooters’ Forum has a special area for Bullets & Ballistics topics. There you can get your own questions about bullets and ballistics answered by Bryan Litz and other experts from Applied Ballistics.

accurateshooter.com forum bryan litz berger ballistics bullets

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August 29th, 2015

Widener’s Has Name-Brand Bullets on Sale This Weekend

Widener's Bullet Sale Sierra Nosler Speer Hornady

Need name-brand bullets? Here’s a way to save 10% on Nosler, Sierra, Hornady, and Speer Bullets. Here’s how it works — this weekend only (August 28-31, 2015) Wideners.com is offering 10% off ALL Nosler, Sierra, Hornady, and Speer bullets in stock (some other bulk-brand bullets are on sale as well).

NOTE: Widener’s says “The discount will not appear on the website or on your order at checkout but will be applied when we process the order”. We suggest you print out your order and compare that with the actual charge(s) on your credit card to ensure that Widener’s did, in fact, apply the 10% discount. As they say: “Trust, but verify“. The Sale ends at 5:59 am Eastern Standard Time 8/31/15. That’s very early in the morning on Monday so we advise you to place your orders before midnight, before you go to bed on Sunday, 8/30/2015.

Sale Tip from EdLongrange. We welcome reader submissions.
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August 22nd, 2015

Lapua Launches Lapua Club for Customers

Lapua Club membership promotion contest

Lapua, the Finnish maker of premium cartridge brass, bullets, and ammunition, has created a new Lapua Club for Lapua’s customers and product users. By signing up for the Lapua Club, you can get access to “members-only” data. In addition, by registering multiple products, you can get rewards such as Lapua hats and holsters. For each product registered you’ll also get a chance to win instant prizes or a Grand Prize Whitetail Hunt.

CLICK HERE for LAPUA CLUB Registration Information

How to Sign Up for the Lapua Club
Join the Lapua Club by scanning the QR code on your 2015 Lapua ammunition box, Lapua cartridge case box, or Lapua bullet package. Use your mobile phone to read the QR code on your Lapua package(s), or go to http://www.club.lapua.com/en/campaign/lapua-club/ and directly type in the code. (NOTE: Packages that do not have a QR code may have a card in the box with the QR code.) By registering your package(s) you become entitled to exclusive Lapua Club member benefits.

NOTE: Lapua recommends that customers register each cartridge package separately. The more products you register, the more Lapua gear you can get:

By registering 5 products or more you can qualify for a Lapua Cap.

By registering 10 products or more you can qualify for a Lapua Holster.

Lapua notes: “If you have purchased multiple cartridge packages, you should register all of them separately. Each package code … gives you a chance to win instant prizes and take part in our main [contest]. Whether or not your package codes won an instant prize, each of them will also compete for the grand prize: a ticket to the Lapua White Tail Hunt 2015 event.”

Register your Lapua Products by entering the QR code on Lapua product packages.
Lapua Club membership promotion contest

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July 16th, 2015

Barnes Calculates Ballistics Using Doppler Radar Speed Data

Ballistics Barnes Bullets Doppler Radar G1 G7 curve model drop chart DOF 6 degree of freedom

How do you build better (more precise) ammo drop tables? With radar, that’s how. Barnes Bullets is using Doppler Radar to develop the drop tables for its new Precision Match line of factory ammunition. The Doppler radar allows Barnes to determine actual velocities at hundreds of points along a bullet’s flight path. This provides a more complete view of the ballistics “behavior” of the bullet, particularly at long range. Using Doppler radar, Barnes has learned that neither the G1 nor G7 BC models are perfect. Barnes essentially builds a custom drag curve for each bullet using Doppler radar findings.

Use of Doppler Radar to Generate Trajectory Solutions

by Barnes Bullets, LLC
Typical trajectory tables are generated by measuring only two values: muzzle velocity, and either time-of-flight to a downrange target, or a second downrange velocity. Depending on the test facility where this data is gathered, that downrange target or chronograph may only be 100 to 300 yards from the muzzle. These values are used to calculate the Ballistic Coefficient (BC value) of the bullet, and the BC value is then referenced to a standardized drag curve such as G1 or G7 to generate the trajectory table.

Ballistics Barnes Bullets Doppler Radar G1 G7 curve model drop chart DOF 6 degree of freedomThis approach works reasonably well for the distances encountered in most hunting and target shooting conditions, but breaks down rapidly for long range work. It’s really an archaic approach based on artillery firings conducted in the late 1800s and computational techniques developed before the advent of modern computers.

There is a better approach which has been utilized by modern militaries around the world for many years to generate very precise firing solutions. Due to the sizeable investment required, it has been slow to make its way into the commercial market. This modern approach is to use a Doppler radar system to gather thousands of data points as a bullet flies downrange. This radar data is used to generate a bullet specific drag curve, and then fed into a modern 6 Degree of Freedom (DOF) [ballistics software program] to generate precise firing solutions and greatly increase first-round hit probability. (The 6 DOF software accounts for x, y, and z position along with the bullet’s pitch, yaw, and roll rates.)

Barnes has invested heavily in this modern approach. Our Doppler radar system can track bullets out to 1500 meters, recording the velocity and time of flight of that bullet every few feet along the flight path. Consider the graph below showing a bullet specific drag curve referenced to the more common G1 and G7 curves:

Ballistics Barnes Bullets Doppler Radar G1 G7 curve model drop chart DOF 6 degree of freedom

Neither of the standard curves is a particularly good match to our test bullet. In the legacy approach to generating a downrange trajectory table, the BC value is in effect a multiplier or a fudge factor that’s used to shift the drag curve of the test bullet to try and approximate one of the standard curves. This leads to heated arguments as to which of the standardized drag curves is a better fit, or if multiple BC values should be used to better approximate the standard curve (e.g., use one BC value when the velocity is between Mach 1 and Mach 2, and a different BC value when the velocity is between Mach 2 and Mach 3.) Barnes’ approach to creating trajectory tables is to generate bullet-specific drag curves, and use that data directly in a modern, state-of-the-art, 6 DOF ballistics program called Prodas to generate the firing solution.

Story tip from EdLongrange. We welcome reader submissions.
Permalink Bullets, Brass, Ammo, Tech Tip 6 Comments »
May 19th, 2015

"How Do Bullets Fly?" — Great Online Resource

Bullet External Ballistics
“The overturning moment MW tends to rotate the bullet about an axis, which goes through the CG (center of gravity) and which is perpendicular to the plane of drag….

Ruprecht Nennstiel, a forensic ballistics expert from Wiesbaden, Germany, has authored a great resource about bullet behavior in flight. Nennstiel’s comprehensive article, How Do Bullets Fly, explains all the forces which affect bullet flight including gravity, wind, gyroscopic effects, aerodynamic drag, and lift. Nennstiel even explains the rather arcane Magnus Force and Coriolis Effect which come into play at long ranges. Nennstiel’s remarkable resource contains many useful illustrations plus new experimental observations of bullets fired from small arms, both at short and at long ranges.

Shadowgraph of .308 Winchester Bullet

Bullet External Ballistics

A convenient index is provided so you can study each particular force in sequence. Writing with clear, precise prose, Nennstiel explains each key factor that affects external ballistics. For starters, we all know that bullets spin when launched from a rifled barrel. But Nennstiel explains in greater detail how this spinning creates gyroscopic stability:

(more…)

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March 2nd, 2015

Bullet Sorting — Bryan Litz Offers Smart Advice

At the 2015 Berger Southwest Nationals, Forum member Erik Cortina cornered Bryan Litz of Applied Ballistics. Erik, the F-Open winner in the 600-yard Mid-Range match, was curious about bullet sorting. Knowing that bullets can be sorted by many different criteria (e.g. weight, overall length, base to ogive length, actual bearing surface length etc.) Erik asked Bryan to specify the most important dimension to consider when sorting. Bryan recommended sorting by “Base to Ogive”. Litz noted that: “Sorting by overall length can be misleading because of the nature of the open-tip match bullet. You might get a bullet that measures longer because it has a jagged [tip], but that bullet might not fly any different. But measuring base to ogive might indicate that the bullet is formed differently — basically it’s a higher resolution measurement….”

Ballistics Q & A in Shooter’s Forum
Got more questions about bullets? Our Shooters’ Forum has a special area for Bullets & Ballistics topics. There you can get your own questions about bullets and ballistics answered by Bryan Litz and other experts from Applied Ballistics.

accurateshooter.com forum bryan litz berger ballistics bullets

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