GunsAmerica Digest has a new Suppressor Academy webpage that provides host of helpful information about suppressors (aka “silencers” and “cans”). The Suppressor Academy online resource page features in-depth articles with important information for anyone considering acquiring a suppressor. The articles explain the key benefits of suppressors, how to choose a suppressor, and how to comply with Federal and state laws regulating suppressors. Below we link to four Suppressor Academy articles. Click the title for each topic to read the full-length article.
Suppressors are now legal in 42 U.S. States. There are certain legal requirements for obtaining a suppressor, including paying a $200 Tax Stamp. To own a suppressor you must be legally eligible to purchase a firearm, pass a BATFE background check, pay a one time $200 Transfer Tax, and satisfy age requirements. (SEE ALL Requirements). In most (but not all) of those states you can use a suppressor for hunting. The eight (mostly blue) states which still prohibit civilian suppressor ownership are: California, Delaware, Hawaii, Illinois, Massachusetts, New Jersey, New York, and Rhode Island. READ FULL ARTICLE on GunsAmerica Digest.
Suppressors serve one main purposes — to reduce the sound levels produced when firing pistol or rifle rounds. But GunsAmerica Digest editor True Pearce notes there are many other reasons to own a suppressor. A suppressor can reduce muzzle blast and felt recoil. The suppressor may prevent hearing damage that occurs through bone conduction better than earplugs and muffs because it reduces the noise energy at the source. When hunting, the reduced shot noise can help avoid spooking game. Having a suppressor also makes it easier to communicate when working as a team on a hunt. And, when compared to a muzzle BRAKE, suppressors are much less likely to kick up dust, dirt, sand, and snow when you shoot prone. READ FULL ARTICLE on GunsAmerica Digest.
There is some confusion surrounding the laws concerning suppressors, which are now legal in 42 U.S. States. In most jurisdictions that allow suppressor ownership, no additional state permit or license is required. But you do have to comply with Federal requirements when acquiring the suppressor. You may wish to create a trust to own the suppressor — there are some important practical advantages to having a suppressor trust. The Traditional NFA Gun Trust allows multiple responsible parties, i.e. “trustees”, to legally have possession of the suppressor. Each trustee must be verified and for each suppressor owned by the trust there will be a $200 Tax Stamp. READ FULL ARTICLE on GunsAmerica Digest.
When shopping for a suppressor there are many factors to consider: price, build quality, materials, sound level reduction effectiveness, weight, ease of mounting, and ease of cleaning and maintenance. We recommend that all suppressor buyers research the options. Check the manufacturer’s reputation, check diagrams for disassembly and maintenance. There are always trade-offs. Shorter suppressors may save some weight, but if they don’t cut the decibels as well you may be disappointed. You also need to consider the caliber — will your suppressor be used on multiple firearms? If so then get one that fits the largest caliber you will shoot. READ FULL ARTICLE on GunsAmerica Digest.
Over the past month, many of the world’s best long range shooters competed in South Africa. First was the South African Open Championship, held March 9-15, 2024 for “Target Rifles”. This was followed by the 32nd World Long Range Championships for Fullbore/Palma rifles, with individual and team competitions held March 16-23, 2024. The World LR Championships event was for “hard-holders”, shooting iron-sighted rifles prone with sling. There were shooters from at least 12 countries: Australia, Canada, Channel Islands, Germany, Great Britain, Japan, Kenya, Ireland, N. Ireland, New Zealand, South Africa, and the USA.
The World LR Championships and the South African Open Championships were held at the Genl De Wet range West of Bloemfontein in South Africa. Conditions were very challenging — with very hot temperatures on the range and challenging winds.
Individual Top 20 Results 32nd World Long Range Championships
Australian Ash Bidgood won the Individual World Championship with an impressive 739-92V score. Great Britain’s Glyn Barnett was a close second (on V-Count) with 739-86V. In third place was another Brit, J.C. Underwood, who tallied 738-78V.
Two Americans finished in the top 15, Brandon Green (733-82V, 8th place) and Amanda Elsenboss (659-59V, 11th place). Both Brandon and Amanda are past USA National Champions who previously served in the U.S. Army and shot with the USAMU Team.
Other Grand Aggregate Divisional Winners include:
Veterans: B. Carter, New Zealand, 661-60V
Ladies: R.L. Furniss, Great Britain, 662-73V
Veterans Over 70: J. Jeffrey, Australia 548-51V
Under 25-21 Age: M. Baily, Australia, 661-84V
Under 21: T. McGowen, USA, 648-61V
Team Results: 32nd World Long Range Championships
1. Australia Total: 7172.996 | Day 1: 3580.474 Day 2: 3592.522
2. Great Britain Total: 7168.1005 | Day 1: 3578.469 Day 2: 3590.536
3. South Africa Total: 7153.869 | Day 1: 3562.405 Day 2: 3591.464 Click HERE for All Team Scores
4. United States Total: 7140.876
5. New Zealand Total: 7030.703
6. Canada Total: 6946.592
7. Germany Total: 6683.465
Team Australia won the Long Range World Championship with leading scores on both days of competition. The Aussies shot well, earning the Gold medal with a 7172.996 total vs. 7159.1004 for the Brits. Team Australia reported on its Facebook page: “We’d like to summarize how the 2024 Palma in South Africa evolved and highlight just how extraordinary it was. World records were repeatedly smashed and, while Australia defended and retained our world championship title earned in 2019, this was only the 4th time Australia has won the Palma since its inception in 1876.”
All four leading teams smashed the old full match Palma record of 7106.825 set by Great Britain in 2015, with Australia setting the new Palma world record with 7172.995. On Day 2, Australia set a new single-day world Team world record of 3592.521. That’s 37 points higher than the previous team record of 3555.424 set by GB in 2015.
The new individual World Record (during team competition) went to Australia’s Brett McCauley with 450-73V — breaking the world record of 449-55V set by Toby Raincock of GB in 2015. And, on Day 2, Great Britain’s Theo Dodds set a one-day individual world record with 225-40V.
USA’s Brandon Green Wins South African Open Championship
Former USAMU shooter Brandon Green topped the field in the South African Open Championship, which took place before the World Championships. Brandon won the SA Open individual title in a dramatic shoot-off. Congratulations to Brandon Green for an impressive come-from-behind victory to win the South African Nationals. Brandon finished with 924-93V, edging out Great Britain’s M.J. Ensor (923-101V) by a single point. Now that’s close!
Photo credit Chris Wheeden, GB Veterans Team
Shooter’s Report from South Africa by Paula Crenshaw
The first week of competition was the South African National Championships which was (for some) a warm-up to the World Long Range Championships. The U.S. National Rifle Team had five teams there. These were: Palma Team, the Veterans Team (those over 60), Goodwill Team, Junior Under 25, and Junior Under 21 teams. Competitions included team competitions and individual competitions.
I was not happy with my performance but I’m not particularly disappointed either. I know what I need to do. My .223 Rem caliber Palma rifle was also not ideal, and I’m eager to shoot my new .308 Win rifle. My Goodwill Team did take second in the Chairman’s Match.
Photo from last day of individual World Championship. The heat was tough.
The entire experience was amazing. It was also incredibly challenging with the heat wave and the winds. My teammates are outstanding people and I met many wonderful fellow shooters from other countries. Shooting while wildebeests and ostriches roamed the range (see above) was … interesting! Captain Bob’s wild dash to get me my forgotten bolt from the hotel was one for the storybooks … and his comment that he’d do it again despite being banned from the range warmed my heart. To my teammates John, Mark, Seth, and our coach Yvonne: Thank you!
The USA women competitors. Right to left: Trudy Fay, Paula Crenshaw, Yvonne Roberts, Kacie McGowan, Amanda Elsenboss, Jessica Hudson.
Here is a cool overhead photograph of the Genl De Wet shooting range outside Bloemfontein, South Africa.
Photo credit Chris Wheeden, GB Veterans Team
About the Long Range World Championship — Rifles and Course of Fire by Paula Crenshaw
Fullbore and Palma are different courses of fire, but both shot with similar rifles. The 87th South African Open Bisley Championships was a fullbore event held March 9-15, 2024. There were individual and team matches. The 32nd World Long Range Championships was a Palma event held March 16-23, 2024. A Palma match is shot at 800, 900, 1000 yards (or 700, 800, 900 meters) and has 15 shots for record at each distance using a .223 Rem or .308 Win (7.62×51) caliber iron-sighted rifle. A Palma rifle is always shot with a sling and iron sights.
Fullbore competition has 2-3 shooters to the mound (except in the USA where sometimes string fire is allowed at 1000 yards), 10 shots (sometimes 15) and shot at 300, 500, 600, 900, 1000 yards (or the equivalent in meters).
The Palma discipline has evolved into the “The World Long Range Championships, Individual and Palma Team Matches”. It has gone through many changes since 1876 and has developed its own set of rules and requirements for target, rifle, and cartridge. The match is now held at 4-year intervals. Teams consist of 16 firing members and two alternates along with a support group of a team captain, adjutant, five coaches, and a non-firing armorer, with total team size not to exceed 26 members. The match in South Africa was shot at 700, 800, and 900 meters.
The Palma is a match of great distinction. While the long range championships include individual matches and a nation’s other teams such as the Veterans teams, Under 25, Under 21, and USA’s Goodwill team, it is the Palma teams that hold the highest honor. The World Long Range Championships culminate with the Palma teams competing from each country. For an excellent detailed history I recommend A History of the Palma Match by Hap Rocketto, first published in 1996 (CLICK HERE FOR PDF).
Photo Credits: Credit top image, range flags image, and Brandon Green Chair image Great Britain Rifle Team. Other images credit Paula Crenshaw, Team USA, Team Australia, Chris Wheeden.
Can sustained rapid-fire shooting with no cool-down period wear out a quality barrel more quickly? The answer is “Yes” according to Forum member LCazador, who did an interesting comparison test with two .243 Winchester barrels. He started off with two, identical, match-grade HV taper stainless barrels. Both were NEW at the start of testing, and LCazador shot the same load through each: 95gr match bullets with 38 grains of Hodgdon Varget. After giving both barrels the same, gentle 20-round break-in, 300 rounds were then fired through each barrel — in very different ways. Barrel condition and wear were monitored with a borescope.
Barrel One — Slow Fire, Cool Down Periods, Cleaning Every 50 Rounds
At the end of the 300-round test, Barrel One looked brand new. There was none of the severe fire cracking found in Barrel Two. This barrel was shot no more than 10 times without a cool down and firing was done at a much slower pace. Cleaning for this barrel was done every 50 shots.
Barrel Two — Fast Firing, No Waiting, Cleaning Every 100 Rounds
The second barrel, which received hard use and minimal cleaning, was severely damaged with severe fire cracking at the leade and throat. As a result, the barrel had to be re-chambered. This barrel was shot 100 rounds at time without cleaning and was shot up to 20 times in succession without a cool down.
LESSON LEARNED — Heat Kills Barrel Life
Don’t let your barrel get too hot, and keep it clean. One afternoon can ruin a barrel!
Monitoring Barrel Wear with Borescope
Some folks worry too much about what their borescopes reveal — many barrels do not have to be “squeaky clean” to perform well. In fact some barrels run better after ten or more fouling shots. However, a borescope can be very helpful when your barrel starts losing accuracy for no apparent reason. Forum member FdShuster writes:
“A borescope is a positive way of backing up your suspicions when the rifle starts to throw an occasional (soon followed by more frequent) wild shot. Using the scope is also an excellent way to determine that the cause is barrel wear and not simply a need for a concentrated cleaning session to remove built up copper and more importantly, carbon fouling.
I’ve had a few barrels that gave every indication of being shot out. But I ‘scoped them out and found the cause to be nothing more than requiring a good cleaning. They then returned to their usual performance. There’s no guessing involved when you are able to get ‘up close and personal’ using the scope. The borescope also provides an excellent view of the all-important condition of the crown. My borescope is one of the most valuable investments I’ve ever made.”
If you have ever competed in NRA High Power, Silhouette, or Long Range disciplines, you know the name David Tubb. Arguably the greatest rifle marksman in American history, David has recorded 11 High Power Rifle Championships, 6 Long Range National Championships, and 7 High Power Silhouette National Championships. Over his career David has won 130 NRA trophies for various competitions. No one has even come close to that number of Championships and honors in rifle competition.
David Tubb Biography Video
Click the video above to view a great new documentary which covers David Tubb’s career in competitive shooting. Called America’s Rifleman, this fine documentary by filmmaker Sheldon Charron takes you inside the life and mind of legendary shooting champion David Tubb.
Learn how David evolved into the most successful rifleman in the history of competitive shooting, the challenges he faced, and how he overcame them on his road to success, both at the range and in his business, Superior Shooting Systems.
David Tubb Interview Podcast with Erik Cortina
In this very recent 3/22/24 Podcast, David Tubb was interviewed by ace F-Class shooter Erik Cortina, creator of Cortina Precision products — tuners, muzzle brakes, reloading dies and more. This 66-minute video is worth watching start to finish. David covers a wide range of topics include match strategies, marksmanship training, ELR competition, and cartridges he has developed including the 6mm XC (6XC), 338 XC, and 375 XC.
David Tubb Competition Shooting Accomplishments:
11 Time – NRA National High Power Rifle Champion – Camp Perry
6 Time – NRA Long Range Rifle (600-1000 yard) National Champion
7 Time (Consecutive) – NRA National High Power Rifle Silhouette Champion
6 Time – NRA National High Power Hunting Rifle Silhouette Champion
4 Time – NRA National Smallbore Hunting Rifle Silhouette
7 Sportsmen’s Team Challenge Championships
2 Time – Wimbledon Cup Winner
2019 ELR World Record Holder recognized by 50 Cal. Shooters Association
2019 NRA ELR Heavy Gun Winner
Over 130 NRA Championship Event Trophies (Individual Match Winner)
David Tubb with the ELR Adaptive Target Rifle (ATR) he designed which has set ELR records. You can see David shoot this rig in the video below:
David Tubb Shoots ELR Adaptive Target Rifle at KO2M
For the Extreme Long Range discipline, David Tubb developed a .375-caliber, long-barreled ELR version of his famous Tubb rifle, called the Adaptive Target Rifle (ATR). A version of this rifle, piloted by David’s son-in-law Nate Stallter, set the current ELR World Record in January 2018.
The TUBB 2000 — Innovative Modular Bolt Gun
David Tubb is arguably the greatest High-Power Across-the-Course rifle competitor in American history. He won many of his championships shooting a modular rifle of his own design — the Tubb 2000, aka T2K. In this video, David shows the features of the Tubb 2000 rifle which makes it adaptable to multiple shooting positions — prone, sitting/kneeling, and standing.
David Tubb Talks about KO2M and Extreme Long Range Shooting
David Tubb’s long-range rifles have performed well in Extreme Long Range shooting. AT the 2019 NRA Extreme Long Range Championship, David Tubb won the Heavy Gun Division. In this video, created during the King of 2 Miles (K02M) competition at the Whittington Center in New Mexico, David talks about the challenges of ELR shooting, and cartridge selection. Big, heavy, large-caliber bullets with ultra-high BCs are favored for the ELR game, but recoil and cost must also be considered.
David Tubb’s Approach to Load Development
In this 27-minute video, David talks about case prep and loading with both regular and progressive presses. David shares his methods. He recommends weighing your brass and segregating them in one grain increments. He then does an initial test with powder charge weights in half-grain increments (for smaller BR cases we recommend 0.3 grain increments). He then also experiments with seating depths.
“America’s Rifleman” Movie Credits:
Production Company: Enter360 Media
Producer/Director/Editor: Sheldon Charron
Production Assistant: Christie Tubb
Enjoy the Shooting Sports USA Archives
As we head into spring, many Americans will be spending more time at the range. And competitors will be shooting in rimfire and centerfire rifle matches throughout the country. Here’s an opportunity to learn competition skills, gun tuning methods, and reloading techniques from leading experts. A vast resource of great gun-related content available online for FREE. Check out the Shooting Sports USA Articles Archive. SSUSA maintains a vast digital library with hundreds of articles going back to June 2009.
It’s easy to find back issues of Shooting Sports USA magazine. Here’s how: First, navigate to the latest SSUSA Online Issue (March 2024). Then click on the “ARCHIVES” icon in the upper right area (indicated with red arrow). When you click on “ARCHIVES”, a window will open with a selection of Shooting Sports USA magazine covers/dates in a vertical column. The most recent issue (March 2024) will appear at the top left. You can then scroll down — use the vertical scroll bar to go from March 2024 all the way back to June 2009. Click any issue cover to read.
How to Find and Save Articles
To search back issues, select “MORE OPTIONS” from the toolbar (top left). Then click the “SEARCH” button. When that opens, select either “Search Archives” for ALL back issues or “Search Only this Issue”. When you’ve made your choice, enter your search term(s). For example, you can search for “Camp Perry” or “Palma” or “F-Class Championship”. You can also save any archived issue as a PDF for viewing offline. Just click “SAVE” to download the article you’re currently viewing/reading.
Read Sample Articles
Here are a three of our favorite SSUSA feature stories from recent years. There are hundreds of other informative articles worth reading.
F-Class fans will enjoy the coverage of the 2023 F-Class World Championships in the June 2023 issue of Shooting Sports USA. On the cover is our friend and Forum member Erik Cortina.
Peterson Cartridge Company (“Peterson”) has released a lengthy, authoritative guide to the 22 Creedmoor cartridge, a popular wildcat based on the 6.5 Creedmoor or 6mm Creedmoor necked down to .224 caliber. We think the .22 Creedmoor would be a great long-range varmint cartridge, similar to the .22-250 Rem, but with a more modern, efficient cartridge design. In addition, some PRS/NRL competitors may turn to the .22 Creedmoor because it has less recoil and is flatter-shooting than the 6mm Creedmoor. In addition, .224-caliber match bullets are typically less expensive than heavier 6mm and 6.5mm projectiles. Less recoil, and less cost — what’s not to like?*
Along with load data, this article has specific sections dedicated to: Primers, Rifling Twist Rates, and Reloading Supplies. If you are considering building a .22 Creedmoor, we recommend you download the full Peterson .22 Creedmoor article, which is available in PDF format.
Peterson states, “Since its inception in 2007… the 6.5 Creedmoor has seen some pretty meteoric growth in popularity. That growth continues as of this writing, as the cartridge has now gone mainstream with hunters and shooters alike. As the popularity of the 6.5 Creedmoor has increased, so has the number of wildcat cartridges based off of it. Some of those popular wildcat cartridges are the 6mm Creedmoor, the .25 Creedmoor, and now the .22 Creedmoor. This data sheet will cover the .22 Creedmoor.
To help our customers, and anyone else who shoots .22 Creedmoor, we decided to create this Data Sheet and distribute it. [In this LOAD DATA Document] you will find four (4) common bullets, and four (4) common rifle powders used when handloading the .22 Creedmoor cartridge. We then took the different bullet and powder combinations and loaded them up to the SAAMI Maximum Average Pressure (MAP) for the 6.5 Creedmoor and 6mm Creedmoor cartridges, which is 62,000 PSI. [O]ur goal was to provide a wide spectrum of bullet weights and the powders used with them.
All of the following data was gathered by our ballistician in our indoor ballistics lab located in our factory in Pennsylvania. Although we were able to gather pressure and velocity data in our lab, we have NOT tested these loads for accuracy. Again, these loads are just designed to give shooters information regarding what velocity, a given bullet and powder charge combination, will produce the SAAMI Maximum Average Pressure (MAP) of 62,000 psi.”
Sample 22 Creedmoor LOAD DATA
IMPORTANT — Pressures can vary significantly with different Cartridge Overall Lengths (COAL). In addition, ANY change to ANY load components — primers, bullets, brass, powder — can affect pressure. Always load conservatively. In addition, because of variances in bore dimensions, some barrels may show higher pressures than others. Again, always start with conservative loads, well below MAX pressures.
*Actually there IS a potential downside — reduced barrel life. We expect that a .22 Creedmoor running hot varmint loads would experience shorter useful barrel life compared to a 6.5 Creedmoor. This is based on what we’ve observed with .22-250 and .22-250 Ackley barrels compared to our 6.5 CM barrels.
As does Lapua and some other leading bullet-makers, Barnes now uses radar to determine bullet BC values and ballistic data for its match bullets and ammunition. Barnes employs advanced Doppler Radar to record bullet speeds at multiple distances out to 1500 yards.
The Doppler radar system gathers 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.
Determining Bullet Ballistics with Doppler Radar Data
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 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.
This 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.)
Bullet-Specific Drag Curves Derived from Radar Data
Barnes’ advanced 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. The noteworthy graph below shows a Doppler Radar-derived, bullet-specific drag curve alongside the more common G1 and G7 curves:
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.
Here is an interesting project by one of our Forum members. Martin C. (aka “Killick”) modified an Anschutz 1411 Match 54 rimfire prone stock to become a comfortable, great-tracking F-Class Open Division Stock. No Killick didn’t sacrifice a perfectly good rimfire rifle for this project — he bought the Anschutz stock by itself on eBay, then transformed it…
Killick explains: “This project started about seven years ago. I bought the Anschutz prone stock on eBay and whittled it a bit into a Palma rifle with a Barnard action and block and a Doan Trevor cheek piece and scope rail. Then about two years ago I decided to re-task the stock/action assembly into an F-Open rig. With more whittling, gluing, sanding, body fillering, sanding, filling, sanding, more sanding…and sanding, forming, priming, sanding, painting, waiting, painting, painting…painting and before you know it, Bob’s your uncle.”
Here is the eBay-sourced Anschutz 1411 stock, with new high-gloss blue finish, as initially modified for use in Killick’s centerfire Palma rifle. Looks nice!
Next step was the addition of a 3″-wide wood fore-end for F-Open duties with front rest:
Almost done here… just needs priming and final painting:
Here is Killick’s completed F-Open rifle with its much-modified Anschutz stock now finished in fire-engine red lacquer. This image shows the detail of the grip and customized cheekpiece.
The Applied Ballistics Facebook Page features great, interesting new content posted multiple times each week. This resource features videos, test results, accuracy tips, and samples from Bryan Litz’s excellent books on ballistics and the three volume series on Modern Advancements in Long Range Shooting. Here are some highlights from Applied Ballistics’ Facebook posts from the past two weeks. Plus there’s a discount code, READ2024, that can save you 25% on Applied Ballistics books purchased in the month of March.
.22 LR Super Slow Motion Video — Watch the Bullet!
Watch .22 LR Rimfire Projectile Exiting Rifle Muzzle
This video, filmed with an ultra-high-speed camera, shows the milliseconds in time as a .22-caliber bullet travels the first 11 inches after leaving a .22 LR rifle barrel. Applied Ballistics states: “Notice that the bullet is fully obturated to the internal bore dimension — the step/rebate that exists on the unfired bullet where it meets the case gets expanded (obturated) and doesn’t exist on the fired bullet.”
How Important is Case Fill Ratio — You May Be Surprised
Conventional reloading practice is to select a powder that gives you a good case fill, meaning 90%-100% fill ratio for the cartridge and bullet you’re using. But why?
Some say that a higher fill ratio is good because it prevents the powder from settling differently in the case (which could lead to inconsistent ignition and greater MV SD). This explanation sounds good, and went unchallenged for a long time. However, Applied Ballistics has done some interesting testing that sheds new light on the density issue.
Modern Advancements in Long Range Shooting – Vol. 2 contains the results of Applied Ballistics tests of five different cartridge types — .223 Rem to .338 Lapua — loaded with different powders to produce fill ratios of 80%, 90%, and 100%. The testers wanted to see if 100% fill ratios actually gave better results (lower MV SDs) than the lower fill ratios.
Results of testing 3 different loads in 5 different cartridges — The highest MV SD was in fact measured in an 80% fill ratio load. However, the lowest MV SD was also measured for a different 80% load! Seems like the more we learn, the more questions we have. An informative Applied Ballistics podcast covers the Fill Ratio test. Visit Thescienceofaccuracy.com to access this and interesting podcasts.
EDITOR’s NOTE: There were multiple comments from Facebook readers stating that fill ratios 90% and above worked more consistently for them. And the reloading manuals warn against very low fill ratios.
Get 25% Off Applied Ballistics Books in March 2024
Applied Ballistics, through its Science of Accuracy webstore, is currently offering big savings on its popular books — considered to be the best print resources about rifle accuracy/ballistics ever published. This month you can save 25% on all six Applied Ballistics book titles by respected expert (and past national champion) Bryan Litz. Use Code READ2024 to get 25% of one or more of these books.
Get 25% OFF Applied Ballistics Books! Use code: READ2024 at checkout.
A few seasons back, Forum member Rick from Louisiana (aka RMulhern) rigged up a fantastic target for long-range shooting. Rick, a long-time competitive Palma shooter, had a large 72″x72″ steel target fabricated with two separate center rings that are equivalent to the official paper Palma/Creedmoor target. He says he’s “shot a lot of Palma on that target, as well as lots of Black Powder Cartridge (BPCR) rounds”. The big steel target works great when Rick shoots his Sharps 45/110 BPCR at 800 to 1000 yards. The large steel background (painted white) helps Rick see and hear his hits. If you understand the high-arching trajectory of 500+ grain projectiles shot from a 45/110, you know it can take a few rounds to get Point of Impact dialed in.
Rick reports: “These are two of my favorite rifles to shoot: a M1874 Shiloh Sharps in caliber 45/110 (2 7/8) made in Big Timber, Montana by Kirk Bryan and family. The other is a 6.5×47 Lapua on a blue-printed M700 action with 1:8.5″-twist Krieger barrel and F5 McMillan Tactical stock. Many of the shooters that take up BPCR have a tendency to get away from their smokeless powder rifles in favor of the blackpowder game. Frankly I have the best of both worlds as I enjoy shooting both (smokeless and BPCR), although I must admit that I probably spend the majority of my time on the range with the Sharps rifles these days.” (Rick’s pretty good with his Sharps by the way — he recently shot a 95, 96, and 100 (clean) for 3×10 shots at 800 yards.)
Gongzilla: $1000 Worth of Steel with Three Plate Layers
Rick tells us: “Here’s the deal — everything is steel! The large plate is 72″x72″ and the black bull is 44″ diameter. The 20″-diameter central white bull is made from 1/2″-thick AR400 bull-dozer plating. That’s the same size as the regulation Palma/Creedmoor paper target. The white square and black bull are 3/8″-thick mild steel. Plates are off-set 2″ from each other. I welded a 2″ length of square tubing to the back of both plates and the bolt slides through and is attached to the large plate. I used 2 3/8″ upset tubing (oil field pipe) for the holder framing.” Rick says he invested about $1000.00 in metal for the target, but that was 15 years ago. Today the steel would be much more expensive.
Rick says the AR400 armor plate in the center bull is very strong: “You can shoot a .338 Lapua Magnum at 200 yards and it won’t damage the center bull”. The mild steel works well for the cast bullets Rick uses with his Sharps 45/110. Also, Rick says the mild steel is rugged enough for 6.5mm and .308 hollowpoint match bullets, if you’re at least 500 yards away. However, Rick told us, “If I would make [the target] again, I would make the black bull AR400 as well. [That way] you would never have to worry about big dents or beating the plate up at any distance. The AR400 is very tough steel. You can shoot a Sierra or Lapua HP bullet and they will just splatter.”
Rick told us: “I built this target with off-set clanger plates. The white clanger is AR400. Bullets just splatter!” Does he worry about hitting the bolt head? Not at all. Rick says: “When I hit the bolt head, I break my arm patting myself on the back!”.
Monitoring Barrel Wear with Borescope
David Tubb Biography Video
This 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.
Some say that a higher fill ratio is good because it prevents the powder from settling differently in the case (which could lead to inconsistent ignition and greater MV SD). This explanation sounds good, and went unchallenged for a long time. However, Applied Ballistics has done some interesting testing that sheds new light on the density issue.
A few seasons back, Forum member Rick from Louisiana (aka RMulhern) rigged up a fantastic target for long-range shooting. Rick, a long-time competitive Palma shooter, had a large 72″x72″ steel target fabricated with two separate center rings that are equivalent to the official paper Palma/Creedmoor target. He says he’s “shot a lot of Palma on that target, as well as lots of Black Powder Cartridge (BPCR) rounds”. The big steel target works great when Rick shoots his Sharps 45/110 BPCR at 800 to 1000 yards. The large steel background (painted white) helps Rick see and hear his hits. If you understand the high-arching trajectory of 500+ grain projectiles shot from a 45/110, you know it can take a few rounds to get Point of Impact dialed in.
