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December 23rd, 2025

Getting Vertical Flyers? Check Your Firing Pin and Ignition System

USAMU Handloading vertical dispersion ignition rimfire accuracy firing pin
Top to bottom: Remington firing pin assembly with ISS, Tubb SpeedLock alloy-composite system without ISS (current versions have dual, opposite-wound springs), and Remington short action firing pin assembly without ISS.

The U.S. Army Marksmanship Unit regularly publishes technical articles on the USAMU Facebook page. One informative USAMU article covered mechanical issues and related ignition irregularities that can cause vertical fliers even with good ammunition in an otherwise excellent rifle. We highly recommend you read this article, which offers some important tech tips.

USAMU handloading hump day

Vertical Dispersion: Mechanical/Ignition Issues?

Poor or inconsistent ignition has long been known to be one of the “usual suspects” when one encounters vertical fliers that just shouldn’t be there. By having a sense of some of the basic principles involved, and a few basic areas to check, the shooter may avoid colsiderable frustration, not to mention time, expensive loading components and barrel wear.

USAMU Handloading vertical dispersion ignition rimfire accuracy firing pinIs your well-built rifle of high-quality components plagued with vertical fliers across more than 1-3 handload combinations? Consider the bedding, crown and scope/sight mounts. Are they correct? If so, then you might check for ignition issues before boldly undertaking an extensive, expensive, and quite possibly fruitless quest for the “magic handload”.

SEEING IS BELIEVING: While the author had been aware for many years that poor ignition should be considered and ruled out when dealing with vertical fliers in an otherwise-excellent rifle, actually seeing the problem and its almost instantaneous cure really drove the lesson home.

He was working with a “dot” rifle – a .22 LR match rifle that really stacked bullets into little piles at 50 yards and beyond. With one lot of ELEY Tenex, it produced consistent “bughole” groups at 50, but with another, selected lot of Tenex, similar groups were regularly ruined by single, vertical fliers that did not appear in other rifles. Rather than spending days burning up expensive, select ammunition looking for “magic lots”, he contacted a well-respected rimfire gunsmith and explained the situation.

Without so much as batting an eye, the highly-experienced ‘smith tore into the rifle’s action, and quickly found the cause(s) of the problem. He discovered a demonstrably weak firing pin spring, plus a chip out of the face of the firing pin where it contacted the cartridge rim.

After replacing and tuning the offending parts, the rifle immediately began shooting tiny, bughole groups with the previously “unacceptable” lot of Tenex. Centerfire rifles can also benefit from ensuring positive, consistent ignition. A wise riflesmith is literally worth his weight in gold!

So, what are some issues we as shooters can inspect in our rifles to help determine if ignition woes could be part of our problem? At the club level, ask yourself if that “experienced” Remington, Winchester 70, or even Springfield-based match bolt gun you’re using is still running its’ original 40-80 year-old factory striker spring? If so, a new replacement is cheap insurance against current or future problems. (And BTW, it might be best to stick to the normal, factory-spec spring weight. A super-powerful spring can cause vertical, just as a weak one one can.) Along with that, a routine check for proper firing-pin protrusion is a quick preventive measure that can rule out potential issues.

Other areas to consider are the centering and consistency of the firing pin’s operation in the bolt. Admittedly, with the increasing use of precision-machined custom actions, this is becoming less an issue every day. Below is the firing pin assembly from a custom BAT action:

USAMU Handloading vertical dispersion ignition rimfire accuracy firing pin

However, particularly with factory actions, a very quick and easy check is to remove the bolt, let the firing pin go forward, and look at the firing pin tip through the firing pin hole. Is the tip off-center in the hole, and possibly striking it as it moves forward? Is the hole out-of-round or burred from being struck repeatedly? If so, a trip to the riflesmith is likely in order.

Similarly, machining issues in the bolt/firing pin system can lead to rough and erratic firing pin movement, in which the firing pin drags against an internal surface of the bolt. In high-quality rifles these issues are relatively rare, but not unheard-of, and it takes mere minutes to rule them out. It may be worthwhile to remove the cocking piece/firing pin/spring assembly and look for any unusual gouges, dings, peening, burrs or signs of abnormal wear.

This task is especially easy with Winchester 70s, Springfields, and the similar Mauser 98s, involving little more than the push of a button and unscrewing the cocking piece assembly. This is just one of the many reasons these tried-and-true actions have earned such a loyal following in the field, among hunters who must maintain their rifles away from a shop.

USAMU Handloading vertical dispersion ignition rimfire accuracy firing pin

Particularly with older rifles, watch for and remove excess grease (or even Cosmoline!) from both the firing pin assembly and inside the bolt. This can help improve firing pin speed and consistency. Other bolt-action designs may need a take-down tool or other measures.

As part of this inspection, AFTER ENSURING THE RIFLE IS UNLOADED, slowly cock the rifle, dry-fire, and repeat several times. Listen carefully near the action for inconsistency in the sounds it generates. Does the striker falling make the same sound each time? Do you hear or feel grinding upon operation? If so, where?

Be sure to check the operation of the cocking piece (bolt shroud), firing pin within the bolt shroud, the cocking piece cam and the rear of the bolt body where the cocking piece cam operates. As with our examination for abnormal wear marks discussed above, look for marks indicating roughness or a possible need for light polishing. Then, clean and lightly grease the bearing surfaces while you’re at it.

Remington 700 bolt shroud and cocking cam
Rem 700 bolt cocking cam

These are relatively easy checks that shooters can undertake to perform a preliminary inspection on their own. Other mechanical issues can also cause ignition issues, chiefly centered around the action of the trigger, sear and sear spring. If these are suspected, a trip to an experienced, qualified riflesmith for diagnosis is recommended. We hope you find this information helpful! Join us again next week, and in the meantime, enjoy the shooting sports safely!

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December 23rd, 2025

Quickly Determine Your Dominant Eye with This Simple Test

6.5 Creedmoor Annealing

Shooting Sports USA Eye dominanceDo you know which one of your eyes is dominant? It’s easy to determine eye dominance with a simple exercise. Pick an object about 6-10 feet away (a light switch or door knob works well). Make an “OK” sign with your right hand (see photo) and hold that about 18″ from your face. Now, with both eyes open, look through the circle formed by your thumb and index finger. Center the circle on the object, so you can see the object in the middle.

Now, here’s the important part — while still holding your hand up, centered on the object, first close your right eye. If you don’t see the object anymore, then your right eye is dominant. If you still see the object, then repeat the procedure with the left eye shut and right eye open. If you don’t see the object when your left eye (only) is closed, then you are left-eye dominant.

6.5 Creedmoor AnnealingThe digital archives of Shooting Sports USA contain many interesting articles. A while back, Shooting Sports USA featured a “must-read” expert Symposium on Eye Dominance, as it affects both rifle and pistol shooting. No matter whether you have normal dominance (i.e. your dominant eye is on the same side as your dominant hand), or if you have cross-dominance, you’ll benefit by reading this excellent article. The physiology and science of eye dominance is explained by Dr. Norman Wong, a noted optometrist. In addition, expert advice is provided by champion shooters such as David Tubb, Lones Wigger, Dennis DeMille, Julie Golob, Jessie Harrison, and Phil Hemphill. NOTE: If the story doesn’t open at the links, go to the ssusa.org home page first, indicate you are over 18, and then CLICK HERE.

Top Rifle Champions Talk About Eye Dominance:

David Tubb — 11-Time National High Power Champion
I keep both eyes open, always. Some use an opaque blinder in rifle or shotgun shooting. If you close your non-dominant eye, you will not get as good a sight picture. If your aiming eye is not your dominant eye, you have even more of a problem to overcome.

Lones Wigger — World, National and Olympic Champion Rifleman
Shooters should try to use the dominant eye unless the vision is impaired and the non-dominant eye has better vision. You should always shoot with both eyes open since this will allow the shooting eye to function properly.

Dennis DeMille — National Service Rifle Champion
I close my non-shooting eye initially. Once I pick up my sight picture, it’s not something I focus on. For those that use a patch, I recommend that they use something white to block their view, rather than cover the eye.

Bruce Piatt — 2025 World Action Pistol Team Championship — Member of Winning Team CMP-USA
Some shooters, especially those with nearly equal or cross-dominance, will naturally find themselves squinting one eye. When anyone does this, you are also closing your dominant eye to some extent and adding stress to your face.

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December 22nd, 2025

Loading Precision Centerfire Pistol Ammunition

USAMU Service Pistol Handgun Tip Advice Reloading

If you want to compete in top handgun competitions such as the CMP matches at Camp Perry, you’ll need good ammo that has low ES, consistent powder charge, uniform cartridge OAL, and consistent crimp. Every with action pistol matches you’ll want ammo that is very uniform. One miss on steel can mean losing a match. The following USAMU article provides rock-solid pistol reloading advice, explaining how to load accurate, reliable handgun ammo.

USAMU Service Pistol Handgun Tip Advice Reloading

The U.S. Army Marksmanship Unit (USAMU) fields pistol teams as well as rifle and shotgun competition squads. Consequently the USAMU’s Reloading Shop loads tens of thousands of pistol rounds every year. In this article, the USAMU’s handgun experts talk about reloading for handguns — with smart tips on how to achieve superior accuracy with 100% reliability. This article, which offers important insights on COAL, primers, crimps and more.

USAMU Service Pistol Handgun Tip Advice Reloading

Precision Pistol Reloading — Recommended Methods

Optimize the Taper Crimp
One often-overlooked aspect of handloading highly-accurate pistol ammunition is the amount of crimp and its effect on accuracy. Different amounts of taper crimp are used with various handloads to obtain best accuracy. The amount is based on bullet weight, powder burn rate and charge, plus other factors. It is not unusual for our Shop to vary a load’s crimp in degrees of 0.001″ and re-test for finest accuracy.

USAMU Service Pistol Handgun Tip Advice ReloadingUse Consistent Brass
Brass is also important to pistol accuracy. While accurate ammunition can be loaded using brass of mixed parentage, that is not conducive to finest results, particularly at 50 yards. It is important for the serious competitor/handloader to use brass of the same headstamp and ideally one lot number, to maximize uniformity. Given the volumes of ammunition consumed by active pistol competitors, using inexpensive, mixed surplus brass for practice, particularly at the “short line” (25 yards), is understandable. However, for the “long line” (50 yards), purchasing and segregating a lot of high-quality brass to be used strictly for slow-fire is a wise idea.

Importance of Uniform COAL
Uniformity of the Case Overall Length (COAL) as it comes from the factory is also important to achieving utmost accuracy. More uniform case lengths (best measured after sizing) contribute to greater consistency of crimp, neck tension, ignition/burn of powder charge, and so on. Cartridge case-length consistency varies from lot to lot, as well as by maker. Some manufacturers are more consistent in this dimension than others. [Editor’s note: It is easy to trim pistol brass to uniform length. Doing this will make your taper crimps much more consistent.]

Primers and Powders — Comparison Test for Accuracy
Pay attention to primer brands, powder types and charges. Evaluating accuracy with a Ransom or other machine rest at 50 yards can quickly reveal the effect of changes made to handload recipes.

Bullet Selection — FMJ vs. JHP
Bullets are another vital issue. First, there is the question of FMJ vs. JHP. A friend of this writer spent decades making and accuracy-testing rifle and pistol bullets during QC for a major bullet manufacturer. In his experience, making highly-accurate FMJ bullets is much more difficult than making highly-accurate JHPs, in large part due to the way the jackets are formed. Small die changes could affect accuracy of FMJ lots dramatically.

The CMP now allows “safe, jacketed ammunition” in Excellence-in-Competition (EIC) Service Pistol matches, although wadcutter ammunition is prohibited. Thus, the option to use very accurate JHP designs simplifies the life of CMP Service Pistol shooters in pursuit of the Distinguished Pistol Shot badge.


reloading .45 acp pistol

Hopefully, these tips will be helpful to any pistol shooters interested in accurate handloads, not just “Bullseye” shooters. Small tweaks to one’s normal routine can pay big dividends in improved accuracy and make practice and competition more rewarding. Stay safe, and good shooting!

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December 21st, 2025

Recoil Energy Comparison — .223 Rem vs. 6mmBR vs. .308 Win

6mmBR NormaMany visitors to the site ask us, “I’ve got a .223 and .308. What will a 6mmBR Norma (6BR) give me that I’m not getting already?” Well first you will probably average consistently smaller groups than your current .223 or .308 rifle (assuming the 6BR has a quality barrel and trigger). A good .308 Winchester can be superbly accurate, no question about that, but the lesser recoil of the 6BR works in the shooter’s favor over a long string of fire. Even with a Rem 700 or Savage action factory action, a 6BR with a benchrest stock, premium barrel, and a high-quality chambering job should deliver 5-shot groups in the high twos to mid-threes, provided you do your job. We have one 6BR rifle that shoots Lapua factory-loaded 6BR ammunition in the low twos and high ones. That’s exceptional, we admit, but it still shows how the 6BR is an inherently accurate cartridge, even with factory loads.

Compared to a .223, the 6BR offers a much better selection of high-BC projectiles, and will deliver considerably more power on the target. So it’s a better choice for hunters and 600-yard benchrest shooters. Compared to the .308 Win shooting 168gr MatchKings, a 6BR shooting 105-107gr bullets offers better ballistics all the way out to 1000 yards. Plus, for most people, the 6BR is just easier to shoot than a .308 Win. Recoil is less than half of the .308 Win cartridge. Both the .308 and 6BR chamberings offer good barrel life, but the 6BR uses 15-18 grains less powder, saving you money. On the other hand the .308 Win is the designated cartridge for F-TR and Palma shooting, so it may be a more versatile chambering for Long-Range competition. So which would we choose between the 6BR and the .308? Actually we think you should have both. The 6BR is a favorite cartridge out to 500 yards, and we like the .308 Win for F-TR. The .308 Win has shown outstanding accuracy, as displayed last week at the NRA F-class Nationals in Arizona.

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December 19th, 2025

Sierra & Barnes Release Advanced New TrueData Ballistics App

truedata ballistic software app apple android 2025

truedata ballistic software app apple android 2025Sierra and Barnes Bullets have released a new FREE Ballistic Calculator App, called TrueData™. With Doppler-verified ballistics, precise environmental inputs, and tools that match real-world performance, TrueData™ equips hunters and shooters with the ability to make confident shot decisions and achieve data-driven accuracy. The TrueData App has many notable features including the ability to access atmospheric data reports and a unique Virtual Rangefinder that helps you estimate distances. The App also holds multiple rifle profiles. Visit Sierrabullets.com or Barnesbullets.com to learn more.

This impressive new TrueData App is available for both Android and Apple (iOS) mobile devices. The TrueData App is FREE on Android and Apple stores and can be found by searching for “TrueData Ballistics” in the App stores.


Download TrueData for Android | Download TrueData for Apple

TrueData App Features:

Doppler-Verified Ballistic Library: Instant access to accurate Doppler-verified data for Sierra and Barnes Bullets. Select from multiple drag models, including Doppler-measured curves for supported bullets. These curves capture true bullet behavior across the flight path far beyond the approximations of G1 or G7. With 80+ Doppler profiles and ongoing expansion, the solver adapts to exact projectiles. G1/G7 values autofill for all bullets where Doppler data is not yet available.

Ballistic Coefficient (BC) and Velocity Truing: BC and velocity truing tools to align ballistic predictions with real-world impacts.

Multiple Rifle Profiles: Stores multiple rifle profiles so users can switch guns without re-entering data.

Intuitive Heads-up Display: A unified interface brings together trajectory data, environmental updates, and shot solutions in an intuitive HUD. Every adjustment is instantly reflected on screen.

Bluetooth Connectivity: Automatically imports precise atmospheric data from external meters like WeatherFlow and Skywatch BL for shooters who demand exact inputs without manual entry.

Virtual Rangefinder: App helps users estimate distance when scouting terrain or setting targets without a physical laser rangefinder.

Target Card: Build and store preset targets with their distances and holds, helping the shooter move efficiently between known landmarks or steel targets.

Live Environmental Inputs: Pulls real-time atmospheric data from current locations to keep ballistic solution aligned with actual conditions.

Ammunition Library: App has detailed ballistic profiles for Barnes factory-loaded ammunition.

Stage Timer: Simple countdown timer for practicing transitions, positional shooting or timing drills.

truedata ballistic software app apple android 2025

About the Creation of the TrueData App — and Future Updates
“2025 was a big year for product development at both Sierra and Barnes. The TrueData app has been a long time coming — we built, we tested, we refined and we think this App is the most complete and user-friendly ballistic calculator available. We ask that everyone download it, put it through the paces and submit feedback to help us make this thing even better.” — Andrew Sparks, Sierra V.P. of Marketing & Business Development.

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December 18th, 2025

FREE Printable Targets for Practice and Load Development

AccurateShooter Free downloadable print targets shooting paper PDF

The type of targets you use can make a difference during load development and training — helping you align your crosshairs, estimate group size visually, and also record load data/gun type. Here we provide selection of FREE printable precision and training targets. This selection includes popular load development targets AccurateShooter created as well as other useful grid targets. You can download ALL these targets as PDF files and then print them out on 8.5×11″ heavy paper.

AccurateShooter.com offers a cool page with over 50 FREE downloadable targets. You’ll find all types or FREE targets — sight-in targets, varmint targets, rimfire targets, bullseye targets, tactical targets, load development targets and more. CLICK HERE for all our free targets, including our LOAD DEV target.

FREE Accuracy Precision Rifle Shooting Target
Right-Click target image to download printable PDF.

We created the above target a decade ago. Since then it has been used by tens of thousands of shooters. It has proven very popular as a load development target, since all your load data fits neatly in the boxes under each target. In fact this target is being employed by both rifle-makers and barrel-makers (including Criterion) to test their products. The target was designed for aiming efficiency. The diamonds have 1/2″ sides and you can align your cross-hairs on the horizontal and vertical lines. It is a clean design that is easy to see even at 200 yards with a 20X scope. When we test, we usually crank in a little elevation, setting the point-of-impact higher, so that our shots fall in the gray circles. That way you leave the squares intact for precise aiming.

Load Development and OCW Target

AccurateShooter Free downloadable print targets shooting paper PDF
Right-Click target image to download printable PDF.

Versatile Targets with Multiple Aiming Points
We use the two targets below for load development and precision practice. For the left target, use the corners of the diamonds to align your cross-hairs precisely. The circle dot target (on the right) can also be used for informal rimfire competition at 50 yards. Right-Click Each Target to Download Printable PDFs.

FREE Accuracy Precision Rifle Shooting Target FREE Accuracy Precision Rifle Shooting Target

Know-Your-Limits Target for Rimfire Training & Fun Matches

Here’s a rimfire training target with “big to small” target circles. Start with the largest circles, then move to the smaller ones in sequence. This systematic drill provides increasing challenge shot-by-shot. Novices often are quite surprised to see their accuracy improve as they move from bigger to smaller aiming points. That provides positive feedback — always a good thing.

Right Click and “Save as” to download printable PDF versions of target.

Five Diamond Grid Targets

Here’s a popular grid target with multiple red diamond aiming points. The background includes a grid pattern with 1″ squares — that helps to quickly estimate group size through your scope. We recommend using a color printer for this target so the diamonds and grid lines are bright red.

AccurateShooter Free downloadable print targets shooting paper diamond grid red PDF
CLICK HERE TO DOWNLOAD PDF TARGET

If you don’t have a color printer, there are similar color grid targets available on Amazon for modest prices. For example, the Champion Redfield Target 10-Pack is currently on sale for just $3.00 on Amazon. Or get the larger 17″x25″ Dynamic Shooters 5-Diamond Grid 50-pack for $21.98 on Amazon.

RED Center Pistol Target

Here’s a NRA-type target for pistol shooting. The bright red center helps when shooting indoors because well-placed bullet holes are much more visible. This target includes data entry boxes to record gun type, score, and load data. This is one of many good free targets available at Targets4free.com.

targets4free free target NRA pistol red center rings

jessie harrison pistol photo profile target

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December 18th, 2025

If You Want to Gift a Gun, You Need to Understand the Law

firearm gun gift law rules NSSF
Image Courtesy NSSF. This story is based on an NSSF Article.

‘Tis the season of gift-giving (Christmas Day is just a week away). Perhaps you’re considering giving a a first rifle to your grandson or perhaps a carry pistol to a spouse. When making a gun gift to a friend or family member, however, there are some very important legal considerations. Also the rules on firearms gift transfers vary from state to state. Bottom line here — you need to know the law BEFORE you deliver that shiny new firearm to a family member, close friend, or relative.

The first thing to remember if you’re thinking about giving someone a gun is that … it’s a gun! You already know that ownership of a firearm brings with it some serious legal and ethical obligations that other consumer products don’t. So let’s look at some questions you may have about giving a firearm as a gift.

firearm gun gift law rules NSSF
Image Courtesy NSSF

ATF Firearms gun giftsThe first question you have to ask is whether the intended recipient can legally own the firearm where he or she lives. With more than 20,000 different gun laws on the books, even the kinds of firearms that law-abiding citizens can own vary from place to place. For example, juveniles (under age 18) generally speaking are precluded by law from possessing a handgun. Check out the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) website for an overview of local laws and, whatever you do, don’t forget that you can never under any circumstances transfer a firearm to someone you know — or have reasonable cause to believe — legally can’t own one. That’s a federal felony, so be careful.

There’s no federal law that prohibits a gift of a firearm to a relative or friend who lives in your home state. Many states — including California, Colorado, Connecticut, Delaware, New York, Oregon, Rhode Island, Washington State and the District of Columbia — require you to transfer a firearm through a local FFL-holder so an instant background check will be performed to make sure the recipient is not legally prohibited from owning the gun. Maryland and Pennsylvania require a background check for private party transfer of a handgun. There are exceptions, so it’s important to check the law of your state or ask your local firearms retailer.

ATF Firearms gun giftsConsider a Gift Card Instead of Direct Gift
The ATF recommends that if you want to give someone a new firearm, rather than going to a gun store and buying the gun on your own, consider instead purchasing a gift certificate/card from your favorite gun retailer. Then give that gift card as the present. That way the recipient can choose the exact gun he or she wants, and there’s no question about who is “the actual buyer of the firearm”, which is a question any purchaser must certify on the Federal Form 4473 at the time of purchase. The Gift Card option avoids any “straw purchaser” issues. Many reputable vendors offer gift cards, including Brownells and MidwayUSA.

Brownells midwayusa gift card

Intra-Family Transfers and Antique Arms
What if you want to give “Old Betsy,” your favorite old deer rifle, to your son or daughter as a college graduation gift? Again, in some states, there’s no law that says you can’t, but many states require even intra-family transfers to go through a licensed dealer. Remember, you can never transfer a firearm directly to another person who is a resident of a different state. In that case, you must transfer the firearm through a licensed dealer in the state where the person receiving the gift resides.

Using a gift certificate from a firearms retailer near where the recipient lives might be a good solution. Be safe and check with an in-state FFL dealer before you give any firearm to a friend or family member.

(more…)

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December 16th, 2025

Applied Ballistics Tests Reveal BCs of 50 Rimfire Ammo Types

.22 LR Rimfire Ammunition testing Bryan Litz Applied Ballistics Eley
Photo shows Bryan Litz (on right) and tester Mitchell Fitzpatrick. Bryan said: “Only 2,445 rounds to go! We’re testing over 50 ammo types in five different twist barrels… science can be exhausting!”

Do you know the actual BC (Ballistic Coefficient) of your rimfire ammunition? Well Applied Ballistics has the data, thanks to a comprehensive, marathon ammo testing session. Some years back, in an effort to determine the “real world” BCs of various rimfire ammo types, Bryan Litz and his team at Applied Ballistics did an extraordinary, in-depth shooting test. Litz and company tested over fifty types of .22 LR ammo, using five different twist-rate barrels. This was one of the most comprehensive and through rimfire ammo tests ever done.

.22 LR Rimfire Ammunition testing Bryan Litz Applied Ballistics Eley

.22 LR Rimfire Ammunition testingBryan tolds us: “We tested many types of .22 rimfire ammo for the 2nd Edition of the Ballistic Performance of Rifle Bullets book. We used a pair of Oehler chronographs to measure velocity at the muzzle (MV) and velocity at 100 yards.” With these numbers (average and SD) Bryan can calculate G1 BCs for all the 50+ types of rimfire ammo. What’s more, because every sample is shot through five different barrels (each with a different twist rate) Bryan can also determine how velocity is affected by twist rate.

The tests are primarily to determine velocities for BC calculations — this was not an accuracy test. Bryan explains: “Our tests are not really looking at accuracy, mainly because that’s so subjective to different rifles. Our testing is primarily focused on measuring the BC of rimfire rounds from different twist-rate barrels. The MVs and BCs from the different twist test barrels was then published by Applied Ballistics in print books. Bryan Litz told us: “The .22 LR Rimfire data was originally published in Ballistic Performance of Rifle Bullets, 2nd Edition, which is now out of print. The 3rd Edition of that book doesn’t have rimfire data. The rimfire testing results and data were re-published in Modern Advancements in Long Range Shooting – Volume II (along with many other topics).

Bringing Science to the Rimfire World
Bryan’s goal with this project was to increase the rimfire knowledge base: “We hope to give the world of .22 LR rimfire a good dose of science. How is the BC of .22 rimfire ammo affected by barrel twist? Do subsonic rounds have more consistent BCs than supersonic or transonic rounds? What brands have the highest BCs? What brands have the most consistent MVs?”

.22 LR Rimfire Ammunition testing Bryan Litz Applied Ballistics Eley
Data from two Oehler chronographs is recorded in a computer. Ammo samples were tested in five (5) different barrels (of varying twist rates). Give credit to Dane Hobbs who supplied a test rifle, multiple barrels, and most of the ammo types for the test.

.22 LR at 300 Yards?
Bryan also conducted some longer range rimfire tests. His interesting findings have appeared in the Modern Advancements in Long Range Shooting book series. Bryan notes: “While .22 rimfire isn’t typically considered ‘long range’, we were able to consistently hit a two-MOA steel target at 300 yards with the trajectory predicted by AB software and the measured BC of some standard .22 LR rimfire ammo. The info we’’re generating may make it possible to push the range of target engagement for a round that’s not seen much advancement in many decades.”

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December 16th, 2025

Innovative Triangle Cleaning Patches Have Many Advantages

Rigel BoreSmith Brush Patch Jag Pyramid Triangle patches

Product innovation is all about “building a better mousetrap”, or in this case, building a better bore-cleaning patch. A real smart guy, Shane Smith, has invented a triangular patch that earned a patent. The U.S. Patent Office has awarded a utility patent for BoreSmith’s Triangle Patch™. This unique cleaning patch was designed by Shane Smith, a mathematician/physicist who employed his scientific and firearms knowledge to create innovative bore-cleaning products.

Rigel BoreSmith Brush Patch Jag Pyramid Triangle patchesBoreSmith’s Triangle Patch™ (aka Pyramid Patch) presents more cleaning surface area to the bore wall than does a conventional square or round patch (of equivalent size). At the same time, the unique geometry makes Triangle Patches much less likely to jam in the barrel. This is because the notches in the sides of the triangle allow the patch to sit more uniformly on the jag (without bunching up). Also the Pyramid patch is much less likely to jam due to pleating. One reason conventional patches get stuck is unwanted 5-layer pleating. The special notches in the Pyramid patch remove all or most 5-layer pleating. As a result the patch does not bunch up and this also reduces rod bowing.

The Triangle patch can be used with a standard jag but works best when paired with BoreSmith’s patented dual-diameter JagBrush. There are FOUR patch sizes: 17-20 Caliber, 22-27 Caliber, 27-35 Caliber, and 35-58 Caliber.

» Combo Kits with Triangle Patches and Dual-Diameter Brushes

Triangle Patch Function and Geometry Explained (See 1:18 time-mark):

NOTE: Despite what you may see in this video, you should ALWAYS insert brushes and patches from the chamber end first, using a fitted cleaning rod bore guide. With bolt-action rifles, NEVER insert a cleaning rod (with brush or jag) in through the muzzle. This may damage the delicate crown of your barrel.

The Triangle Patches work great with Boresmith’s patented dual-diameter bore brushes:

Triangle triangular patches boresmith
Triangle triangular patches boresmith

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December 14th, 2025

Selling Guns Online — Internet Classifieds and Online Auctions

Gunbroker shooters forum gun classified ads

online sales auctionsThese days, online gun Auctions and Classifieds attract more attention than ever. With so many folks accessing the internet daily, many gun owners find it easier to sell their firearms online rather than in the local gun store. Online selling opens up a much larger audience. With 80,800+ members in the AccurateShooter Forum, we have a very active gun Classifieds area. And then of course, there are the big dogs — Gunbroker and GunsAmerica. You’ll find tens of thousands of guns for sale on those big sites, but there are significant sale fees.

Before selling your stuff online, you should survey the major online sales and auction sites, comparing their fees and features. The costs are NOT all the same. For example, though you can list an item on Gunbroker for free, if the gun sells you may end up paying a LOT of money. Confirm this with the Gunbroker FEE Calculator. Using Gunbroker’s Fee Calculator we determined that, for a $3000.00 gun, the seller will pay $128.00 in fees! Yes, that’s for a single sale.

That’s why many sellers prefer to list their rifles on Benchrest.com, or on the AccurateShooter.com FORUM Classifieds. Currently, basic Accurate Forum members get two (2) free adverts in a 12-month period, while Gold and Silver members get unlimited classifieds for 12 months. A $30 Silver membership is less than you’d pay to sell one single $600 item on Gunbroker ($32.00 fee).

SEVEN TIPS for Selling Your Gear Online

1. Include Good, Sharp Photos: A custom rifle or expensive optic will sell two to three times as quickly, at a higher price, if you include good sharp photos. We can’t over-emphasize the importance of good photos. For all products, show multiple angles, and include the original boxes if you still have them. For a rifle, include detail shots as well as a photo of the complete gun.

online auction product selling accurateshooter forum classifieds

2. Resize Your Photos Before Posting: Half of users will probably be viewing your ads with a smartphone. So you don’t need huge photos. We recommend you size your photos down to 1000 pixels wide. This will make uploads more efficient and ensure the Forum server can handle the file sizes.

3. Be Fair and Complete in Your Description: Buyers appreciate honesty and thoroughness in product descriptions. Potential buyers want details. For a rifle, list the gunsmith, barrel-maker, round count, and provide the specifications. If the rifle has a winning competition history, say so. Always highlight the positives in your description, but you should disclose significant flaws. A buyer will be more willing to purchase if he thinks the seller is 100% honest.

4. Don’t Forget Contact Info: We’re amazed by how many adverts omit key contact info. In a forum classified ad, include a first name, e.g. “Ask for Dan.” We also suggest you list your residence city and state. Some buyers will prefer to buy from a seller in their home state. When communicating with a buyer, provide your phone number and email address. We recommend that all buyers and sellers actually talk live on the phone before concluding high-value deals.

5. Make the Price Attractive: Buyers, everywhere, are looking for good deals. If you want your item to move quickly, set the price accordingly and don’t expect top dollar. Check comparable listings and then discount by 10-15% if you want the item to move fast.

6. Include a Call to Action: Advertisements can be twice as effective if they include a “Call to Action”, i.e. a statement that directly inspires the potential buyer to respond. Sample calls to action are: “Free Shipping — today only.” Or, you can use a time limit: “Special Sale Price good ’til the end of the month”.

7. Always Follow ALL Applicable Laws: Even in states where private face-to-face gun sales are allowed, we recommend ALWAYS using an FFL for firearms transfers. This will protect YOU the seller. In addition, do your homework. Don’t sell to a buyer in a city or state (such as California) state or city where the particular firearm (such as an AR15) may be restricted

Classified Advert vs. Auctions
For benchrest, F-Class, Silhouette, Tactical or High Power rifles, you may get the best results posting a For Sale ad on a Forum that caters to the right discipline. You want your ad to reach the right audience. On the other hand, a GunBroker.com auction will have tens of thousands of potential buyers. Realistically, however, if you price your rig attractively, it should sell quickly in a Forum Classified Advert. Plus with conventional Classifieds, you can sell immediately — you don’t have to wait for the auction to end. For scopes and reloading equipment (but not firearms, actions, barrels etc.), also consider eBay, which still allows many gun-related items.

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