Ask 10 shooters about barrel cleaning and you’ll get 10 different opinions. This reflects that fact that different fouling problems demand different solutions. For example, solvents that work well for copper may not be the best for hard carbon (and vice-versa). To come up with the right solution, first you must understand the nature of the fouling in your barrel.
The debate about the proper care of a match barrel is a hot one, spiked with folklore and old wives’ tales, Lohman said. He and his staff set out to set the record straight: “We tried to interject some science into the discussion of cleaning a match barrel,” he explained. In his article, Lohman writes:
Why worry about a little barrel fouling when the throat is subjected to a brutal 5,600° F volcano at 55,000 PSI? To investigate these and other questions about taking care of a match barrel, we spoke with a dozen experts and share their knowledge in this first of a series of articles.
After listening to folks who shoot, build barrels or manufacture cleaning solvents for a living, we concluded that even the experts each have their own unique recommendations on how to care for a match barrel. But they all agree on one thing — the gun will tell you what it likes best. Because the life expectancy of a match barrel is about 1,500 to 2,500 rounds, the objectives of cleaning one should include: preserve accuracy, slow the erosion, and remove fouling — all without damaging the gun. This article doesn’t claim that one cleaning method is better than the next. Rather, we set out to interject a little science into the discussion and to share some lessons learned from experts in the field.
For more Shooting Sports USA articles, visit www.ssusa.org.
John Krieger Interview with AccurateShooter at SHOT Show:
Share the post "Barrel Care and Maintenance — Expert Advice"
Every rifle shooter should have access to a borescope. These devices reveal the condition of the inside of your barrel. Do you have a carbon ring problem? Is there jacket fouling near the muzzle? Are the edges of your lands worn away? All these common conditions can be revealed by a quality borescope.
UPDATE: MSRP will be under $300.00 and the unit should be available in March. Lyman told us: “We expect to have these available in March 2015. The price is expected to be $299.95. We will have this available for pre-order via our website in early 2015.”
And now new digital/optical technology makes the borescope easier than ever to use. For 2015, Lyman will introduce a new, affordable borescope that employs digital imaging (with a micro-camera). You no longer have to peer into an old-fashioned eyepiece. With the new Lyman borescope you can view the inside of your barrel via a small portable display screen. That’s handy. In addition, the borescope images can be displayed on your laptop or mobile device. Lyman provides a USB cable and software that allows you to view the borescope’s image output on your computer (plus you can record images for future reference). The unit fits bores .20 caliber and larger.
Sorry, we don’t have an exact price yet, but we’ve been told that this new product will be less expensive than current, conventional precision borescopes with glass-lens eyepieces. Here’s what Lyman says about it’s new product:
Lyman’s new Borescope provides active shooters with the means to carefully inspect the bores of their firearms for wear, throat erosion, tool marks, and other rifling or chamber damage, as well as for checking for fouling. The scope will fit 20 caliber and larger barrels and works with miniature camera technology. The display will show a clear image of the inside of the barrel and also allows you to take a photo of the bore. The image will storage on a standard SD card and can later be viewed on a computer or lap top. A separate cable (with USB connection) and CD are also available so that the Borescope rod can be connected directly to your computer or lap top. If you prefer to view only on your computer or lap-top, the Borescope rod is available separately (without the display unit) and plugs into the computer with a USB connection.
New product tip from EdLongrange. We welcome reader submissions.
Share the post "New Lyman BoreScope with Digital Screen and Output to Laptops"
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 recently did an interesting comparison test with two .243 Win 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.
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.”
Share the post "How to Wear Out a Barrel in One Afternoon…"
Do you think your borescope is a state-of-the-art bore inspection device? Well think again. There is now something way more advanced than any optical borescope. A new laser-equipped scanning device can map the entire interior surface of a barrel bore. With this new technology you can now examine every land and every groove, millimeter by millimeter, from the chamber to the tip of the muzzle. The most minute flaw in a barrel can now be revealed.
The new device is called the BEMIS-SC™ (for Barrel Inspection Machine Small Caliber). Operated by Chesapeake Testing and Laser Techniques Company (LTC), BEMIS-SC performs non-destructive laser-based mapping of gun bores. The BEMIS-SC currently works with .22 caliber to .50 caliber (5.56 – 12.7 mm) barrels. The BEMIS captures thousands of highly accurate data points over the full length of a barrel. The inspection can be completed in mere minutes, with scan results displayed in graphical, tabular, and 3D visual formats. Here is a barrel cross-section, as scanned by the BEMIS-SC:
Click for Full-Screen Version
Until the 1980s, gun tube inspection had to be conducted by hand using a manual “star” gauge, a process that would take hours and provide minimal data. Electronic gauges were eventually developed along with the video bore scope, but these systems were still limited to very few, low-resolution data points. That has all changed with the BEMIS™, a huge leap forward in technology that is capable of rapidly capturing thousands of precise data points.
Chesapeake Testing commenced BEMIS-SC barrel inspection services in September 2014. Testing is performed in Chesapeake’s commercial barrel inspection laboratory, located in Belcamp, MD, minutes from the U.S. Army Aberdeen Proving Ground. While testing is currently limited to .22 to .50 caliber barrels, Chesapeake Testing will accommodate both smaller and larger calibers in the future.
“We have always focused on building our company around very unique technologies. BEMIS™ has changed the industry in regards to the inspection of weapon systems. We are excited to be an exclusive partner with LTC in this industry and look forward to contributing to the future of this technology,” says Jim Foulk, founder and president of Chesapeake Testing.
Share the post "Beyond the Bore-Scope — BEMIS Laser Bore Inspection Machine"
A quality borescope is a pricey tool, but once you get to use one, it’s hard to imagine how you ever did without it. To learn how a borescope can help you diagnose barrel issues, you should read a Rifle Shooter magazine feature story, What the Eye Can See.
In this article, writer Terry Wieland explains how to inspect for defects in new barrels, how to recognize different kinds of fouling (in both barrels and brass), and how to spot throat erosion in its early stages. Terry uses a Gradient Lens HawkEye BoreScope. The current generation of HawkEyes can be attached to a still or video camera to record digital images of your bore. The most interesting part of the article is on the second page. There, author Wieland provides photos of various types of internal flaws that can appear in barrels. This will help you spot pitting, excessive land wear, rust damage, and damage from corrosive primers.
Wieland notes that BoreScopes aren’t just for barrels: “The borescope has other uses as well. It can be used to examine the interior of a cartridge case to look for the beginnings of a case separation or to examine the interior of a loading die that is giving you trouble. When you consider the number of tubular objects that play such an important role in rifle shooting, it is a wonder we were ever able to function without such a method of studying bores.”
This Gradient Lens video shows how to correctly borescope your barrel:
Share the post "Borescopes — What They Reveal May Surprise You"
A quality borescope is a pricey tool, but once you have the opportunity to use one, it is hard to imagine how you ever did without it. Rifle Shooter magazine has an excellent article about using a Gradient Lens Corp. HawkEye BoreScope.
In this feature, What the Eye Can See, writer Terry Wieland explains how to inspect for defects in new barrels, how to recognize different kinds of fouling (in both barrels and brass), and how to spot throat erosion in its early stages. The current generation of HawkEyes can be attached to a still or video camera to record digital images of your bore. The most interesting part of the article is on the second page. There, author Wieland provides photos of various types of internal flaws that can appear in barrels. This will help you spot pitting, excessive land wear, rust damage, and damage from corrosive primers.
Wieland also explains that BoreScopes aren’t just for barrels: “The borescope has other uses as well. It can be used to examine the interior of a cartridge case to look for the beginnings of a case separation or to examine the interior of a loading die that is giving you trouble. When you consider the number of tubular objects that play such an important role in rifle shooting, it is a wonder we were ever able to function without such a method of studying bores.”
Share the post "BoreScope Story Shows Different Types of Fouling"
If you’ve ever used a borescope to inspect a rifle barrel, you know how valuable these tools can be. No other device lets you see the true condition of your barrel’s lands and grooves, from the throat all the way to the crown. For many of us the question isn’t whether we want and need a borescope, but whether we can afford one. Luckily, MidwayUSA has made it easier to acquire a quality Hawkeye borescope. Currently, MidwayUSA is offering a special 17″ Hawkeye Borescope “Limited Edition Kit” for just $639.99. That’s about $110.00 less than the regular price for the Deluxe Kit. The more expensive model comes with a fitted aluminum case while the Limited Edition Kit ships in a cardboard box.
Standard features of the economical Limited Edition are a 17″ precision stainless steel optical tube with advanced fiber optics, 25x magnification, high intensity (H.I.) light source with batteries, and 90-degree mirror tube, which provides a full 360-degree view of the bore’s interior. This borescope accommodates 17 caliber and larger with the standard mirror tube, and 22 caliber and larger with the 90-degree mirror tube. Optional accessories are a 90-degree eyepiece, and a rechargeable Nova light source which is 8 times brighter than the standard H.I. light source. NOTE: the Limited Edition Kit does have a 90-degree mirror, but not the 90-degree viewing eyepiece. You don’t want to confuse these two components.
MidwayUSA has the Deluxe Hawkeye Borescope Kit on sale for $719.99 through the end of February. This is $30.00 off the normal $749.99 price. The components are similar to the Limited Edition Kit, but the Deluxe Kit includes a high-quality, lockable aluminum hard-case. The 90-degree angled eyepiece, Midway item 181455, costs an additional $274.95, and fits both Deluxe and Limited Edition models.
Share the post "Midway Offers Discounts on Hawkeye Borescopes"
Monitoring Barrel Wear with Borescope
The new device is called the BEMIS-SC™ (for Barrel Inspection Machine Small Caliber). Operated by 
A quality borescope is a pricey tool, but once you get to use one, it’s hard to imagine how you ever did without it. To learn how a borescope can help you diagnose barrel issues, you should read a 
A quality borescope is a pricey tool, but once you have the opportunity to use one, it is hard to imagine how you ever did without it. 
If you’ve ever used a borescope to inspect a rifle barrel, you know how valuable these tools can be. No other device lets you see the true condition of your barrel’s lands and grooves, from the throat all the way to the crown. For many of us the question isn’t whether we want and need a borescope, but whether we can afford one. Luckily, 
MidwayUSA has the Deluxe Hawkeye Borescope Kit on sale for $719.99 through the end of February. This is $30.00 off the normal $749.99 price. The components are similar to the Limited Edition Kit, but the Deluxe Kit includes a high-quality, lockable aluminum hard-case. The 
