The Bergara B14-R is a high-quality, accurate .22 LR rimfire bolt-action rifle. The rifle’s accuracy and functionality make it a good choice for NRL22 competition. And with stock geometry and ergonomics that duplicate a full-size centerfire rifle, the Bergara B14-R is also an excellent choice for cross-training. By training with a rimfire rifle, you can get essential “trigger time” while saving money. Good centerfire ammo can cost $1.50 per round or more. Decent rimfire ammo can be found for $6.00 per 50rd box. That’s just 12 cents per round.
Click above photo to load full-screen high-rez image.
To find out how well the Bergara B14-R can perform, Gavin Gear of UltimateReloader.com recently tested a B14-R (carbon-covered barrel version) at his private range. Using a variety of Lapua and SK Ammo, this rig delivered impressive results. Watch this video to see the B14-R in action.
“The B14-R is a great shooter, and for me it felt very familiar. Just like shooting one of my centerfire match guns, but without all of the recoil!” — Gavin Gear
Gavin reports: “At the 2020 SHOT Show, Bergara announced the B14-R trainer. The concept? Take the B14 HMR series centerfire rifle formula, and adapt it for rimfire. The result is a .22 LR rifle you can shoot all day long without wearing out your arm or your wallet! It looks/feels like a centerfire long-range precision rifle. And that’s what makes this rifle a GREAT training platform for serious long-range shooters.”
The B14-R comes with a 18″-long 1:16″-twist threaded barrel. The single-stack .22 LR magazine is the same size as a short action AICS mag. The Bergara B14-R shares Rem 700 specs, so it is compatible with Rem 700 stocks and aftermarket triggers. Weight with standard barrel is 9.2 pounds without optics, or 8.1 pounds for the carbon version seen here. MSRP for basic version is $1150.00 and street price is $950.00.
Gavin told us: “I couldn’t wait to get the B14-R out to my new 50-yard ridgeline range to see how it would perform with premium .22 LR ammunition. Once I shot this rifle suppressed, I didn’t want to take off the can. The 18″ barrel really works well with the SilcencerCo suppressor to help keep the overall length reasonable, and balance is spot-on.” NOTE: This rifle has the optional carbon-covered barrel.
As tested, the rifle was equipped with these components:
Athlon Midas TAC 6-14x50mm FFP Scope with MK Machine lever, Lone Star bubble level SilencerCo Omega 300 Suppressor with 1/2×28 direct thread mount Harris S-BRM 6″-9″ Bipod with aftermarket swivel tension lever
Outstanding Accuracy with Lapua and SK .22 LR Ammo
Remarkable accuracy for a factory rifle earned this Bergara its Sunday GunDay selection. Shooting with bipod and rear sandbag, Gavin was able to achieve multiple, sub-half-inch groups at 50 yards. The best group shot with SK Match ammo was a remarkable 0.22″ as measured by Ballistic-X software (see below). That’s an impressive 0.42 MOA at 50 yards. If you watch the video above, starting at 14:40 time-mark, you can watch Gavin shoot that 0.22″ group.
Here are two more groups, both under 0.5″ at 50 yards. Lapua Center-X on left, SK Match on right. Gavin says that “with good conditions, 0.35″ 5-shot groups at 50 yards are easily attainable.”
B14-R Trigger Tested with TriggerScan TS-11
Gavin tested the Bergara’s trigger with the TriggerScan TS-11 from DVORAK Instruments, a very sophisticated, high-tech device. Gavin states: “This trigger works well, and mine was adjustable down to just over 2-lb peak force for pull weight. I ran a 3-scan pass on the B14-R trigger with the pull weight set to minimum [barely over 2 pounds].”
Gavin notes: “You can see how consistent this trigger is by how well the scan graph plots overlap! This trigger is great for an out-of-the-box rifle like this, and it’s great to know that I can always swap out triggers and use the same exact Remington 700-compatible trigger that I’m running in my match guns.”
Gavin Gear’s Closing Thoughts — More to Come
The Bergara B14-R rimfire trainer has been a great rifle to shoot and has exceeded my expectations. The B14-R feels like a full-size PRS rifle, has the same basic features, but is chambered in .22 LR. I have been amazed by the accuracy I’ve achieved with this rifle with Lapua and SK match ammunition — it’s very confidence inspiring.
This rifle feels right and shoots great. I can’t wait to get more steel targets setup, and to go deeper into calculating dope for the ammunition I will shoot with this rifle. Perhaps I’ll think about competing in an NRL22 match at some point. If you are looking for a rimfire trainer, look at the Bergara B14-R for sure. It checks all of my boxes for this type of rifle!
COVID-19 stay-at-home orders have created abundant free time at home for millions of Americans. To fill otherwise empty hours, we know many readers have been reloading ammo — LOTS of ammo. And quite a few of you folks are thinking of getting a progressive press to increase output. Because multiple operations take place with a single pull of a lever, a progressive press can produce way more ammo in a given period of time than any single stage press. With a progressive, on the ram up-stroke, the multiple stations can simultaneously remove spent primer, full-length size case, drop powder, seat bullet, and crimp (if desired). Most progressives are also set up to prime cases with the ram in the lower position — though some guys prefer to prime manually.
Progressive presses aren’t just for high-output pistol ammo or bulk rifle ammunition. Good progressives can be adapted to do certain reloading tasks for top-on-the line match ammo. You might use a progressive for decapping, priming, and sizing, then throw powder and/or seat bullets separately. Some Champion shooters do use progressives to load their match ammo! For example 5-Time National Long Range Champion John Whidden and 2020 Berger SWN F-Open Champion Jay Christopherson both use progessive presses for some (but not all) operations.
To help you get started with progressive presses, here are five videos from UltimateReloader.com that cover six popular machines, from the elite Mark 7 Evolution to the inexpensive Lee Pro 1000. With many of these machines you can add separate vertical bullet feeder systems that further increase loading efficiency.
Mark 7 Evolution Press — Distributed by Lyman
Dillon XL-650 vs. Dillon XL-750
RCBS Pro Chucker 7 with Bullet Feeder
Dillon 550C with 6mm Creedmoor and 9x19mm
Lee Pro 1000 Features and Operation
Better Safe Than Sorry — the RCBS Lock-Out Die
RCBS Makes a “Lock-Out Die” that senses the powder charge. This will halt the Progressive press if you have a double charge, or an undercharge. Your Editor has the Lock-Out Die on his RCBS Pro 2000. It has “saved his bacon” a half-dozen times over the years. It can be used on Dillon and Hornady progressives as well as RCBS machines.
Gavin Gear tests .308 Win ammo with his DPMS LR-308B, AR10-type rifle.
Our friend Gavin Gear of UltimateReloader.com owns a DPMS LR-308B, an AR10-type semi-auto rifle. Gavin finds that his DPMS has a healthy appetite for ammunition. So, he set up his Hornady Lock-N-Load progressive press to produce .308 Win ammo. This video shows the process of press set-up and operation, complete with Hornady’s automated Case Feeder and Bullet Feeder. Employing elevated rotary hoppers, the case feed and bullet feed systems really speed up production. The automated feeders allow the operator to produce cartridges without ever touching case or bullet with his hands.
If you need large quantities of .308 Win ammo for 3-Gun matches or tactical games, and if you value your time, a progressive press may be a wise investment. The progressive can load a complete round with every cycle of the press handle. With Case Feeder and Bullet Feeder in place, the Hornady L-N-L can easily crank out a new .308 round every 3-4 seconds (watch video at 5:25). Conservatively speaking, that’s 15 rounds per minute sustained production (and some guys can go even faster).
To learn more about the Hornady Lock-N-Load Progressive Press (with case/bullet feed options), and to see a list of the dies and accessories Gavin uses, click the link below:
Here are the main tools you’ll need to assemble an AR-platform rifle
In these challenging times, many Americans are buying an AR-type rifle, or starting an AR project — assembling the rifle from available uppers, lowers, and parts kits.
If you are planning to put together an AR-platform rifle or upgrade your AR with a new barrel, stock, or trigger group, here’s a tip. Check out the AR-15 Rifle Build DVD from our friends at UltimateReloader.com. This DVD covers all the details of a custom build, using high-resolution video sequences, and helpful supporting graphics.
In this DVD, Gavin Gear guides you through the entire process including selecting components, acquiring and using the necessary tools, assembly steps and details for each component, and even mounting a scope. Building an AR-15 can be overwhelming, but with the right guidance and help it’s not difficult and can be very rewarding. With this DVD you’ll be able to build your AR-15 with confidence.
Upper: Barrel / Gas Block / Gas Tube
Upper: Handguard Installation
UltimateReloader.com’s AR-15 Build DVD is available just $9.90 (plus $3.80 shipping/handling). This DVD can pay for itself many times over by showing you how to do your own gunsmithing (and get quality AR components at attractive prices).
Tired of spending $15-$25 for a can of spray lube that doesn’t last that long? For about the same price as a single 10 oz. can you can make your own effective spray lube that should last for multiple seasons and lube thousands of cases quickly and easily.
In the YouTube video embedded below, our friend Gavin Gear of UltimateReloader.com shows how to make your own case lube using simple, inexpensive ingredients. As recommended by the 6.5 Guys, this Liquid Lanolin + Isopropyl Alchohol mix works well and is very cost-effective. You can make a pint of this home-brew Lanolin case lube that will lube thousands of cases — many more than a typical commercial aerosol spray can (that’s mostly compressed air).
Gavin describes the exact mixing process on his Ultimate Reloader website. Gavin says this lube mix is a good complement to the Hornady One-Shot (pistol) and Dillon DCL (rifle) lubes he has used for pistol and rifle reloading sessions. CLICK HERE to read more.
Blue, Red, Green — There are many Progressive Press options on the market…
When you need ammo fast — lots of ammo, it’s hard to beat a progressive reloading press for output. We use progressive presses to load handgun ammo and .223 Rem cartridges for varmint safaris. With good dies, and proper press set-up, today’s progressive presses can produce surprisingly uniform and accurate ammo. No, you won’t see Benchrest Hall-of-Famers loading PPC cartridges on progressives. However, if you need 1000 rounds for your next prairie dog adventure, you should consider getting a progressive. Below you can see a Hornady Lock-N-Load AP configured to load .308 Winchester in bulk.
UltimateReloader.com has published helpful Tips to Optimize Progressive Rifle Loading. No matter whether you have a Red (Hornady), Green (RCBS), or Blue (Dillon) progressive, this article can help you load more efficiently and produce better results. Here are some highlights:
Proper Brass Prep
Just like a good paint job requires good prep work, great rifle ammo requires good brass prep. In order to make sure your rifle loading goes smoothly, make sure to perform the following brass prep steps:
Clean the brass (tumble, ultrasonic, etc.)
Inspect brass for cracks, deep dents, etc.
For military brass: de-prime, ream/swage primer pockets, size with small-base sizer die (small base usually optional).
Measure brass length — if too long, size and then trim.
Final inspection before loading.
Cleaning primer pockets may be something you’ll consider (I don’t clean primer pockets except for rare cases or match ammo).
Smooth and Steady Pace
Since you’re loading rifle ammunition on a progressive, you’re already saving a load of time, so there’s no need to rush things! Attention to detail is super-important for safety and for good results. Always keep an eye on powder level (goes down FAST) and what’s happening at each station.
The Right Press and Press Setup
Look for a heavy-duty, well-built press that will stand up to rifle loading. You’ll also want to make sure your powder measure will have the proper capacity (~25 grains for .223, ~50 grains for 308). If you are bulk reloading, ensure you have enough stations for sizing, charging, powder check, bullet feed, bullet seating, and (optional) bullet crimp. Compare the powder measuring systems, and give careful consideration to the priming process. You want case priming to be 100% reliable. This video reviews the differences between the Dillon XL-650 and the new XL-750 Progressive presses.
More Ultimate Reloader Resources for Users of Progressive Presses:
Holiday Greetings to Our Readers
Merry Christmas and Happy Holidays to all our readers and especially our 48,000+ Forum Members. This marks our 15th Christmas “in business”, and the site is stronger than ever thanks to our contributing Forum members and industry sponsors. AccurateShooter.com is now accessed by over 500,000 visitors every month, who enjoy our Feature Articles, Daily Bulletin, Shooters’ Forum, and our Facebook Page. Part of the reason for that success is the hard work of our dedicated staff and volunteer helpers.
Unsung Heroes Deserve Recognition
I want to acknowledge those guys who have really helped out the site. Number one is our Systems Admin, Jay Christopherson. Along with being a darn fine shooter, Jay is a computer guru who keeps the servers running smoothly and maintains our Forum. Jay has set up distributed computing and secure firewalls, making the site both speedier and more stable. We must acknowledge Boyd Allen and EdLongRange who tirelessly supply story leads for the Daily Bulletin. And our Deals Editor, F-Class John, finds great weekly bargains for the Bulletin and tests new products. Thanks also to Jeff Williams, who handles site donations by mail. We have a great place to test rifles thanks to our valued friend Joe Friedrich. Other important contributors include: Gavin Gear of UltimateReloader.com; Bill Marr of Rifleshooter.com; Ed Mobley and Steve Lawrence of 65Guys.com; and Craig Arnzen of Area 419. These folks have produced important product tests and contributed stories and videos. I also want to recognize Hunting Editor Colton Reid and regular contributors James Mock, Vince Bottomley, Jason Baney, and Erik Cortina. All these men (and many others) have contributed much time and effort.
We also want to thank our major sponsors, without whose support the site could not provide the full AccurateShooter.com experience, with an active Forum, an archive of in-depth articles, and fresh content 365 days a year in our Daily Bulletin. We’re grateful to all our sponsors and advertisers. In particular, we want to acknowledge the major companies which have been strong supporters of this site for many years: Capstone Precision Group (Berger, Lapua, SK, Vihtavuori), Bruno Shooters Supply, Bullet Central, Graf & Sons, Grizzly Industrial, EuroOptic, Krieger Barrels, Midsouth Shooters Supply, Powder Valley Inc., Precision Reloading, and Zeiss Sports Optics. Their continuing support helps us keep up the flow of information and serve our readers and Forum members.
Gavin Gear of UltimateReloader.com recently tested Hawkeye Borescopes from Gradient Lens Corp., along with the impressive Hawkeye Video Slide System. Gavin observed: “When it comes to gunsmithing, gun inspection, and gun maintenance, a borescope can tell you things that nothing else can. And that’s why a borescope is an invaluable tool for gunsmiths, competition shooters, and gun enthusiasts.”
UltimateReloader.com MUST WATCH Video — See What Hawkeye Borescope Reveals:
A good borescope reveals the reality inside your barrel(s). There’s no more guesswork. All the issues associated with barrel will be revealed — carbon build-up, copper fouling, fire-cracking and more. Within a few seconds you can judge the state of your bore, and diagnose problems such as copper fouling and fire-cracking. Check out these two images. On the left is a brand new hand-lapped barrel. On the right is a barrel with heavy fire-cracking.
Gavin tested both 7″ and 17″ versions of the Hawkeye Borescope. He tested straight versions, and both long and short borescopes with a 90° eyepiece. For most tasks we prefer the 90° eyepiece. In addition to these systems, Gavin tested the the Hawkeye Video Slide and video image acquisition system, shown below.
The features are: 1. Video Slide support system; 2. Pistol barrel being inspected; 3. Borescope with quick-coupler equipped Sony camera; 4. Windows 10 PC Laptop running Hawkeye App with VIDEO Feed; 5. LED illumination for borescope.
“The Hawkeye Video Slide and video image acquisition system are not intended for consumers. They are primarily used by laboratories, gun OEMs, and other commercial customers,” Gavin notes. He used the Video Slide to provide the “next best thing” to viewing through the Hawkeye itself.
What You Can See with a Hawkeye Borescope
This Gradient Lens video shows how to correctly borescope your barrel:
A precision optical borescope is a pricey tool, but it performs critical tasks for gun-owners, and a Hawkeye’s rigid optic tube offers some important advantages over a cheap endoscope on a flexible cord. To learn how a Hawkeye 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 shows 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. 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.”
Many of the best videos on reloading products and methods have been produced by Gavin Gear of UltimateReloader.com. Over the last 12 years, Gavin has released 465 videos showcasing reloading products, gunsmithing techniques, and gun testing. Thanks to Gavin’s movie-making skills and hard work, his GavinToobe YouTube Channel recently achieved the 100,000 subscriber milestone. Over the years Gavin’s videos have received over 17.7 million views. Gavin’s videos have benefited shooting enthusiasts and hand-loaders around the globe, and we congratulate Gavin and UltimateReloader.com!
Gavin posted: “Twelve years ago I started my YouTube channel. Shortly thereafter I started publishing ammunition, reloading and shooting sports content. In 2017 I quit Microsoft to work on Ultimate Reloader full time, and on 11/26/2019 I surpassed the 100,000 subscriber mark. WOW, it’s been sooooo much work, but sooooo much fun. Special thanks to my family for putting up with all of the times I’ve worked on this project ‘after hours’. I feel totally blessed. Very much appreciate my community, and also Jonathan Patton for helping me to understand online communities better. I also really appreciate Hornady for their help in getting me started (my first partner). Neil Davies — that’s you. Thanks everyone!”
To mark this major milestone, we’re featuring five of Gavin’s popular videos. The first is his 2019 Black Friday video covering bargains from Midsouth, Starline, KMS Squared, and Inline Fabrication.
Black Friday 2019 Special Bargains
Epic Reloading Hardware Test — 14 Single-Stage Presses
In this remarkable video, Gavin review fourteen (14) single-stage reloading presses. This is the most comprehensive reloading press comparison test ever done by anyone:
Most Popular Video — .223 Rem vs. 5.56×45
This is Gavin’s #1 Video of all time. His .223 Rem vs. 5.56×45 video has been viewed over 1.9 million times. It provides key facts about the similarities (and a few differences) between the .223 Remington cartridge and the 5.56x45mm NATO round.
1000 Yards with .224 Valkyrie
With 50,000+ views, this is one of Gavin’s most popular field shooting videos. Shooting on his scenic “home range” in the Washington mountains, Gavin developed a tack-driving load using Berger 80.5 gr bullets. See 100-yard results and Gavin’s remarkable first-round hit on steel at 1000 yards!
Buck Fever — Right in the Back Yard!
In this video, Gavin uses his new 300 PRC rifle to bag an impressive buck just 100 yards from his shop. For those of you who have hiked miles on a hunt, only to return home empty-handed, this will seem amazing. And yes, Gavin’s 300 PRC cartridge dropped the animal like a stone.
RCBS has come out with a new, twin-tube powder scale/dispenser that promises to deliver 1- or 2-kernel precision in the slower, more precise “Match Mode”. If it really works, this new RCBS MatchMaster unit could compete with an Auto-Trickler V3 mated to a Magnetic Force Restoration scale. However, the new MatchMaster employs a strain-gauge scale, so it will be interesting to see how the unit actually performs.
This is an impressive new machine, but it represents a signficant investment. MSRP for the MatchMaster is $1123.95 with street price around $899.00 (MidwayUSA). At around $900.00, the MatchMaster competes with an AutoTrickler system, which is definitely fast and highly precise.
Ultimate Reloader Tests the New RCBS MatchMaster
Our friend Gavin Gear of UltimateReloader.com got his hands on one of the first production MatchMasters. Gavin put the machine through its paces in a “first look” video using two powders, Bullseye and Varget. In the video, Gavin explains the machine’s design features. Then he tests the new MatchMaster in both Standard Mode (faster) and the slower, more precise “Match Mode”. Gavin also published a full-length MatchMaster Review with detailed test results.
RCBS claims that the MatchMaster can dispense charges to within ± 0.04 (four hundreths) grain in Match Mode. That’s 1-2 kernels of an extruded powder such as H4350. Gavin’s testing, using an A&D FX-120i Magnetic Force Restoration scale as a control, showed that RCBS’s claims are solid.
“You can actually fine-tune the settings for the large dispensing tube and the small tube. There are quite a few parameters… quite a bit of flexibility.” — Gavin Gear.
RCBS MatchMaster Features
— MatchMaster offers two modes, Standard (Faster) and Match (More Precise)
— MatchMaster has two powder dispensing tubes, a larger diameter for large flow and a second smaller tube for precise trickle.
— MatchMaster Settings can be controlled with RCBS Mobile App that works through BlueTooth.
— Powder is removed from the BOTTOM of the machine. This means you must lift the unit up off the bench, then plug a drain tube into the bottom of the unit. See photo.
How Accurate Is the MatchMaster?
Near the end of his video review, Gavin threw an 84.20 grain charge of Varget with the MatchMaster. He then weighed the same charge with his A&D FX-120i Magnetic Force Restoration scale. The charge weights agreed exactly at 84.20 grains. When the same pan was placed a second time, the FX-120i showed 84.16 grains. That’s still a mere 0.04 grain variance, which is RCBS’s stated precision claim for Match Mode.
Note: This shows first placement of pan on the A&D FX-120i. A second placement of pan on FX-120i stabilized at 84.16 grains.
How Fast is MatchMaster in Each Dispensing Mode?
Gavin started testing the MatchMaster in Match Mode with Bullseye, a popular flake pistol powder. With a 24.00 grain Bullseye charge, one dispensing took 26 seconds (11:40 time-mark), while another took 40 seconds (12:30 time-mark), an average of 33 seconds. In standard mode, the MatchMaster dispensed 24.0 grains of Bullseye in 18.5 seconds average (15.03 time-mark, 15:32 time mark). So Standard Mode was 44% faster with Bullseye.
Next Gavin filled the machine with Hodgdon Varget powder and dispensed a 25.0 grain charge in Standard (Fast) Mode. The first try took 12 seconds (18:30 time mark) to dispense the charge, while the second run of 25.0 grains took just 11 seconds (18:50 time mark).
“Hodgdon Varget performed VERY well with the MatchMaster powder dispenser. I would call this powder the ‘Speed King’ here — it dispensed way faster than the Alliant Bullseye with the settings I used, and I only had one overage which was corrected when I changed powder settings. Bravo!” — Gavin Gear
Then Gavin switched to Match (Precise) Mode and dispensed two more 50.00 grain charges of Varget. These two precision throws finished in 20 seconds (20:38 time mark) and 17 seconds (21:09 time mark) respectively, for an 18.5 second average. That’s very good for large 50.00 grain charges, although the first charge was actually 50.06 grains, about two kernels high. But Gavin explained that the machine permits fine-tuning of the powder type setting. He changed this to account for larger extruded kernels and got a perfect 50.00 grain throw in 35 seconds (22:01 time mark). The “customized” powder settings can be loaded into the RCBS MatchMaster App for future use (See below):
Conclusion — Initial Tests Show Good Performance
Based on Gavin’s testing, the MatchMaster delivers on its promises. With Varget extruded powder, it was quite fast, even in “Match Mode”. The dispensed charges were exact within .04 (four hundredths) of a grain, i.e. a couple of kernels, as confirmed by the A&D FX-120i Force Restoration Scale. Gavin actually liked the system of removing the powder through the bottom of the machine, using the supplied tube. It takes some practice, but it worked fine, as you can see in the video.
The RCBS MatchMaster employs a strain-gauge scale. It remains to be seen if there is a bit of drift, as you will observe with strain-gauge dispensers in the $200-$300 range, such as the original RCBS ChargeMaster. During his MatchMaster test session, Gavin said he did not observe any drift, a good sign. Overall, it looks like this is an impressive machine. But, with a $899.00 price, this is a serious investment. Anyone considering the new MatchMaster will also want to look at the AutoTrickler V3 system with AutoThrow. It costs $520.00, NOT including a lab-grade Magnetic Force Restoration balance ($600 to $1000+).
Holiday Greetings to Our Readers
Gavin tested both 7″ and 17″ versions of the Hawkeye Borescope. He tested straight versions, and both long and short borescopes with a 90° eyepiece. For most tasks we prefer the 90° eyepiece. In addition to these systems, Gavin tested the the Hawkeye Video Slide and video image acquisition system, shown below.
A precision optical borescope is a pricey tool, but it performs critical tasks for gun-owners, and a Hawkeye’s rigid optic tube offers some important advantages over a cheap endoscope on a flexible cord. To learn how a Hawkeye borescope can help you diagnose barrel issues, you should read a 
