We talked with the experts at Bartlein Barrels. They confirmed that they have seen many, many more barrels harmed by crown damage caused by improper cleaning than by anything else. If you use a bronze brush, Bartlein recommends that you REMOVE the BRUSH after it passes through the muzzle. This is because the bristles take a set (pointing to the breech) during the out-stroke. In other words the bristles angle back as you push towards the muzzle from the breech. If you drag the brush backwards at the muzzle, you force these bristles to reverse direction abruptly right as they cross the delicate crown. In time, that can damage the crown. NOTE: John Krieger of Krieger Barrels also advises his customers not to pull a bronze brush backwards across the crown.
Response to Skeptics
Whenever we’ve published similar advice, given by guys who are producing some of the most accurate barrels in the world, some readers get extremely angry. They say, “You’re crazy! I’ve was pullin’ triggers when you were still in diapers. I’ve got Hall of Fame points and I say there’s no way a phosphor bronze brush can ever do anything to steel. You’re full of it.” Well, these guys are entitled to their opinion. But here’s our response. Number one, we’re just telling you what the barrel-makers are telling US. Don’t kill the messenger. Number two, many of the guys who say bronze brushes can’t affect the crown are the same guys who feel they need to recrown their barrels every 400-500 rounds (Do we see a connection?). Third, if you don’t think a softer material can affect steel, look at the steel ferrules of a well-used fishing rod — there the steel is worn away by plastic. (With time, water will wear away granite.) Lastly, this Editor can tell you I’ve seen the damage myself, first-hand, using a magnifying glass on much-brushed benchrest barrels. Right at the muzzle, the top edge of the lands had sharp, jagged edges that looked like little shark’s teeth, or the edge of a serrated knife. By contrast, a new barrel will have a nice, smooth straight edge along the top of the lands at the muzzle.
Also Be Careful with Jags
Bartlein’s experts also told us to be careful about the jags you use. Dewey-style jags in particular can cause problems. These have a long shaft with multiple rings with diamond-pattern “teeth”. The teeth are designed to grip a patch. The problem is that the lower rings may be exposed below the patch fabric, so the teeth can grind directly on the rifling and/or crown. Bartlein says Dewey-style metal jags can damage a crown very quickly if any of the toothed rings are exposed, metal-on-metal. Tim North of Broughton barrels also advises against using the Dewey-style jags with toothed rings. Interestingly, Dewey uses the same type of diamond-shaped teeth on the bottom of its “Crocogator” primer pocket tool, so you know those knurled teeth can scrape.
Readers often ask “What’s the difference between a Weaver scope rail and a Picatinny Rail?” The answer is not as simple as it seems. The dimensions of a Picatinny Rail should be consistent (from one rail-maker to another), since there IS a government spec. Conversely, there is some variance in “Weaver-style” rails. The width of the groove is the most important difference between Picatinny Rails and Weaver-type rails. “Mil-spec” Picatinny rails will have a grove width of 0.206″ while Weaver rails typically have a narrower, 0.180″ groove width.
Does your rifle have a Weaver Rail or Picatinny Rail? Check the dimensions to be sure.
A while back, Brownells had a helpful GunTech™ Article that discussed the Picatinny Rail vs. Weaver Rail. That article explained:
What are the differences between the ‘Picatinny’ and the ‘Weaver’ systems? The profile of the two systems is virtually identical. Depending on the quality of the machining done by the manufacturer, the two systems should be indistinguishable from the profile. The key difference lies in the placement of the recoil grooves and with width of the grooves. MIL-STD-1913 (Picatinny) grooves are .206″ wide and have a center-to-center width of .394”. The placement of these grooves has to be consistent in order for it to be a true Picatinny MIL-STD system. Weaver systems have a .180” width of recoil groove and are not necessarily consistent in a center-to-center measurement from one groove to the next.
In many instances, a Weaver system has a specific application that it is machined for, so interchangeability is not necessarily an issue. A MIL-STD-1913 system must adhere to the specifications listed above in order for it to be considered MIL-STD, since the military desires uniformity in the recoil grooves to allow for different systems to be mounted on the weapon with no concern for compatibility.
Now, what does this mean? Boiled down, it means that accessories designed for a Weaver system will, in most cases, fit on a Picatinny system. The reverse, however, is probably not the case. Due to the larger recoil groove, Picatinny accessories will not fit a Weaver system. There are, of course, exceptions to every rule, but for a good rule-of-thumb, [full-width] Picatinny won’t fit Weaver, but Weaver accessories WILL fit Picatinny.
This video shows the process of cut-rifled barrel-making by Krieger Barrels, one of the world’s best barrel manufacturers. Krieger cut-rifled barrels have set numerous world records and are favored by many top shooters. The video show the huge, complex machines used — bore-drilling equipment and hydraulic riflers. You can also see how barrels are contoured, polished, and inspected.
For anyone interested in accurate rifles, this is absolutely a “must-watch” video. Watch blanks being cryogenically treated, then drilled and lathe-turned. Next comes the big stuff — the massive rifling machines that single-point-cut the rifling in a precise, time-consuming process. Following that you can see barrels being contoured, polished, and inspected (with air gauge and bore-scope). There is even a sequence showing chambers being cut.
Click Arrow to Watch Krieger Barrels Video:
Here is a time-line of the important barrel-making processes shown in the video. You may want to use the “Pause” button, or repeat some segments to get a better look at particular operations. The numbers on the left represent playback minutes and seconds.
Krieger Barrel-Making Processes Shown in Video:
00:24 – Cryogenic treatment of steel blanks
00:38 – Pre-contour Barrels on CNC lathe
01:14 – Drilling Barrels
01:28 – Finish Turning on CNC lathe
01:40 – Reaming
01:50 – Cut Rifling
02:12 – Hand Lapping
02:25 – Cut Rifling
“At the start of World War Two, Pratt & Whitney developed a new, ‘B’ series of hydraulically-powered rifling machines, which were in fact two machines on the same bed. They weighed in at three tons and required the concrete floors now generally seen in workshops by this time. Very few of these hydraulic machines subsequently became available on the surplus market and now it is these machines which are sought after and used by barrel makers like John Krieger and ‘Boots’ Obermeyer. In fact, there are probably less of the ‘B’ series hydraulic riflers around today than of the older ‘Sine Bar’ universal riflers.” — Geoffrey Kolbe, Border Barrels.
Photos and Facebook post by Tactical Rifle Shooters
Yet another .300 Blackout disaster. Unfortunately, that .300 Blackout cartridge can fit in a .223 Rem chamber. Shooting a .308-caliber bullet in .223 bore is a recipe for disaster.
The .300 AAC Blackout aka “300 BLK”, is a compact 30-caliber cartridge designed to work in AR-15 rifles. It has a shorter cartridge case to accommodate the bigger 30-caliber bullet while still fitting in a standard AR-15 magazine. Unfortunately, that’s the danger. A careless shooter can toss a .300 Blackout cartridge in with .223 Rem rounds without noting. And because the case-head size is the same as the .223 Rem (5.56×45) the rifle’s bolt assembly will happily chamber and fire the .300 BLK round. Problem is, that forces a .308 diameter bullet down an undersized .223-caliber bore. Not good!
This images were provided by Tactical Rifle Shooters on Facebook. The message was clear: “Don’t try to run 300 Blackout in your .223/5.56mm. It won’t end well. The problem is identical rifles and identical magazines but different calibers.”
Image from Accurate Shooter Forum. Cutaway shows the jammed .30-Cal bullet:
For those who MUST have a .300 Blackout, here are some things you can do:
1. Use different colored magazines for .300 Blackout vs. .223 Rem.
2. Fit all your uppers with caliber-labeled ejection port covers.
3. Mark .223 Rem upper handguards with the caliber in bright paint.
4. Mark all .300 BLK Rounds with heavy black marker.
Comments by Folks Who Viewed these .300 Blackout Disaster Photos:
“The .300 Blackout is simply a badly-designed round. A properly-designed round would have had a feature in the shape that would have prevented cross loading in the first place.” — D. Santiago
“I almost made that mistake… I had a magazine of 300 BLK inserted in my .223/5.56 all night. Fortunately, I never pulled the trigger. Once I realized the mistake, I almost got ill. [After that incident] I no longer own a 300 BLK.” — B. Welch
“Happened to me hog hunting from a helo. Gun exploded in my face.” — B. Hood
“Fire-forming projectiles [is] so wrong in centerfire!” — M. Stres
“Had some dude come into the store the other day wanting .300 Blackout ammo to shoot in his 5.56 AR. It took 15 minutes of explaining for him to understand you got to have a .300 Blackout Upper!” — R. Williams
The summer solstice — the official start of summer — is June 20, 2025. Here we feature some notable guns of summer from our popular, long-running “Pride and Joy” thread in our Shooters’ Forum. Since 2009, Forum members have posted photos and descriptions of their most prized firearms. Here are some of our favorite “Pride and Joy” rifles recently showcased in our Forum. Do you have a gun you’d like to see featured there? Register for the Forum and you can add your favorite gun to the list. The photo above shows multiple wood-stocked Palma rifles belonging to Forum member SParker.
We hope these “pride and joy” rifles may provide inspiration for our readers, whetting their appetite for their next competition, varminting, or hunting rifle project.
Team Vihtavuori F-Open Rifle
Here is a state-of-the-art F-Open competition rifle belonging to Team Vihtavuori member Tim Vaught. This features a BAT M action, Alex Wheeler-Avila WFO stock, Bartlein barrels, Bix’N Andy trigger, and March Majesta scope. This ultra-accurate rifle also has a barrel tuner and an adjustable R.A.D. 2A recoil-reducing system. This tames recoil and allows the buttpad to adjust horizontally (fore/aft), adjust vertically, and rotate. Tim lists three chamberings for his F-Open blue beast: 7-6.5 PRC; 7-300 WSM; and 300 WSM.
22 BR Savage Varminter — Accuracy on a Budget
This 22 BR Savage, with upgrades from Sharpshooter Supply, is the “pride and joy” of Forum member Maynard. Note the heavy-contour custom barrel with brake. That 22 BR cartridge is a very effective choice for varmint work, as the ground hog in the photo proves. The 22 BR and 22 Dasher are capable of outstanding accuracy with a large variety of bullets and powders. A 22 Dasher can rival the ballistics of a 6mmBR out to 500+ yards, but with reduced recoil.
Stockmaker’s New 30BR Pride and Joy
This handsome 30BR competition rifle was crafted by its owner, Forum member WillyTP who runs Todd Payseur Stocks in South Carolina. He posted: “Finally found the time to make myself a new stock and get it finished this time. All work from the rooter to the tooter by yours truly.” This score benchrest rifle features top-end components: BAT SV action, BRUX Barrel, Bix’N Andy trigger, and Nightforce 42x44mm scope.
Daughter’s First Rifle — Built by Dad
Above is a nice field rifle built up by a father for his daughter. Forum member FrankZ explains: “This is my favorite rifle and it will become my daughter’s first centerfire. The action is from the first rifle I purchased with my own money 21 years ago (700VSS).” The rifle now sports a 24″ Brux barrel chambered in 6mm Creedmoor, with aftermarket PT&G Bolt and DBM metal.
6BR Ackley Improved from Alex Wheeler
Here is a 6BR Ackley Improved (6BRA) built by Alex Wheeler. This blue marble-painted beauty features a BAT “B” action timed by Alex, fitted with Jewell trigger, and Borden trigger guard. The barrel is a Hawk Hill HV contour finished at 28 inches. The stock is a Deep Creek Tracker with 4″ forearm and rudder system (the toe of the stock adjusts for angle, allowing better tracking). This scope is a Vortex 15-60x52mm Golden Eagle riding in Burris Signature Zee rings.
F-Open Rifle with Borden Action + McMillan Kestros ZR Stock
This state-of-the-art .284 Shehane F-Open rifle belongs to Forum member Willow. This has a McMillan Kestros ZR stock fitted with a RAD (spring-loaded buttpad) system with custom spring. Other components are: Borden BRMXD LBRP DLC-coated action, Bartlein 32″, 4 groove, 1:8.5″-twist 400MOD steel barrel, and TriggerTech Diamond trigger. On top is a March HM 10-60x56mm scope in March Gen 3 rings. Below is a video by Editor F-Class John, showing the features of the Kestros ZR stock.
6BRX in the Country
Forum member Grimstod posted this nice 6BRX in a scenic setting: “Bill Goad at Premier Accuracy crated this fantastic 6BRX. It shoots better then I do.” The rifle features a single-feed Alpin action, with Hart 26″ 1:8″-twist barrel, chambered for the 6BRX (6mmBR wildcat) with .269 neck. Grimstod currently runs 95gr Berger VLDs in Lapua brass. On top is a Leupold 40x45mm scope on a Picatinny rail that Grimstod machined himself. The stock is an HS Precision painted by Premier Accuracy.
6mm Dasher for Benchrest Silhouette Matches
Here’s a gorgeous green 6mm Dasher. Forum Member Gunnermhr states: “This is my new 12-lb Dasher for the 1000 Yard Benchrest silhouette matches. My good friend at CRS Custom Rifle Stocks in Aaronsburg, PA made and painted the stock. It’s similar to a Tooley MBR with a few modifications. It still supported on a 3″ forearm and is full length. Hard to imagine it still makes weight with a wood stock and a 36 power Leopold. Crossed the scale at 11.7lbs. The rifle features a BAT “B” Action. The paint is Candy Apple Green, the forearm has a white base-coat, center section is gray base coat and the buttstock is black base coat, all covered with five coats of clear. It’s the new pride of the fleet as it shoots as good as it looks. This gun hammers with 105gr Berger Hybrids.”
Two Dashers and a Rimfire for Fun
Courtesy Forum member Dan H., here are two red-stocked Dashers plus an Anschutz 54.30 (Benchrest Stock) to make it a trio. Dan says: “The Anschutz provides good practice in trigger-pulling. It’s amazing what you can learn from a rifle that is as sensitive as this one.”
1917 Enfield Upgraded with Hand-Carved Figured Maple Stock
This impressive rifle features an “antique” 1917 Enfield action chambered for the .338 Win Magnum cartridge. The lovely Maple stock was hand-carved by Forum member Spitfire_ER. He tells us: “I found this piece of wood as a return at a lumber yard about 7-8 years ago. I asked the guy in the yard about it and he said it had been returned because it had too much figure for the job the customer was working on. First thing I thought was, ‘That would make a nice stock’.”
Jewell triggers are still the most-used triggers on competition benchrest and F-Class rifles and they are also popular for hunting, varmint, and tactical rifles (with or without safeties). While a Jewell trigger can work for years with minimal maintenance, if the trigger becomes gunked up, it may be necessary to disassemble the trigger for a thorough cleaning. Our friends Ed and Steve, aka the 6.5 Guys, have produced a helpful video that shows how to disassemble and then reassemble a Jewell trigger.
Why You May Need to Disassemble Your Jewell Trigger — the 6.5 Guys
Jewell triggers are a popular choice in the sport of long range precision shooting, and like everything else require regular cleaning and maintenance. In most cases they can be cleaned with charcoal lighter fluid or dropped into an ultrasonic cleaner. Should the situation require, they can be completely disassembled according to the Jewell Trigger Manual.
We ran into a situation where we had to dissemble a trigger due to the entrapment of some sticky dirt that couldn’t be removed with an ultrasonic cleaner. Our first step was to find some step-by-step instructions but we couldn’t find anything.
Recognizing that other shooters might be in the same situation we produced a step-by-step guide and video, published in full on 65Guys.com. These instructions will work with a left- or right-handed trigger. In our case we worked with a left-handed BR model trigger with safety and bolt release.
Step-by-Step Instructions are provided on 65Guys.com website. We recommend you read all the instructions carefully before you even think about disassembling your trigger. This video explains the process so you can get a sense of what is involved.
Q: What is the most popular gun book in the history of the planet?
A: That distinction goes to the Shooter’s Bible, which has sold over 7 MILLION copies since it was first published over 80 years ago.
Released in October 2024, the 116th Edition of this respected resource is better than ever. This latest Shooter’s Bible boasts 608 pages with over 270 color photos and more than 1000 black-and-white photos. The latest 116th Edition features many new firearms as well as new optics. This paperback book is now just $18.81 on Amazon, 37% off the $29.99 list price.
Published annually for more than eighty years, the Shooter’s Bible is one of the most comprehensive firearms reference guides in print. The publishers claim that “nearly every firearms manufacturer in the world” is included. The 116th Edition also contains new and/or enhanced sections on ammunition, optics, and accessories, along with updated handgun and rifle ballistic tables. There are also extensive charts of currently available hunting and match bullets for hand-loaders.
While many shooters are now using the internet to get reloading data and equipment specifications, the Shooter’s Bible remains a valuable resource with a great legacy. As one recent Shooter’s Bible purchaser explains: “While it’s true that much of the information contained in the Shooter’s Bible can be found on the Internet, there are many of us who would first rather relax in our easy chair and page through the book at our leisure. If you find an item that catches your fancy, you can then follow up by going to their Web site.”
Another buyer observed: “This [2020 edition] is proof that, even with all the attacks on our 2nd Amendment right over the years, the industry has persevered and grown. I hope the day never comes when there will no longer be a reason to publish the Shooter’s Bible.”
The Shooter’s Bible contains a vast collection of firearms product information and descriptions. Hundreds of firearms are listed, complete with specifications and photos. Products from nearly all commercial gun makers on the planet are included.
More Great Gun Books From Shooter’s Bible Publishers
Credit our buddy Joe Friedrich for this simple yet effective accessory for your benchrest rifle. Joe shoots a .22 LR benchrest rig with a barrel tuner. When he added weights to his tuner, he found his rifle no longer balanced well. He wanted to add some weight in the rear without drilling holes in the stock. He also wanted the weight to be removable, and easily placed on another rifle in his stable. He wanted a weight that could be moved from gun to gun as needed.
At a local sporting goods shop Joe found a 1.5-lb ankle weight that comes in a padded, tubular elastic cover. It’s like a 1.5-lb sausage in a soft, stretchy nylon cover. (Imagine a really fat, heavy bungee cord). Joe simply attached a plastic zip tie at the end to make a loop that fits perfectly over his buttstock. CLICK HERE for full-screen photo.
To “tune” the rifle’s balance, Joe just slides the ankle weight fore and aft on the stock. We have tried this moveable ankle weight on a variety of different BR stocks (including a McMillan Edge) and it worked perfectly. This is a great invention, and would work with sporter rifles and ARs just as well.
NOTE: Obviously, this ring will increase the measured weight of your rifle. So, if you are competing in a registered match with weight restrictions, you have to ensure that your rifle still makes class weight limits with the ankle weight ring in place.
Here’s a really great video about firearms crafting produced by Beretta, a legendary Italian gun-maker founded in 1526 — nearly 500 years ago. This movie, entitled “Human Technology”, is one of most impressive videos we’ve ever featured on this site. It’s that good. You’ll see an amazing blend of modern technology along with old-world artisanship — “a mesmerizing meld of the high-tech and the traditional”. (Daniel Xu, Outdoor Hub.)
Video set to auto-play. Click speaker icon to hear sound.
“Human Technology is a singular and symbolic movie, its cast entirely made up of Beretta workmen, thus illustrating the perfect synthesis between craftsmanship and technology,” Beretta writes. This artistic movie by Ancarani Studio illustrates all the aspects of the manufacturing of a high-end Beretta shotgun. This video is a study in contrast. The movements of robotic assembly machines are juxtaposed with the centuries-old craftsmanship of stock carvers. Beautifully filmed and edited, this video should amaze and entertain anyone who loves fine firearms. (Full-screen HD Recommended.)
Beretta — Incredible history. Beretta was founded in 1526, almost five centuries ago. Remarkably, the enterprise is still owned by the Beretta family.
Project by Shiraz Balolia, President of Grizzly Industrial
The lowboy stock you see above started as an experiment. I had an extra Masterclass F-Class stock that had gone through two actions, four beddings, and multiple modifications over the years. I figured that there was nothing to lose if the experiment did not work out.
After deciding on the design, the stock was carefully leveled in every direction and milled to the precise dimensions for attaching the side pieces, which would be glued to the original stock.
Curly Maple and Bubinga wood were laminated to get the exact thickness of the side pieces so that the total width of the fore-end would be just under the total width allowed for F-Open stocks.
Two guide pins made of Bubinga were drilled through each side so that the sides would not move when glued to the milled stock.
Once the sides were glued to the blank, the stock was once again trued on the mill so it was perfectly flat and square with the back (see below).
The stock was then sent to Keith Weill at KW Precision who did an incredible bedding job on the new BAT M action. The stock was then sent out for spraying a clear finish. Normally I spray my own stocks, but I did not have time for this stock, so that part was subbed-out. The finger grooves and “Shiraz” inlay had been done by me a few years prior during the old stock’s heyday.
Modified Stock Has Significantly Lower Center of Gravity
The rifle was then assembled, a March 10-60x56mm High Master scope was installed, and break-in was completed on the new barrel. At the range, the stock performed great. The stock rides one-half-inch lower in the front bag and really feels good.
Bartlein Barrel Is Chambered in .300 WSM
I was pleased to find that the Bartlein barrel I have on this gun cleaned up very well during barrel break-in and this “experiment” may turn into this being one of my best-performing guns. All of my F-Open match guns are .300 WSM (Winchester Short Magnum), and so is this one.
The 
Credit our buddy Joe Friedrich for this simple yet effective accessory for your benchrest rifle. Joe shoots a .22 LR benchrest rig with a barrel tuner. When he added weights to his tuner, he found his rifle no longer balanced well. He wanted to add some weight in the rear without drilling holes in the stock. He also wanted the weight to be removable, and easily placed on another rifle in his stable. He wanted a weight that could be moved from gun to gun as needed.
