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March 12th, 2021

MTM Gun Cleaning Patch Catcher — Works Great, Under $10!

MTM Case-Gard patch gun cleaning patch catcher green plastic box maintenance

Are you tired of making a mess in your gun room and picking up patches off the floor? If you clean at the range, would you like to make life much easier (no hunting for patches on dirty ground)? Then consider the MTM Gun Cleaning Patch Catcher. It is currently just $9.19 on Grafs.com and $9.89 on Amazon.

This handy see-through green container fits on the end of your rifle or shotgun barrel. It works with all patch types and bore sizes and fits virtually all barrel diameters, large and small. Simply slip the MTM Gun Cleaning Patch Catcher over your barrel to contain all the patches pushed out the muzzle. No more mess and stains on your bench/table. When cleaning tasks are done, simply remove the Patch Catcher and dump the contents into the trash. Watch the video to see how the MTM Patch Catcher works. Note how it also retains the solvent spray and/or drips.

One owner explains: “This box straps over the muzzle end of a barrel and keeps the mess completely contained. Excess cleaning solvents collect in the bottom. Patches fall off the jag and are captured as well when the cleaning rod is withdrawn. It also completely contains the splatter burst when a bore brush exits the muzzle of whatever firearm is being cleaned.” (D.J. Bradley)

MTM Case-Gard patch gun cleaning patch catcher green plastic box maintenance

MTM Case-Gard patch gun cleaning patch catcher green plastic box maintenance

MTM Case-Gard patch gun cleaning patch catcher green plastic box maintenance

Here are actual user reviews from verified customers:

“It’s been a long time since I bought something that is just WOW brilliant but this patch catcher is just that. It is so simple, so neat, so clean and so effective. It fits perfectly on all my rifle barrels and catches patches, brush spray and most importantly most of the smells of solvents. I can now clean my rifles in the house without inviting the wrath of my darling wife.” — Emmitt P. (Amazon)

“The MTM Patch Catcher works great! It is easy to adjust to different size barrels, and … all the gunk stays in the trap! Now, no more cleaning up the work bench/floor area after gun cleaning. This trap is a must have! I never knew I needed one of these until I got the MTM one from Graf’s. My buddy had a different brand, and it was hard to use. On his, the trap that holds the dirty patches and ‘juice’ would not stay in place, and some times most of the gunk ended up on the floor.” — Michael T (Grafs.com)

“This little device is more than a patch catcher. It also contains that dirty, smelly spray when a bore bristle exits the barrel. With the [MTM Patch Catcher] top open, it will also catch spray cleaners and lubes when used on small parts.” — TwoBoxer (Amazon)

Permalink - Videos, Bullets, Brass, Ammo, Gear Review, Tech Tip 2 Comments »
July 12th, 2020

You Need to Do More Than Just Clean the Inside of Your Barrel

Bolt Action Cleaning lug recess chamber cleaning

Most competitive shooters are pretty good about bore cleaning (some may even clean their bores too aggressively). However, we’ve found that many shooters neglect the chamber area and the bolt lug recesses. It’s too easy to clean the bore, slip out the guide rod and say “I’m done.” Sinclair Int’l explains why it’s important to clean the action interior: “Shooters use a lot of grease and oil on their bolts to reduce friction and to prevent wear[.] Unfortunately, both of these compounds attract grit, powder and primer residues. Cleaning your receiver is especially critical [with] custom actions where the fit between the action and bolt is held to very tight tolerances. Routine cleaning of the action will prevent unnecessary wear on the bolt body, locking lugs, and the action raceways/guide rails. Frequent action cleaning is also essential to keeping the trigger area free of debris which can cause trigger hang-ups and failures.”

Cleaning the Chamber

Combustion by-products, lubricants, and solvent residues can collect in your chamber. Severe build-up of grease and carbon can interfere with chambering. Also some solvents will promote corrosion. You need to keep your chambers clean.

Bolt Action Cleaning

1) Install a clean cotton mop of the correct size on the end of a chamber rod and insert the mop into the chamber. Rotate the mop several times to remove any brush bristles left behind and any excess solvent that was between the rod guide snout and the end of the chamber. Make sure the chamber is dry. Prior to storing a rifle you can oil the chamber but make sure the oil is removed prior to firing the rifle.
2) Alternatively, install an old bore brush on a chamber rod, overlap a couple of patches on the brush bristles, and wrap them around the brush completely. Then insert the patch-covered brush into the chamber while rotating it to remove the excess solvent and debris. Push it firmly into the neck area of the chamber. A similar method is to pierce a large patch on the end of the brush loop and insert it into the action, again rotating the brush as you push the patch up against the breech.

Cleaning the Lug Recess Area

The action lug recess area is one of the dirtiest places on a bolt-action rifle. To properly clean this area, always use a tool designed for the task, such as the $26.99 Sinclair Action Cleaning Tool (part # ACT1) which is part of the full Sinclair Action Cleaning Tool Kit ($45.99, part #ACT2).

Bolt Action Cleaning

1) Insert a cotton roll or cleaning felt into your lug recess cleaning tool and wet both ends and the face of the cotton roll/felt with solvent.
2) Insert the tool into the action and push it forward until it is positioned fully in the lug recess area and rotate the tool head several times. Then reverse the rotation for another few turns. While rotating the tool move it slightly in and out to cover the entire recess area and to also clean the breech face.
3) Remove the tool from the action and inspect the surface of the felt or cotton roll. If there is quite a bit of residue on both sides of the felt/roll, then repeat with another wet felt/roll.
4) When you feel the recess area is completely clean, insert a dry cotton roll into the tool and rotate the tool head to remove any remaining solvent and debris. If necessary, use a second dry cotton roll.
5) You can follow this step up with another pass of a mop or patches into the chamber to get any debris or solvent that pushed forward out of the lug recess area.

Cleaning Tips from The Sinclair Int’l Reloading Press, used courtesy Sinclair Int’l, All Rights Reserved.

Permalink - Articles, Bullets, Brass, Ammo, Tech Tip 1 Comment »
July 9th, 2020

Triangle Cleaning Patch — Innovation That Works

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.

BoreSmith’s clever 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). In addition, the Pyramid patch is must 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. SEE Triangle Patches HERE.

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 sizes: 17-20 Caliber, 22-27 Caliber, 27-35 Caliber, and 35-58 Caliber.

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

Permalink Gear Review, Reloading, Tech Tip No Comments »
October 14th, 2018

Patented Triangular Cleaning Patch — Better Way to Clean Bores?

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 triangular Pyramid 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.

BoreSmith’s clever 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). In addition, the Pyramid patch is must 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. Order Triangle Patches HERE.

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.

Permalink Gear Review, Tech Tip 2 Comments »
August 21st, 2018

Barrel Break-In — Essential Procedure or Total Waste of Time?

Barrel Breakin Break-in conditioning cleaning Wade Hull Shilen Walther Varminter.com Eric Mayer Video interview barrels
Photo courtesy Sierra Bullets.

The question of barrel break-in is controversial. Some folks advocate an elaborate, lengthy cycle of shooting and brushing, repeated many times — one shot and clean, two shots and clean and so on. This, it is argued, helps barrels foul less and shoot more accurately. Others say minimal break-in, with patching and brushing after 10-15 rounds, is all you need. Still others contend that break-in procedures are a total waste of time and ammo — you should just load and shoot, and clean as you would normally.

We doubt if there will ever be real agreement among shooters concerning barrel break-in procedures. And one must remember that the appropriate break-in procedure might be quite different for a factory barrel vs. a custom hand-lapped barrel. This Editor has found that his very best custom barrels shot great right from the start, with no special break-in, other than wet patches at 5, 10, and 15 rounds. That said, I’ve seen some factory barrels that seemed to benefit from more elaborate break-in rituals.

What’s the best barrel break-in procedure? Well our friend Eric Mayer of Varminter.com decided to ask the experts. A while back Eric interviewed representatives of three leading barrel manufacturers: Krieger, Lothar-Walther, and Shilen. He recorded their responses on video. In order of appearance in the video, the three experts are:

Wade Hull, Shilen Barrels | Mike Hinrichs, Krieger Barrels | Woody Woodall, Lothar Walther

Barrel Breakin Break-in conditioning cleaning Wade Hull Shilen Walther Varminter.com Eric Mayer Video interview barrelsDo I Need to Break-In a New Rifle Barrel?
Eric Mayer of Varminter.com says: “That is a simple question, [but it] does not necessarily have a simple answer. Instead of me repeating my own beliefs, and practices, on breaking-in a new rifle barrel, I decided to answer this one a bit differently. While we were at the 2016 SHOT Show, we tracked down three of the biggest, and most popular, custom barrel makers in the world, and asked them what they recommend to anyone buying their barrels, and why they recommend those procedures. We asked the question, and let the camera run!” Launch the video above to hear the answers — some of which may surprise you.

Long-Term Barrel Care — More Experts Offer Opinions
Apart from the debate about barrel break-in, there is the bigger question of how should you clean and maintain a barrel during its useful life. Some folks like aggressive brushing, other shooters have had success with less invasive methods, using bore foam and wet patches for the most part. Different strokes for different folks, as they say. In reality, there may not be one solution for every barrel. 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).

CLICK HERE for Long Term Barrel Care Article »

Shooting Sports Lohman Barrel

Chip Lohman, former Editor of Shooting Sports USA Magazine, has authored an excellent article on barrel maintenance and cleaning: Let the BARREL Tell You — Match Barrel Care. In this article, Chip shares the knowledge of a dozen experts including respected barrel-makers Frank Green (Bartlein Barrels), John Krieger (Krieger Barrels), Dan Lilja (Lilja Barrels), and Tim North (Broughton Barrels).

“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.” — Chip Lohman

Permalink - Videos, Gunsmithing, Tech Tip 3 Comments »
February 18th, 2018

Handy UV Bore Light — Big Fiber Optic for Pistol Barrels

UV Bore light Birchwood Casey Fiber Optic
Put the short “J” end of the UV Bore Light in the chamber area. Always make sure your firearm is unloaded. Doubles as a chamber flag for most calibers.

Let there be light… Here’s a handy new device for pistol shooters. Birchwood Casey has come up with a large-diameter “J”-shaped fiber optic tube designed to illuminate pistol barrels without the need for batteries. The Birchwood Casey® UV Bore Light allows gun owners to quickly check the bore of their firearm for obstructions, dirt and fouling.

UV Bore light Birchwood Casey Fiber OpticThe UV Bore light is an innovative design that uses ambient light instead of batteries. Simply put the short “J” end of the bore light in the chamber area of your unloaded gun and it will provide enough illumination to check the bore.

The UV Bore Light also doubles as a safe-chamber flag for most guns. To use the UV Bore Light as a chamber flag, place the LONG end of the Bore Light in the CHAMBER end of the barrel — see photo.

The Birchwood Casey UV Bore Light is inexpensive. It’s sold by the pair in a two-pack priced at $5.40 MSRP.

Permalink Gear Review, Handguns No Comments »
January 12th, 2018

New Anti-Corrosion and Bore-Cleaning Products from Otis

Otis Gun Care Bore Stick Metal Defense Bore Cleaning Foam SHOT Show

Otis will introduce a number of new products at SHOT Show 2018. We were impressed by two new products, one that cleans bores, and a second that promises to protect the inside of your barrel from corrosion. As to the latter, we’re always looking for better ways to prevent the formation of rust in barrels during long term storage. You can certainly coat the bore using patches soaked with Eezox, Corrosion-X, or other good anti-corrosion product. But is there something that could work even better?

New Otis Metal Defense Bore Stick
Otis came up with a new idea that may hold promise. The new Otis Metal Defense Bore Stick™ is placed inside your barrel during storage. Perhaps better named the “Bore Cord”, this product has a long orange “tail” that runs down inside the barrel. The cord’s fibers release VCI, a very effective corrosion inhibitor. The top end has an orange rubber handle with a conical plug. That plug goes in the muzzle to block moisture and retain the rust-fighting VCI vapors. Available for rifles, shotguns, and pistols, Otis says this product “protects firearms from rust and corrosion for up to two years. It is inserted in the barrel of the gun, features a plug to cap the muzzle, and creates a protective barrier on the metal surface.” Single packs cost $4.99 and two-packs are $6.99.

Otis Gun Care Bore Stick Metal Defense Bore Cleaning Foam SHOT ShowNew Foaming Bore Cleaner from Otis
Count us as Foam Fans. We have used Wipe-Out Foam Bore Cleaner on our own match rifles for years. Over that time, Wipe-Out has worked very well, greatly reducing the amount of brushing required. Chemist Terry Paul, inventor of Wipe-Out, created a great product that really works. Our procedure with Wipe-Out is to first patch out the barrel with 3-4 wet patches soaked with Carb-Out or other solvent. Then we apply Wipe-Out once to the bore (with an O-ring boreguide sealing off the chamber). We wait 20-30 minutes, then apply Wipe-out foam a second time. After 3-4 hours we patch out the bore, and normally the rifle is good to go. For long-term storage we may run an oil patch down the bore as a final step.

Otis now has its own proprietary Foaming Bore Cleaner. The expanding foam is formulated to clean the bore of any rifle, pistol, or shotgun. Available in a 3 ounce aerosol can, it retails for $9.99. The can ships with a handy tube for application, with a push-button control on top. We look forward to trying the Otis foam cleaner to see how it stacks up to Wipe-Out.

The above video shows how to apply Wipe-Out or other bore-cleaning foam. We use a slightly different method. First, we use 3-4 wet patches to remove loose carbon fouling. Then we apply the foam as shown, but usually from the muzzle end (with bore guide in chamber). Here’s the important point — after 20-30 minutes, once the bubbles have dissipated, we apply the foam a second time, getting more of the active ingredients into the barrel. We then patch out, as shown, after 3-4 hours.

Permalink Gear Review, New Product 1 Comment »
October 18th, 2017

Bore Cleaning The Right Way — Top Barrel-Makers Give Advice

Shooting Sports Lohman Barrel

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.

CLICK HERE to read Full Match Barrel Care Article »

Chip Lohman, former Editor of Shooting Sports USA Magazine, has authored an excellent article on barrel maintenance and cleaning. Chip’s article, Let the BARREL Tell You — Match Barrel Care, is in the Shooting Sports USA digital archives. In this article, Chip shares the knowledge of a dozen experts including respected barrel-makers Frank Green (Bartlein Barrels), John Krieger (Krieger Barrels), Dan Lilja (Lilja Barrels), and Tim North (Broughton Barrels).

John Krieger Interview with AccurateShooter at SHOT Show:

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.

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June 7th, 2017

New Hi-Viz Orange Cleaning Rod Guides from Creedmoor Sports

Creedmoor Sports Cleaning Rod Bore Guide Orange PVC Delrin O-Ring Seal

Here’s a new product we like — Creedmoor’s extra-long, fitted Cleaning Rod Guides (aka Bore Guides) that offer a port for adding solvent. We like the distinctive bright orange color. That helps you quickly identify your rifle on crowded cleaning bench.

Why a Rod Guide Is Needed for Proper Bore Cleaning
A good Cleaning Rod Guide ensures that your brushes and jags are centered in your bore, so you don’t get uneven wear in your throat. Moreover the guides protect the action raceways, blocking liquids and debris from entering the trigger group. The port helps you add solvent without making a mess or spilling on a fine stock finish.

The orange Creedmoor Cleaning Rod Guides have some nice features. They are long enough so that you can avoid removing larger optics and include a port to apply solvent. The O-ring at the front provides an additional seal for the chamber. These Rod Guides are designed for specific action types and chamberings for proper alignment. Creedmoor’s Bore guides cost $24.95. That’s quite a bit less than some other vendors’ fitted cleaning rod guides. Current offering are:

Rem 700: .222, .243, 6.5 Creedmoor, .280, .300, .308
Tubb Rifle: 6.5 Creedmoor
Ruger Precision Rifle: 6.5 Creedmoor
AR Platform: AR-10, AR-15

TIP: When using any cleaning rod guide, you should cover the rear of the stock with a towel to prevent any solvent from touching the stock. Solvents can harm find wood, painted, and hydro-dipped finishes.

Permalink New Product, Tech Tip No Comments »
June 2nd, 2017

Bore Cleaning 101: Speed Up the Job with a Wash Bottle

Wash Bottle

rifle bore cleaner bottle

Small patches are not very efficient at distributing bore cleaning liquids inside your bore. The problem with a tight-fitting patch is that the solvent gets squeezed off in the first few inches. You can switch to a smaller jag, or a bore mop, but there is an even better way to get an ample amount of solvent in your bore. Just spray directly into the bore with a wash bottle, an inexpensive plastic bottle with an L-shaped dispensing neck, tapered at the end.

When using the wash bottle, you can either just plug the breech and spray from the muzzle end (where most copper fouling is), or, alternately, put the wash bottle neck directly in the chamber and spray forward. When spraying from the chamber forward, you may need to use a rubber O-Ring to seal off the action… depending on the bore size and the particular wash bottle’s neck spout diameter. We prefer to plug the breech ans squirt from the muzzle.

Bottle Solvent Application Great for Smaller Bores
Using wet patches or wet brushes is an inefficient way to really saturate the tight bores of 17s, 20s, and 22s. Even with a cotton bore mop, most of the solvent will be squeezed out before it gets to the end of the bore, where most copper fouling occurs. For these smaller 17, 20, and 22-caliber bores, you can just take the wash bottle and stick the tapered nozzle right in the chamber. The tapered end will press fit in the throat, sealing off the chamber. With the barrel slightly nose-down, give the bottle a couple good squirts until the solvent mists out the muzzle. In just a few seconds, this will put more solvent in the bore than a half-dozen wet patches.

A solvent-filled wash bottle is also handy for wetting your brushes. It’s much easier to saturate a bore brush (without spilling solvent on your stock), by using the wash bottle. You can get wash bottles from USPlastic.com, Amazon.com, or lab supply stores.

Permalink Reloading, Tech Tip 2 Comments »
April 23rd, 2017

Barrel Cleaning TECH TIPS — Criterion’s Advice for Bore Cleaning

Criterion Barrels Cleaning Clean Solvent rod guide Hoppes Wipe-Out

This article comes from the Criterion Barrels website. It provides good, conservative advice about barrel cleaning. Understand that cleaning methods may need to be adapted to fit the amount and type of fouling (and the particular barrel). In general, we do try to minimize brushing, and we follow the procedures Criterion recommends respecting the crown/muzzle. We have also had very good success using wet patches followed by Wipe-Out bore foam. Along with the practices outlined by Criterion below, you may want to try Wipe-Out foam. Just be sure to use a fitted cleaning rod bore guide, to keep foam out of the action recesses and trigger assembly.

The above video shows how to apply Wipe-Out or other bore-cleaning foam. We use a slightly different method. First, we use 3-4 wet patches to remove loose carbon fouling. Then we apply the foam as shown, but usually from the muzzle end (with bore guide in chamber). Here’s the important point — after 20-30 minutes, once the bubbles have dissipated, we apply the foam a second time, getting more of the active ingredients into the barrel. We then patch out, as shown, after 3-4 hours.

What is the Best Way to Clean a Rifle Barrel?

We are asked this question quite frequently alongside requests for recommended break-in procedures. Improper barrel cleaning methods can damage or destroy a barrel, leading to diminished accuracy or even cause a catastrophic failure. When it comes to barrel maintenance, there are a number of useful techniques that we have not listed. Some techniques may work better with different barrel types. This series of recommendations is designed to incorporate a number of methods that the Criterion Barrels staff has used successfully both in the shop and on their personal rifles. Please feel free to to list your own recommendations in the below comments section.

We recommend the use of the following components during rifle cleaning:

• Cloth patches (sized for the appropriate caliber)
• Brass jag sized properly for your bore
• One-piece coated cleaning rod
• General bore cleaner/solvent (Example: Hoppes #9)
• Copper solvent of your choosing (Example: Sweets/KG 12)
• Fitted cleaning rod bore guide
• Plastic AP brush or toothbrush
• Q-Tips
• Plastic dental picks
• CLP or rust preventative type cleaner

There are a number of schools of thought relating to the frequency in which a barrel should be cleaned. At minimum we recommend cleaning a barrel after each shooting session to remove condensation, copper, and carbon build-up. Condensation is the greatest immediate threat, as it can cause the barrel to rust while the rifle sits in storage. Copper and carbon build-up may negatively impact future barrel performance, increasing the possibility of a failure in feed or function. Fouling should be removed whenever possible.

The below tips will help limit the wear of different parts of your barrel during routine maintenance, helping extend the life of the barrel and improving its performance.

The Crown
The crown is the portion of the barrel where the bullet loses contact with the lands and grooves and proceeds to exit the firearm. The area most critical to accuracy potential is the angle where the bullet last touches the bore of the barrel.

Avoid damage to this area by using a plastic toothbrush and CLP type cleaner to scrub the crown from the exterior of the barrel. Even the most minimal variation in wear to the crown will negatively impact barrel performance, so be careful to avoid nicking or wearing away this part of the barrel.

Reducing Cleaning Rod Wear to the Crown
When running a patch through the barrel, place the muzzle about a ¼” from a hard surface that runs flat at a perpendicular angle to the cleaning rod’s direction of travel, like a wall or the edge of a work bench (pictured). When the jag impacts the hard surface, retract the cleaning rod and remove the patch.

By withdrawing the jag prior to its exit from the barrel, you are limiting the possibility of the brass dragging upon the crown if the rod is at all bent or misaligned. The soft cloth patch will continue to serve as the point of contact between the jag and the barrel, minimizing potential wear.

If possible, insert the rod through the chamber, pushing it forward toward the muzzle. Some rifles, such as the M1 Garand or M14, will require you to insert the cleaning rod through the muzzle. In these situations the use of a cleaning rod guide is recommended to limit the friction placed upon the crown.

Avoid using cleaning rod segments for scraping carbon from the recessed muzzle of an AR-15 barrel. We used this trick in the Marine Corps to impress the armorers and NCO’s with the cleanliness of our muzzles, but it likely played a significant role in reducing the service life of the rifle barrel in question.

Use a Q-Tip soaked in solvent to remove any copper or carbon residue from the recessed muzzle of an AR-15 barrel. A little bit of remaining carbon on the face of the muzzle will not negatively affect bullet travel so long as the crown edge remains consistent around the circumference of the bore.

The Lands and Grooves
This portion of the barrel may experience reduced efficiency due to copper fouling and cleaning rod damage. If copper fouling takes place during the initial break-in of the rifle, make sure to check our barrel break-in article.

For regular maintenance we suggest using a single piece coated cleaning rod rather than the traditional segmented rod or bore snake. While segmented rods and bore snakes may be convenient for field use, the corners between the segments may bow out and catch on the lands, scraping along the length of the rifling. Residual grit and particles from expended cartridges may also get caught between segments, resulting in an abrasive surface working its way down the length of the barrel. Most bore snakes will remove significant amounts of carbon fouling, but may fall short in the removal residual carbon buildup and copper fouling during deep cleaning. Good rods can be sourced from multiple manufacturers, but we have found good results using both Pro-Shot and Dewey brand products.

General cleaning requires the use of patches rather than nylon or brass bore brushes. Brass brushes may be required when aggressive cleaning is required, but can lead to unnecessary wear on the barrel if used frequently. This is not due to the nature of the soft brushes themselves, but from the abrasive particles of grit that become embedded in the material that is being run repeatedly through the bore. We recommend the use of bore guides when cleaning from both the muzzle and breech. These bore guides will help serve to protect the crown and throat from cleaning rod damage.

If significant resistance develops while running the cleaning rod through the bore, no attempt should be made to force it in further. Back the rod out and inspect the barrel to determine the cause of the resistance. The jag may be pushing between a bore obstruction and the rifling, digging a divot into the barrel before pushing the obstruction back through the muzzle. One way to minimize the risk of a stuck rod is by utilizing a slightly smaller patch during the initial push.

The process of cleaning the length of the rifling is relatively straightforward:

1. Check to make sure the rifle is safely unloaded.
2. Carry out any necessary disassembly procedures prior to cleaning.
3. Remove bolt (if possible) and insert fitted cleaning rod bore guide in action.
4. Soak a patch in bore solvent (similar to Hoppes #9).
5. Center and affix the patch on the brass jag, inserting it into the chamber end of the barrel. A misaligned patch may cause the jag to damage the lands of the rifling, so make sure the patch is centered on the jag.
6. Run the patch the full length of the barrel, retracting it upon reaching the end of the muzzle.
7. Let the solvent sit for a minute.
8. Continue to run patches through the bore until carbon residue is minimized.
9. Run a dry patch through the bore to ensure carbon residue has been removed.
10. Soak a patch in copper solvent (Sweet’s or KG-12).
11. Run the patch through the bore, leaving it to sit for 3-5 minutes (do not let solvent sit for more than 15 minutes.*)
12. Repeat this process until no blue residue remains on the patches.
13. Run a patch of Hoppes #9 and a dry patch through the bore to neutralize the copper solvent.
14. Inspect the barrel prior to reassembling the rifle, verifying that no bore obstructions remain.

*Please note that some ammonia-based copper solvents may prove to be corrosive if left sitting in the barrel for an extended period of time. It is essential that these solvents be removed within 15 minutes to avoid ruining the bore.

The Chamber
Proper cleaning of the chamber is a critical component of a general cleaning procedure. Carbon rings can build up near the neck and throat of the chamber wall, leading to feeding malfunctions and pressure spikes inside the chamber.

The chamber can be the trickiest part of the barrel to effectively clean, due to its fluctuation in size and the awkward ergonomics often required to remove carbon residue. Numerous chamber specific devices have been created to address this problem, and while some should be avoided (steel chamber brushes), others can be used to great effect (cleaning stars and plastic dental picks). The simplest approach to cleaning a chamber is to apply solvent to a couple patches, and use the cleaning rod to spin the wadded up patches inside the confines of the chamber. This should aid in removing any excess carbon. A Q-Tip can be used to reach portions of the chamber unreached by patches.

The Barrel Exterior
While the condition of the crown, rifling, and chamber are essential to firearm performance, the finish of the exterior should also be cleaned after handling. Condensation, humidity, direct water contact, and salt residue from skin contact can cause rust or corrosion. An application of anti-corrosion products is recommended when placing a firearm into deep storage for an extended period of time. [Editor: AccurateShooter.com recommends Corrosion-X or Eezox, but other products work well too.]

Finding Cleaning Components
While most cleaning components can be found at your local gun shop, some specialty items may need to be sourced through online retailers such as Brownell’s. Criterion utilizes both Dewey and Pro-Shot brand cleaning components during our day-to-day operations.

Do you have any rifle cleaning tips or tricks not mentioned in the above article? We’d love to hear about them. You can post your comments below.

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January 27th, 2016

Tech Tip: Wash Bottles Speed Barrel Cleaning

rifle bore cleaner bottleOne of our Forum readers complained that his 6mm jags fit very tight with patches, making it difficult to apply much solvent. The problem with a tight-fitting patch is that the solvent gets squeezed off in the first few inches. You can switch to a smaller jag, or a bore mop, but there is an even better way to get an ample amount of solvent in your bore — just spray it in with a “wash bottle”. This is an inexpensive plastic bottle with an L-shaped dispensing neck, tapered at the end. You can either just plug the breech and spray from the muzzle end (where most copper fouling is), or, alternately, put the wash bottle neck directly in the chamber and spray forward. When spraying from the chamber forward, you may need to use a rubber O-Ring to seal off the action… depending on the bore size and the particular wash bottle’s neck spout diameter.

Bottle Solvent Application Great for Smaller Bores
Using wet patches or wet brushes is an inefficient way to really saturate the tight bores of 17s, 20s, and 22s. Even with a cotton bore mop, most of the solvent will be squeezed out before it gets to the end of the bore, where most copper fouling occurs. For these smaller 17, 20, and 22-caliber bores, you can just take the “wash bottle” and stick the tapered nozzle right in the chamber. The tapered end will press fit in the throat, sealing off the chamber. With the barrel slightly nose-down, give the bottle a couple good squirts until the solvent mists out the muzzle. In just a few seconds, this will put more solvent in the bore than a half-dozen wet patches.

A solvent-filled wash bottle is also handy for wetting your brushes. It’s much easier to saturate a bore brush (without spilling solvent on your stock), by using the wash bottle. You can get wash bottles from USPlastic.com, Amazon.com, or lab supply stores.

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