The U.S. Army Marksmanship Unit (USAMU) has published a great series of reloading “how-to” articles on its Facebook Page. This post covers key factors to consider when loading ammunition for Match Rifles and Service Rifles, with a particular focus on self-loading “gas guns”. Visit the USAMU Facebook Page regularly for other, helpful reloading and marksmanship tips.
We offer some “cardinal rules” to help new gas-gun handloaders with safety and efficiency. These address both Match Rifle and Service Rifle versions of the AR15, M1 Garand, M1A, and M110. However, they can also improve safe reloading for many other auto-loaders such as M1 Carbines, FALs, SIGs, etc. The author distilled these principles many years ago to help focus on the essential aspects of these rifles.
RULE ONE: Service Rifles Are Not Benchrest Rifles
Gas-guns require a relatively loose fit between ammunition and chamber (vs. bolt actions) for safe, smooth operation. Many techniques, such as neck sizing and keeping cartridge headspace quite tight, are popular in the extreme bolt gun accuracy realm. However, they are of little value with Service Rifles, and some could even be hazardous. Before adopting a specialized technique, seriously consider whether it is appropriate and beneficial in a gas-gun.
RULE TWO: Never Compromise Safety to Obtain Accuracy
Example: If choosing a brand of great, but ultra-sensitive match primers offers possibly better accuracy at the risk of slam-fires in your design of rifle, don’t do it! You are issued exactly two eyes and ten fingers (best-case scenario). Risking them trying to squeeze 0.25 MOA better accuracy out of an M1A, etc. simply isn’t worth it.
RULE THREE: Tailor the Precision to Your Individual Skill and Your Rifle’s Potential
This has been addressed here before, but bears repeating for newcomers. If you are struggling to break out of the Marksman Class, or using a CMP M1 “As-Issued,” then laboriously turning the necks of your 600-yard brass is a waste of time. Your scores will improve much faster by practicing or dry-firing. On the other hand, if the reigning champions anxiously check your scores each time you fire an event, a little neck-turning might not be so far-fetched.
Verifying Load Improvements — Accuracy hand-loading involves a wide variety of techniques, ranging from basic to rather precise. Carefully select those which offer a good return on investment for your time and labor. In doubt? Do a classic pilot study. Prepare ammo for at least three or four ten-shot groups with your new technique, vs. the same with your standard ammo. Then, pick a calm day and test the ammo as carefully as possible at its full distance (e.g. 200, 300, or 600 yards) to verify a significant improvement. A little testing can save much labor!
This video explains the procedure for ordering an M1 Garand from the CMP.
RULE FOUR: Be Your Own Efficiency Expert
Serious Service Rifle shooters generally think of ammunition in terms of thousands of rounds, not “boxes”, or even “hundreds”. Analyze, and WRITE DOWN each step in your reloading process. Count the number of times each case is handled. Then, see if any operations can be dropped or changed without reducing safety or accuracy. Eliminating just two operations saves 2000 steps per 1000 rounds loaded. Conversely, carefully consider any measurable benefits before adding a step to your routine.
RULE FIVE: In Searching for Greater Accuracy with Efficiency, Look for System Changes
For example, instead of marking your 300-yard rounds individually to differentiate them from your 200-yard ammo, would a simple change in primers work? If accuracy is maintained, using brass-colored primers for 200 and silver for 300 provides an indelible indicator and eliminates a step! Similarly, rather than spending hours selecting GI surplus brass for weight and neck uniformity, consider splurging on some known, high-quality imported match brass for your 600-yard loads. Results should be excellent, time is saved, and given limited shooting at 600 yards, brass life should be long.
RULE SIX: Check All Your Primers Before Packaging Your Loaded Ammo
This seems simple and even intuitive. However, many slam-fires (which were much more common when M1s and M1As were the standard) are due, at least in part, to “high” primers. Primers should be seated below flush with the case head. The USAMU has addressed this at length in a previous column, but each round should be checked for properly-seated primers before they are packaged for use.
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At the request of our readers, we provide select “Deals of the Week”. Every Sunday afternoon or Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, optics, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
NOTE: All listed products are for sale to persons 18 years of age or older. No products are intended for use by minors.
1. Creedmoor Sports — Sightron Competition Optics Sale
⏺ Save Hundreds on excellent Sightron Scopes
Need a high-magnification scope for your Benchrest, F-Class, or ELR match? Then head over to Creedmoor Sports. Now through 2/29/2024 there are great savings on a wide range of Sightron optics including the amazing SV ED 10-50x60mm, the popular SIII Long Range 8-32×56 SFP, plus 36X and 45X fixed power Comp ED models. Save up to $450 now with this sale.
2. MidwayUSA –Hundreds of Deals under $25.00
⏺ Hundreds of bargain products, all under $25.00
Looking for a bargain? MidwayUSA has a special section for products priced under $25.00. There you’ll find great deals on budget-priced items including ammo, bullets, magazines, knives, scope covers, solvents, and more. CLICK HERE to see everything you can buy for under $25.00. You’ll be tempted by these bargains, such as a handsome pair of Buck Knives for just $21.99 (66% off).
3. Palmetto SA — PSA Dagger compact 9mm, $349.99
⏺ Excellent value in 9mm optics-ready pistol
Who doesn’t love a well-made 9mm pistol that’s fun to shoot and super reliable. If you’re looking for something to fit the bill, grab this Optics-Ready PSA Dagger Compact 9mm for only $349.99. Chambered in 9x19mm, the Palmetto Dagger is fed from a supplied PMAG® 15 GL9 (15-Round) magazine and operated by a smooth single-action striker-fired trigger mechanism like a Glock. The slide is compatible with RMR pattern optics. You can also get an all-black Dagger 9mm pistol for the same $349.99 price as well.
4. Creedmoor Sports — Hornady Match Ammo Sale
⏺ Good ammo option for competitors who do not hand-load
Will you be competing with a .308 Win or 6.5 Creedmoor this spring, but aren’t set up to hand-load? Consider Hornady Match Ammo, on sale now at Creedmoor Sports. This ammunition shoots very well based on buyer reports. Hornady Match Ammo utilizes Hornady ELD Match, A-MAX, or high-performance boat-tail hollow point bullets. This ammo has delivered good accuracy with consistent velocities.
5. EuroOptic — Timney AR Trigger Sale
⏺ Big savings on quality triggers for AR-platform rifles — Save $64
Whether you shoot 3-Gun matches or just for fun, having a good trigger on your AR makes it much better. A great choice is the Timney Impact Trigger. Now just $99.99 on sale, the Impact Trigger for AR-platform rifles provides a provides an excellent, consistent trigger pull at a modest price. The Timney Impact is offered with either curve or straight trigger blade, and will provide a clean, 3-4 pound break in your AR.
6. Amazon — Deyace Extra Large Shooting Mat, $37.99
⏺ Nice, relatively big shooting mat with good padding
When shooting prone, you need a good shooting mat. The Deyace Extra Large padded shooting mat is a great value for just $37.99. Measuring a generous 78″x28.5″, this XL mat has nice padding for elbows and knees, and the mat folds up nicely for transport. This mat is offered in four colors: Green, Tan, Tan Camo, and Black. For transport, we like this mat’s integral straps and carry handle.
⏺ Comfortable, versatile, weather-proof jacket for outdoor adventures
Need a jacket to keep the wind and rain out when you’re in the field or at a match? This ReFire Gear Men’s Tactical Jacket features 100% polyester soft shell fabric, with a thermal fleece liner. The exterior fabric is wind and water repellant. This jacket features 2 large zippered chest pockets; 2 back pockets; 2 small left sleeve pockets, and 1 small pocket on right sleeve. This jacket is offered in five color options: Khaki, Army Green, Navy Blue, Gray, and Black.
⏺ Excellent cleaning kit for pistols, rifles, and shotguns
To maintain your firearms you need good gun-cleaning gear. A great option is the Gloryfire Elite Gun Cleaning Kit. This has a very complete selection of tools for small to large calibers (pistols, rifles, shotguns). This kit includes cleaning rod assembly, bronze jags, bore brushes, bore mops, general cleaning brushes, a lubricant bottle, and even a chamber flag.
⏺ Improve your pistol shooting with special targets
If you can’t hit center when pistol shooting do you know how to fix your mistakes? With these clever Diagnostic pistol targets (#ad) you can quickly figure out your mistakes based on shot impact location. For example if the shot hits low, you may be breaking your wrist down. These targets have nine diagnostic zones. This target is offered in both left- and right-handed versions, with a 10-pack for $9.99 on Amazon.
10. Palmetto State Armory — Banana Magazines
⏺ Funny, yes but functional too — real world banana mags
You may have heard the term “banana mag” referring to high-capacity rifle magazines with a banana-like curvature. Well Palmetto State Armory actually sells banana-style mags for ARs and 9mm AKs which have a cool, banana-style yellow finish. The href=”https://bit.ly/3tG5Cr6″ target=”_blank” rel=”noopener”>PSA Palmetto Banana Magazine combines fun and functionality for semi-auto rifle shooters. Chose the 30-rd 5.56 (.223) AR magazine or the 35-rd AK-V 9mm magazine, each priced at $29.95.
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Black Friday, the major discount day, was two days ago. For many vendors, Black Friday discounts continue all weekend through Cyber Monday, 11/27/23. So there are some spectacular pistol, shotgun, and rifle bargains offered today and tomorrow. In addition, many very high-quality rifle chassis systems are on sale. If you’re looking for a new handgun, rifle, or shotgun, or need a chassis for a new rifle project, now’s a great time to shop.
Here are some of the best long gun deals we’ve found. Don’t hesitate, as these deals are short-lived. Most of the specials are good through 11:59 pm on Monday, November 27, 2023. However, some of the sales expire tonight, Sunday 11/26/2023 at 11:59 pm Central Time.
Browning X-Bolt Stalker Long Range in .300 Winchester Magnum
The Browning X-Bolt Stalker in .300 WinMag features a 26″ barrel with muzzle brake, removable magazine, extended bolt handle, and black composite stock with adjustable comb. Complete with a Browning 4-12x40mm AO scope, this rifle was originally $1149.00. Now CDNN has discounted the price to $949.00. And it gets even better. For purchases November 22-27, Browning is offering a $100 factory mail-in rebate. That lowers your net cost to just $849.00 — a great deal for a serious large-game hunting rifle.
Savage 110 Hunter XP with 4-12x40mm Vortex Diamondback Scope — Multiple Calibers
If you want a solid, accurate hunting rig with a top-tier camo stock, look no further. Right now at Cabela’s/Bass Pro, the Savage 110 Hunter XP with TrueTimber VXP camo stock is on sale for $749.98, a $70.00 savings. This handsome rifle is available in a wide variety of calibers/chamberings: .243 Win, 6.5 Creedmoor, .270 Win, 7mm Rem Mag, .308 Win, .300 Win Mag, .30-06 Springfield, and 350 Legend. NOTE: Today 11/26/2023 is the last day for this Cabela’s/Bass Pro discount pricing, so don’t delay.
Christensen Arms Ranger .22 LR with Carbon-Wrapped Barrel
The Ranger 22 brings a rimfire back to the Christensen Arms lineup. The bolt-action Ranger 22 features an aluminum receiver with Picatinnny rail, Christensen Arms carbon fiber tension barrel with Bentz match chamber, and carbon fiber composite stock. The Ranger 22 rifle boasts a nice “match grade” Rem 700 style trigger. These rifles shoot well — Christensen Arms backs the Ranger 22 with a Sub-MOA at 50 Yards Guarantee. Right now the Ranger 22 is on sale at Palmetto SA for $729.99, a $270.00 savings off the regular $999.99 price.
Winchester SXP 12ga Shotgun, $179.99 After Winchester Rebate
This may be the shotgun steal of the year. Right now you can get a Winchester SXP 12ga pump shotgun with 26″ or 28″ barrel for just $254.99, marked down from $324.99. But it gets even better. Winchester has a $75 factory rebate good for Super X Pump (SXP) firearms purchased November 20-27, 2023. So if grab one of these today or tomorrow your net cost is just $179.99! That’s a steal — you could pay twice that just for a barrel these days. If you want something fancier, Kygunco also has a wood stocked SXP for $244.99 (after rebate) and a nice SXP waterfowl with Mossy Oak Camo for $294.99 (after rebate).
WOOX Metal/Wood Hybrid Chassis Systems — $100-$300 Off
WOOX offers unique, handsome hybrid chassis systems that combine modern high-tech metal frameworks with fine-finished highly-figured wood forearms, grips, and butt-stock segments. Right now, a variety of these Woox metal and wood chassis systems are deeply discounted, so you can save from $100 to $300. NOTE: These sale prices on hybrid chassis systems are good through 11:59 pm on Monday 11/27/2023.
Video shows how WOOX hybrid chassis is crafted with metal and high-grade wood components.
Palmetto State Armory (PSA) EPT AR-15 Platform Rifle
This rifle, a top seller among PSA’s extensive AR line-up, has earned overwhelming 5-star reviews from verified buyers. Now through Monday get this great PSA AR15-platform rifle for just $579.99 complete with MBUS sights and adjustable buttstock. This PSA EPT rifle has a 16″ chrome-moly vanadium steel barrel chambered in 5.56 NATO, with a 1:7″ twist rate, and mid-length gas system. This rifle features a lightweight M-LOK handguard for easy accessory attachment. The upper includes a Picatinny rail for mounting optics. This PSA EPT rifle even comes with FREE Shipping.
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Sierra Bullets has released load data for the 6.5 Grendel, a popular cartridge that works equally well in bolt guns and AR15-platform gas guns. Sierra published comprehensive 6.5 Grendel load data, covering 19 powders and eight (8) different bullets from 85 to 130 grains. NOTE: Hornady-brand brass (see below) was used for Sierra’s 6.5 Grendel tests, not the stronger Lapua 6.5 Grendel brass. Hand-loaders using Lapua 6.5 Grendel brass may need to adjust their loads. Also Winchester WSR primers were used. We imagine most precision hand-loaders will prefer CCI or Federal primers.
Sierra Bullets Tested for 6.5 Grendel Load Data
85gr HP (#1700)
100gr HP (#1710)
107gr HPBT (#1715)
In developing its 6.5 Grendel load data, Sierra tested a very wide selection of propellants, 19 in all. For the 85gr to 100gr varmint bullets, modern powders such as XMR 2230, Power Pro Varmint, and Ramshot TAC offered the best velocity in the 24″ test barrel. For the heavier 120gr to 130gr match bullets, Sierra tested a selection of powders. Highest velocities came with Power Pro Varmint and TAC. If you’re looking for best accuracy, consider the slower burn-rate powders such as IMR 8208 XBR and Varget — but you’ll sacrifice some speed. Overall, Sierra’s latest 6.5 Grendel load data is an excellent addition to the 6.5 Grendel knowledge base. Thanks Sierra!
Here are Sierra’s 6.5 Grendel Load Data Charts for Sierra’s 123gr HPBT, 130gr HPBT, and 130gr TMK. There are a five other tables for lighter-weight Sierra bullets.
History of the 6.5 Grendel Cartridge
The 6.5 Grendel originated as a 6mm PPC necked up to 6.5 mm. After Alexander Arms relinquished the “6.5 Grendel” Trademark, the 6.5 Grendel was standardized as an official SAAMI cartridge. It has become popular with target shooters and hunters alike because it is accurate, efficient, and offers modest recoil. Good for small to medium game, the 6.5 Grendel is available in lightweight hunting rifles, such as the Howa Mini Action Rifle. And the 6.5 Grendel is one of the most accurate cartridges suitable for modern AR-15 platform rifles.
At the request of our readers, we provide select “Deals of the Week”. Every Sunday afternoon or Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, optics, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
NOTE: All listed products are for sale to persons 18 years of age or older. No products are intended for use by minors.
1. Midsouth — Garmin Xero C1 Pro Radar Chronograph, $599.99
⏺ Advanced new compact radar chronograph — testers are impressed
The new Garmin Xero C1 Pro chronograph has hit the market. Initial reports have been very positive, and the price is attractive — $599.99. The new Xero C1 Pro radar chronograph, measuring just 3.03″x2.38″x1.36″, is compact and easy to transport. Using Doppler radar, the Xero C1 Pro accurately records velocities from 100 FPS to 5000 FPS, so it works with all kinds of projectiles. Setup is simple and intuitive, thanks to the button-operated design. SEE FULL RecoilWeb Review (many photos).
⏺ Amazingly low prices on 16″ barrel AR-15 — good basis for varmint rifle
If you’re in the market for an AR15-platform rifle, here’s a great deal. For just $399.99 you can grab this Radical Firearms SOCOM AR15 5.56 rifle. That’s less than you’d pay for a Glock. This Radical Firearms 16″ barrel AR rifle uses MIL-STD Upper and lower receivers and has a 16″ barrel with flash hider. A full accessory rail extends along the upper receiver and modern RPR free float handguard. The buttstock is adjustable for length.
3. Powder Valley — Factory Second Bullets
⏺ Save 30-50% on major brand bullets
Right now Powder Valley is running a sale on major-brand bullets in a wide range of calibers and styles. With this promo you save save up to 50% on factory second bullets. You can recognize some makers from the bullet styles and tips. With these bullet discounts you can do a lot more rifle and pistol practice. This factory second bullet sale will expire soon so don’t delay.
4. Sportsman’s WH — Leupold Gold Event Sale + Gift Cards
⏺ Major savings plus Sportsman’s Warehouse gift cards
If you’ve been shopping for riflescopes, spotting scopes, rangefinders, and/or binoculars head over to Sportsman’s Warehouse for the Leupold Gold Event. There are major discounts on a wide range of quality optics. Along with the sale price reductions, Sportsman’s Warehouse gives buyers a FREE gift card with many Leupold products. The value of the gift card is based on the purchase price with a max $300 card value. This gift card deal runs through 10/31/2023.
5. Creedmoor Sports — ADG Brass Sale
⏺ ADG brass is high quality and handles strong loads.
Great ammo starts with good brass. American-made ADG Brass is high-quality stuff, used by many top shooters. ADG brass has a reputation for consistency and long life cycle, and it holds up with with strong competition loads. If you haven’t tried ADG brass yet, this Creedmoor Sports sale is a good opportunity. There is a good selection of modern and magnum cartridge types including 6.5 PRC, 7 SAUM, 7 PRC, 28 Nosler, 7mm Rem Mag, 300 WSM, 30 Nosler, 300 PRC, 338 Lapua Mag and many more.
6. Amazon — Lyman Case Trim Xpress, $114.99
⏺ Very good trimmer — quick adjustments; 10 bushings provided
Precision reloading demands consistent brass trim length. However, with many case trimmers it’s a pain to adjust trim length, plus the hand-cranking becomes tiresome. A better, more efficient case trimming solution is offered by the Lyman Trim Xpress. We like this case trimmer for good reason. The smart design allows for fast .001″ trim length adjustments with the click of a dial. The tool ships with 10 bushings that cover the most popular neck sizes on the market.
1911 style single-action pistols have always been popular because they are accurate, and can be easily customized. If you’re looking for a modern 1911 that’s quite affordable, consider the SDS Imports 1911 Devil Ray Carry on sale now at Palmetto State Armory. This 1911 Devil Ray .45 ACP pistol boasts a forged steel frame with Ed brown-style bobtail frame cut. This design makes CCW carry easier.
8. Amazon — Frankford Arsenal Brass Tumbler, $47.99
⏺ Sturdy, effective tumbler at a very attractive price
For removing dirt, fouling, and sizing lube, a brass tumbler is a very useful tool for hand-loaders. We like the Frankford Arsenal Quick-N-EZ Vibratory Case Tumbler (#ad). The Frankford Tumbler’s bowl is designed to increase brass agitation for fast, aggressive cleaning that reduces wear on reloading dies and extends brass life. It has a clear lid for monitoring tumbling action with cord-mount ON/OFF switch for safety and convenience.
9. Amazon — Cleaning Patches and Swab Set, $13.99
⏺ Very complete cleaning set with 600 patches, 400 swabs
Proper gun maintenance requires cleaning bore, chamber, and the little nooks and crannies. Many key cleaning tasks can be done with this Cleaning Package (#ad) with 600 2″ Cleaning Patches and 400 6″-long Gun Cleaning Swab pack. The patches will work with all types of firearms and can be trimmed for smaller diameter barrels. The swabs are great for cleaning inside of actions and mag wells.
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Kevin Muramatsu’s black rifle book, the Gun Digest Guide to Customizing Your AR-15, is a great resource for fans of AR-platform rifles. All the AR options you can imagine are covered: suppressors, premium barrels, adjustable stocks, free-float handguards, ergonomic grips, buffer systems, tactical lights and much more. Those planning an AR rifle build will find application-specific suggestions for 3-Gun, Service Rifle, High Power (Space Gun), Hunting, and Self-Defense use.
Firearms expert Muramatsu offers advice on choosing the right stock/barrel/optics configuration for your particular game. He also discusses the wide variety of options for slings, grips, magazines and other accessories. With over 520 photos, the book includes a large photo gallery of customized ARs, and includes bonus coverage of the FAL and other “tactical” firearms. The Gun Digest Guide to Customizing Your AR-15 is available from Amazon.com (#ad) for $35.95, and a Kindle eBook version is offered for $14.99. The book is also sold by Barnes & Noble, and most other major booksellers.
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AR-platform rifles can be maintenance-intensive beasts. But some AR owners make the situation worse by not regularly cleaning important small parts, or by using too much oily/greasy lubricants in the wrong places. A properly maintained and lubricated AR15 can shoot hundreds of rounds (between cleanings) without a problem. If you learn where (and where not) to apply lubricant, you’ll find that your AR will run more reliably and the task of cleaning the bolt and bolt carrier will be less of a burden.
Here is a good video that explains AR-15 Cleaning and Maintenance. In this 30-minute NSSF video, Gunsite Academy instructor and gunsmith Cory Trapp discusses the proper way to clean and maintain the AR-15 carbine. Very knowledgeable, Trapp provides rock-solid advice for AR owners. Along with cleaning procedures, this video explains how to inspect key components and how to function-test your AR before each shooting session.
If you want to keep your black rifle running smoothly and reliably, you must clean it regularly and follow the correct maintenance procedures. Here’s another good video that explains how to properly disassemble and clean AR-platform rifles.
Take-Down and Full Cleaning of AR15 by Jerry Miculek
Here ace shooter Jerry Miculek takes down and cleans an AR-platform rifle belonging to his daughter Lena. This is a good video because Lena’s rifle was “run hard and packed up dirty” so you can see where carbon and grease build up. This 35-minute video is very thorough. Jerry is one of the nation’s top action carbine shooters, so listen carefully to his advice on cleaning and lubrication.
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AR owners know that their black rifles require regular cleaning and maintenance. And this modular platform allows many options for stocks, fore-arms, and optics mounting. That ability to customize is one of the AR’s major attractions, but customization requires solid understanding of the AR’s design and components.
To help AR owners optimize their rifles and maintain their rifles properly, Gun Digest Media offers an excellent 320-page illustrated book: AR-15 Setup, Maintenance and Repair. Authored by Patrick Sweeney, this book is a “one-stop guide to repairing, maintaining and modifying America’s favorite rifle.” The MSRP for the paperbook resource is $33.99 from Gun Digest, but it is available on Amazon starting at $25.13 with $3.99 shipping. Digital editions are offered by GunDigest for $31.99.
If you need to disassemble and maintain your AR rifle, swap barrels or handguards, add optics, or customize the stock, Gun Digest’s AR-15 Setup, Maintenance and Repair book tells you what you need to know. From field-stripping to barrel mounting and trigger installations, the book covers a wide range of topics. The book provides step-by-step instructions for set-up and maintenance, with hundreds of detailed photos. The book also includes AR gunsmithing chapters with reviews of recommended tools.
Author Patrick Sweeney is a certified master gunsmith and armorer instructor for police departments. Sweeney has also authored the notable 4-volume Gunsmithing the AR-15 series (Vol. 1, Vol. 2, Vol. 3, and Vol. 4) and 20+ other titles for Gun Digest Books.
Whether you want to learn about disassembling your AR for regular maintenance, field-stripping, swapping out parts, adding optics or customizing a stock, AR-15 Setup, Maintenance and Repair guides you through everything you need to know to keep your AR-platform rifle running well. There are also tips on how to improve accuracy, and maintain your bolt carrier group properly.
Authored by Patrick Sweeney
Published by Gun Digest Books
ISBN-13: 978-1951115470
320 pages, softcover, 8 ¼ x 10 7/8 inches
Editor’s NOTE: The key to keeping an AR running reliably is proper lubrication (in the RIGHT places), and regular cleaning of the bolt carrier and bolt, including ejector recess and extractor recess. The majority of non-functioning ARs we’ve seen had gunk, lube, carbon, and brass shavings in those recesses.
Other AR Books by Patrick Sweeney
Bonus Video — AR15 Maintenance with Jerry Miculek
In this helpful video, legendary shooting Jerry Miculek explains how he cleans and maintains his AR-platform rifles. Miculek shoots ARs in three-gun competitions.
This article is Copyright 2023 AccurateShooter.com. No republication is allowed without advance permisson and fees.
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Do you own or shoot an AR-platform “black rifle”? Then you know these rifles run dirty, and have some unusual maintenance requirements. On the other hand, the AR “Modern Sporting Rifle” is fun and versatile with a vast range of options among buttstocks, barrels, handguards, and grips. You can assemble a simple 16″ barrel .223 Rem rig for home defense, or build a long-barreled 6mm ARC rifle with bag-rider buttstock and high-magnification optic for long range target work. The choice is up to you.
To help with your black rifle journey, here are four helpful videos from Brownells. These will help ensure your AR rifle cycles reliably and runs longer, with reduced wear. Brownells also explains how to choose the optimal barrel twist rate. CLICK HERE to order AR parts, accessories, and ammo from Brownells.
AR Bolt/Bolt Carrier Lubrication — Smarter Methods
This video shows the proper way to lubricate an AR-15 bolt-carrier assembly. The video identifies the key metal-on-metal friction points where you actually need lubrication: the rails on the underside of the carrier, shiny wear points on top, and just a dab on the cam pin. How much oil/lubricant should you use? The AR-15 is pretty forgiving on that point. Some spots work best with grease, others work best with a lighter oil. Just keep it out of the combustion areas. Those little holes in the carrier are gas vent holes, NOT oil holes!
AR Barrel Twist Rates — What You Need to Know
AR barrels can be ordered with a variety of twist rates from 1:12″ to 1:7″. Basically, the longer/heavier the bullet you plan to shoot, the faster the twist rate you need. For example, Sierra recommends a 1:7″ twist rate for the 90gr SMK. A 1:12″ could work with the small lightweight bullets up to 55 grains. The 1:9″ barrel will stabilize the light and mid-weight bullets up to about 77 grains. We recommend a 1:8″ or 1:7″ twist rate for the best versatility. You’ll find a detailed discussion of AR twist rates on PewPewTactical.com.
Barrel Gas Block Alignment — Key to Reliable Cycling
In this Tech Tip, Brownells gun tech Steve Ostrem explains surefire methods to align your gas block. The most common problem with AR builds is poor cycling, commonly caused by misalignment between the gas block and the barrel’s gas port.
Setting Up Gas Tube Systems
This Tech Tip examines AR-platform gas systems, and shows how to select the proper length gas tube, and how to configure multiple tube systems if you change your barrel to different lengths. This is worth watching for anyone re-barreling an AR.
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AR-platform rifles can be maintenance-intensive beasts. They need regular inspection, cleaning, and lubrication. But some AR owners make the situation worse by not regularly cleaning important small parts, or by using too MUCH oily/greasy lubricants in the wrong places. A properly maintained and lubricated AR15 can shoot hundreds of rounds (between cleanings) without a problem. If you learn where (and where not) to apply lubricant, you’ll find that your AR will run more reliably and the task of cleaning the bolt, bolt carrier, and upper receiver internals will be less of a burden.
Here we showcase videos that show how to field-strip an AR-15, inspect the key parts, clean components, and lubricate internal parts as needed. Along with these videos, we recommend you read the comprehensive AR-15 Gun Cleaning Clinic article on the Brownells website. This explains in detail important procedures that the videos might only cover in a few seconds.
If you want to keep your black rifle running smoothly and reliably, you must clean it regularly and follow the correct maintenance procedures. Here are five videos that explain how to properly disassemble and clean AR-platform rifles.
1. How To Clean Your AR-15 | Cleaning and Maintenance Tips
This is a quick 90-second starter video that may help new AR owners. Ricky Lehnhardt of OTIS Technology demonstrates the basics of cleaning and maintaining your AR-15. Lehnhardt does a good job identifying the points that need cleaning on the inside of ARs. However he works very quickly in the video. You may want to pause the video at some points. Also, Lehnhardt employs a cable for pulling patches and brushes through the barrel. Yes this is fast and easy. However, for match AR rifles, we recommend that you instead use a cleaning ROD with fitted bore guide.
2. Take-Down and Full Cleaning of AR-15 by Jerry Miculek
Here ace shooter Jerry Miculek takes down and cleans an AR-platform rifle belonging to his daughter Lena. This is a good video because Lena’s rifle was “run hard and packed up dirty” so you can see where carbon and grease build up. This 35-minute video is very thorough. Jerry is one of the nation’s top action carbine shooters, so listen carefully to his advice on cleaning and lubrication.
3. AR-15 Maintenance: Field-strip, Clean and Lubricate an AR-15
Gunsite Academy instructor and gunsmith Cory Trapp demonstrates the proper way to field-strip, clean, and lubricate an AR-15 carbine. In this 30-minute video, Trapp offers several important technical tips and hints. For example, at 11:05 Trap demonstrates how to determine if your bolt needs new gas rings. Along with cleaning procedures, this video explains how to inspect key components and how to function-test your AR before each shooting session.
4. AR-15 Dissassembly and Cleaning Guide
This video does a good job, with close-ups, showing how to remove the bolt carrier and clean the inside of the upper receiver. Then you can see how to work with various tools to clean the bolt, bolt carrier, and inside of chamber. We also recommend that you inspect the ejector recess and extractor recess. When we’ve inspected ARs that failed to cycle properly, we have often found nasty gunk (mixture of carbon, greasy lube, and brass particles) in these areas.
5. Basic AR-15 Quick and Easy Field Maintenance
In this NSSF-sponsored video, pro shooter Ryan Muller demonstrates basic, quick field maintenance of his AR-15. This would be for a quick cleaning and lubrication of the reciprocating parts. This covers rapid maintenance in the field. For full field-stripping and thorough cleaning, watch the previous videos.
Handy Mat for Cleaning AR Rifles
When working on an AR-15, it’s smart to have a pad that can absorb solvents and cushion your upper and lower. The $24.99 Real Avid Smart Mat is a good choice. This features printed take-down instructions and it has a handy parts tray on the right side. The mat rolls up for convenient storage. Click HERE to learn more.
Vital Inspections You Should Do After Disassembly
Last but not least, here are recommended inspections you should do every time you do a full field-strip and cleaning of your black rifle:
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Here’s a great opportunity for someone looking for an AR rifle or upper. Right now Bear Creek Arsenal, a leading AR manufacturer, is offering complete uppers as low as $179.90 and complete AR rifles starting at just $379.90. With Bear Creek’s Spring Fling Sale you can get a complete upper for less than you might pay for a chambered/fitted barrel alone, or get a complete AR rifle for less than an upper might cost from another vendor. With this sale you can save 50% on complete AR rifles.
You can get a 5.56 NATO configuration, or the similar .223 Wylde variant. If you want a bigger cartridge for hunting, choose a 6.5 Grendel, .350 Legend, or .450 Bushmaster chambering. We like the 6.5 Grendel — it is very accurate, so it can do double duty for competition and small game hunting.
Bear Creek Arsenal explains: “There are huge savings. For example you can get a complete 18″ barrel 6.5 Grendel AR for just $399.99, discounted from $799.99. Or get a .223 Wylde or 6.5 Grendel upper for just $179.99. With no purchase limits get as many as you want and check out the incredible savings on these AR rifles, AR pistols, and Uppers while they last.”
Bear Creek Arsenal Spring Fling Sale Uppers and AR Rifles
Here are examples of the products on sale. NOTE: These are just six of 40 different uppers and firearms on sale now. CLICK HERE to see full sale list.
With spring soon changing to summer, we are in peak varmint season in many parts of the country. In an area with a high number of critters, a semi-auto varmint rifle is a good choice. You get quick follow-up shots, with reliable 20-rd and 30-rd magazines.
For this Saturday at the Movies Showcase we feature a variety of semi-auto, AR-platform rifles chambered for efficient, high-velocity varmint ammo. Cartridges include: .17 WSM, .17 Remington, .20 Practical, .204 Ruger, .22 Grendel, .223 Rem, and 6mm ARC. We conclude with a video that reviews a variety of lead-free .223 Rem ammo types.
Rock Chuck Hunting in Eastern Oregon
This video has some great backcountry footage. The host nails a number of rockchucks with his .223 Rem-chambered AR-15. The shooter says that the default AR-15 cartridge works great for varmints: “The .223 Remington becomes a rockchuck hunter’s friend with the right load: Nosler 40gr Ballistic Tip loaded over a stuffed case of H335 powder. This achieves 3800 FPS with excellent accuracy.”
.17 Remington AR-15 — Small Bullet, Ultra-High Velocity
The .17 Remington wildcat is based on the .223 Remington case necked down to .172″, with the shoulder moved back. High muzzle velocity (4000+ FPS), flat trajectory, and very low recoil are the .17 Remington’s primary attributes. It has a maximum effective range of about 440 yards on prairie dog-sized animals, but the low BCs of the small .17-cal bullets makes them quite susceptible to crosswinds at such distances.
This Varminter.com video was created in spring 2022, just in time for Rockchuck and Thermal Coyote hunts. The host noted: “This was my first experience with the .17 Remington, but I was not unaware of its history and steady popularity among varmint and predator hunters. Although finding an available and affordable .17 Remington bolt-action rifle is nearly impossible nowadays, building one in an AR-15 was simple and straight-forward.” The video has full description of all the components for the build. The .17 Rem is fast — the 25gr bullet runs 3777 FPS from an 18″ barrel (see 01:42 time-mark). READ Full Story.
.17 WSM Rimfire in Franklin Armory F17-L
What’s the ultimate rimfire varmint rifle? An AR chambered for the .17 WSM could be the answer. Eric Mayer of Varminter.com states: “The Franklin Armory F17-L in .17 Winchester Super Magnum (WSM) has a lot of firsts. It is the first semi-automatic rifle in .17 WSM now available to the general public. It is the first gas-piston system, AR-15 rimfire rifle built in partnership between Franklin Armory and Osprey Defense.”
Eric has used the .17 WSM AR shooting ground squirrels, rock squirrels, prairie dogs, and rabbits. Eric notes: “The report of the .17 WSM is nowhere near as loud as most of the centerfire [varmint] cartridges. I found that when I shot the FA-17, it did not cause the other ground squirrels… to run for cover. The lack of recoil … allowed me to see right where I hit [and] if I happened to miss, [low recoil] made for quick corrections for wind, or distance.” READ Full Report
The .17 WSM is a much larger, more powerful round than the .17 HMR. See the size difference above.
Eric Mayer created his own custom .17 WSM AR-15 varmint rifle, built with a Franklin Armory F17-V4 Upper, Aero Precision Lower, and Magpul stock. This was used in California and Arizona. READ Full Story.
.20 Practical — Fast, Accurate, Easy to Form
The .20 Practical cartridge is simply a .223 Rem necked down to .20 caliber. This is a great choice for prairie dogs — and probably our favorite wildcat for the AR-15. Just neck down your .223 Rem brass, fit a .20-Cal barrel and you’re good to go. Robert Whitley notes the the .20 Practical “is a perfect cartridge for varmint hunting and general shooting — very accurate and fast! It functions 100% out of an AR-15.”
The .20 Practical offers some notable advantages for high-volume varmint shooters. The .20 Practical delivers very high velocity with very low recoil while still providing outstanding accuracy. The .20 Practical is great option for folks who favor “fast and light” — smaller, lower-mass bullets traveling at very high velocities. This little cartridge can launch 40-grainers at over 3900 FPS, and 32-grainers even faster. This makes the .20 Practical a great choice for an AR-based varmint rifle.
.20 Practical Ultimate AR Varminter
A decade ago AccurateShooter.com created a .20 Practical AR15 Ultimate Varminter with a custom 20-caliber upper from Robert Whitley of AR-X Enterprises, LLC. That project rifle was ultra-accurate — every 5-shot group out of the gun was less than the size of a dime. That gun was auctioned off, but Robert Whitley continues to produce custom 20 Practical AR-15 uppers.
You make .20 Practical cases by simply necking down .223 Rem brass to .20 caliber. You can start with standard .223 Rem brass and even load with standard .223 Rem dies. Just swap in a smaller expander and use smaller neck bushings.
Prairie Dog Hunt with .204 Ruger AR — Watch The P-Dogs Fly
The video was created during a 2018 prairie dog safari. It has stunning footage of hits on P-Dogs at multiple distances. You can see over FIFTY hits with some amazing P-Dog aerials. Watch the first flyin’ dog at 00:20 time-mark and there’s a truly spectacular gut-busting hit at 3:13. That shows the potency of a high-speed .20-cal projectile. The shooter was using a custom-built AR-15 chambered in a .204 Ruger. That cartridge was driving 35gr Berger hollow point bullets at a stunning 4050 FPS! The rifle was fitted with a Dakota silencer suppressor and many other custom components. If you’ve never tried prairie dog hunting, watch this video start to finish and you may be hooked.
6mm ARC AR-15 Varmint Rig
This Varminter.com video examines the 6mm ARC cartridge from a varmint hunter’s perspective. Created by Hornady, the 6mm ARC was designed for target shooting and medium-sized game both in bolt guns and Modern Sporting Rifles. Hornady states: “The 6mm ARC … fits in an AR-15-pattern action, functions reliably out of standard-capacity 24- or 17-round magazines. It delivers substantially better ballistics than the .223 Rem[.]” This video examines how the 6mm ARC performs in an AR-15 for varmint and predator hunting. The host reviews available factory varmint loads. The video also examines reloading components for the 6mm ARC — brass and bullets. CLICK HERE for full article.
Cottontail Rabbit Hunting with Suppressed .204 Ruger AR-15
As a varmint hunting tool, the .204 Ruger in an AR-15 is a versatile, worthy cartridge/rifle combo for the job. This video covers a cottontail rabbit hunt. The host states that “We were contacted by a farmer who was being slammed with cottontail rabbits eating out huge portions of his alfalfa fields.” This suppressed .204 Ruger AR-15 proved seriously effective on the rabbits, driving high-velocity rounds with impressive accuracy. See more details on the Varminter.com website.
The .22 Grendel is an extremely accurate and efficient cartridge based on the 6.5 Grendel necked down to .22 caliber. The case can drive 55gr varmint bullets at high velocities — over 3500 FPS. With a faster-twist barrel you can load up to 90gr bullets at 2500 FPS. The tester achieved velocities close to a 22-250. The short, fat case fits in AR-15 magazines, but may not feed as reliably during rapid fire. The tester did experience one double-feed.
Lead-Free Ammo Offerings Tested in .223 Rem AR-15
Some states — such as California — prohibit hunting with bullets that contain lead. If you plan to hunt in an area with such restrictions, you’ll need to find a lead-free substitute. Thankfully a number of manufacturers produce ammo with solid brass projectiles or other lead-free bullet designs. This Varminter.com video reviews .223 Remington no-lead ammunition from Cor-Bon, Hornady, Nosler and Winchester. These ammo types were tested in a AR-15 varmint rifle, used in a coyote hunt featured at the end of the video. SEE Full Story on Varminter.com.
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.20 Practical Ultimate AR Varminter
