Let’s face it, AR-platform rifles run dirty, at least compared to typical bolt-action rifles. The AR-15 works by piping gas from the barrel back into the bolt carrier, causing the bolt to unlock and the carrier to move the bolt backward. The “exhaust gas” from the barrel contains soot and carbon. The carbon will form hard deposits on the bolt. In addition, the carbon can combine with lube on the bolt carrier to make a nasty, paste-like sludge. This can be particularly problematic when the black paste pollutes the ejector and extractor recess.
This Editor has inspected dozens of ARs over the years. Other than mag-related malfunctions, the most common cause of AR cycling problems I found was oily gunk in the extractor and ejector areas. Many AR owners overlook these critical areas. Look at an AR that hasn’t been cleaned properly and you’ll probably find black gunk (and small brass shavings) in the ejector and extractor recesses.
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 three videos that explain how to properly disassemble and clean AR-platform rifles. And then they cover the essential lubrication ARs need to run reliably.
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.
General AR-15 Maintenance and Lubrication
There are various schools of thought on AR lubrication. Some guys like to run “wet” with lots of CLP, while others choose to focus lubrication on the key spots that receive the most friction and wear, such as the contact point for the bolt carrier. We do advice check the ejector recess and extractor spring recess frequently as gunk can get in there, causing malfunctions. Here is a good video from Pew Pew Tactical — a 7-minute guide to cleaning and lubricating AR-platform rifles. This shows important details for both the upper and the lower.
How to Clean Your AR-15 Bolt Carrier Assembly
This video offers very specific advice on the bolt carrier group, which receives the dirty gas directly from the barrel. Be sure to check the extractor and ejector recesses. That’s where old lube, brass shavings, and carbon accumulate. Follow the directions in this video for lubrication, and don’t over-lubricate the bolt carrier — that will only capture more carbon.
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.
Berger’s James Fox won the 2023 California Regional High Power Service Rifle Championship shooting Berger factory ammunition and 80.5gr bullets. Fox had a Grand Aggregate score of 1282-48X. Notably, at the closer ranges, Fox shot Berger factory-loaded .223 Rem 77gr OTM ammunition in his AR-platform rifle. For the 600-yard targets, Fox shot ammo loaded with Berger 80.5gr Fullbore bullets. Fox noted: “The Berger 80.5 Grain Fullbore bullets are truly the ‘easy button’ for Service Rifle, because they seem to just shoot in any barrel I have[.]”
The 2023 California Regional Service Rifle High Power Championship was hosted by the Coalinga (CA) Rifle Club on April 1st and 2nd, 2023. With two days of shooting, Fox finished in first on Day One with a score of 792-33X, and first again on Day Two with a 490-15X. In High Power Service Rifle, competitors test their skill in four stages: 200yd Slow-fire Standing, 200yd Rapid-fire Sitting (or kneeling), 300yd Rapid Prone, and 600yd Slow-fire Prone.
With the vast amount of rain California has received in 2023, the Coalinga Range was lush and green. The shooting conditions were also quite good at this April match, with minimal mirage, and mostly consistent winds, making for fairly “easy” shooting and high scores. Competitor Greg Brown noted: “The weather conditions were very pleasant and the winds mild this year. This wind was not a factor for off-hand which helped everyone to generally good scores at the 200-yard line. The winds were somewhat swirly for 300-yard Rapid Fire stage both days and cost some points lost. Conditions for the 600-yard stage looked benign, but tricky enough to prevent any perfect scores, but several 199s were fired on Saturday.”
Archive photo from a past year. The Coalinga Range was far more green and lush in April 2023.
Berger Ammo and Bullets Used by James Fox
“The California Regional Service Rifle Championship was the start to my 2023 shooting season. It was 23 years since the last time I shot at the Coalinga Rifle Club, which both times have resulted in very favorable outcomes for me”, stated Fox. “The first time in 2000 I earned my last Leg Points to become a CMP Distinguished Rifleman, and this year winning the Championship for the first time. During the two-day Aggregate match, I found some early success in the Rapid-fire Sitting stage at 200 yards, where I shot a sub 1-MOA group using Berger’s .223 Remington 77gr OTM ammunition. And later in the day at 600 yards, I fired Berger 80.5gr Fullbore bullets as they held great elevation allowing me to keep rounds in the middle, despite the wind conditions. The Berger 80.5gr Fullbore bullets are truly the ‘easy button’ for Service Rifle, because they seem to just shoot in any barrel I have, with a wide range of powder charges, Vihtavuori N140 seemingly being the best.” Fox will compete next month at the CMP Eastern Games.
Abundant Grass After Much Rain Attracted Cattle to the Range
Greg Brown noted that there were some special challenges at this match — grazing cattle: “The Coalinga Range was at its most scenic this early April time with deep green hills and the grazing yearling steers getting fatter by the hour. Several times the cattle grazed too lose and the shooters turned cowboys had to wrangle them safely off the range.”
Each summer for the past 100 years, the nation’s top Service Rifle Teams have competed in National Trophy Infantry Team (NTIT) Match at Camp Perry, Ohio. In this match, known informally as the “Rattle Battle”, six-member teams shoot at 200, 300, 500 and 600 yards with time limits — 384 rounds total. To win this match, the six shooters must work like a finely-tuned machine. This is a popular match with spectators as there is plenty of action in a short time span.
The National Trophy Infantry Team Match (NTIT) was first fired in 1922. Only four civilian teams have ever won the prestigious Infantry Trophy that goes to the winner of this match. The first civilian team to win this honor (we are told) was the Massachusetts Team in 1929 followed by a Nebraska Civilian Team in 1930. Seventy-nine years later, in 2009, the California Grizzlies Junior Team won the Infantry Trophy.
The Infantry Trophy Team Match is a unique event where scoring is based on how many hits six-person teams, which begin the match with 384 rounds of ammunition, can score on banks of eight silhouette targets at distances of 600, 500, 300 and 200 yards during 50-second firing periods. The NTIT is sometimes called the “Rattle Battle” because it requires firing, moving to the next firing point with all gear in tow. The match emphasizes extremely fast, accurate fire and good communication among teammates. CLICK HERE for more information.
This video shows the winning 2011 NTIT team at Camp Perry. Six USAMU shooters started with a combined load of 384 rounds to be fired at 8 targets from 600 and 500 yards prone, then 300 yards seated, and finally 200 yards standing.
For the past two years (2021 and 2022) the USAMU-Greenwood Team has won the title with a 1431 score in 2021 and 1344 in 2021. The record team score for this match is 1466, set by the USAMU-Remily Team in 1996. For more information about this great team event, read Unraveling the Mystery of the Rattle Battle on the Shooting Sports USA website.
The National Trophy Infantry Team Match (NTIT) was first fired in 1922 and has been part of the the CMP’s annual National Rifle Matches at Camp Perry. The NTIT is called the “Rattle Battle” because it emphasizes extremely fast, accurate fire.
Our friend Grant U., who runs the Precision Shooting Journal on Facebook, says the NTIT is a special match, a real “crowd-pleaser: “The National Trophy Infantry Team Match (Rattle Battle)… was always one of my favorite team events. It takes a hell of a lot more planning, practice, and precision than one might expect. You get one shot at it and the entire team had better be running on all cylinders because there are no alibis. Each team of six shooters is allocated 384 rounds and when the teams fire at 600 and 500 yards, it sounds like a war.”
SFC Brandon Green, one of the nation’s finest marksmen, won the 2018 NRA High Power Rifle Championship at Camp Atterbury, Indiana.
PHOTOS courtesy U.S. Army Marksmanship Unit. U.S. Army photos by Michelle Lunato/released. See more on USAMU Facebook Page.
AR-platform rifles run dirty — very dirty. The gas system blows carbon and powder residues back into the action and into the bolt carrier group. That’s why you need to clean your ARs regularly, and you have to pay special attention to the nooks and crannies in the bolt and bolt carrer. The majority of AR failures we’ve witnessed have been from a combination of lube, carbon, and tiny brass shavings that collected in the ejector recess and the extractor spring recess. After that, plain carbon build-up on the bolt can be a gun-stopper too. And you need to keep the barrel extension clean too.
If you’re new to the (dirty) world of ARs, here are two helpful videos from the folks who make Froglube. That line of cleaners/lubes is pretty good stuff, though not our first choice for all AR lubrication and cleaning chores. But these videos do provide many helpful tips. They show the disassembly process and highlight the problem areas to which you must pay special attention.
How to Clean Your AR-15 Bolt Carrier Assembly
How to Clean Your AR-15 Lower Receiver Assembly
NOTE: Froglube also makes a video showing AR upper, chamber, and barrel cleaning. There are practices shown there that we do NOT recommend. Nor do we recommend Froglube products for bore cleaning. We think there are more effective cleaning products.
CMP Advanced Highpower Clinic Trainers: Dan Arnold, James Fox, Sara Rozanski, Brian Williams, Nick Till.
The Civilian Marksmanship Program’s (CMP) Advanced Highpower Clinic, held each year at the annual Camp Perry National Matches in Ohio, is a great place to learn shooting technique, wind reading, equipment optimization, and mental management. One participant sates “This clinic is an excellent opportunity for Highpower shooters who really want to advance to the national level in the sport. I learned more in two days than I have in 10 years!”
The Advanced Highpower Rifle Clinic is designed to improve participants’ shooting techniques and range skills. This could involve trying a different hand position, moving the sling up or down the arm, tightening jacket straps, or a myriad of other subtle changes. “Highpower is a game of points — gaining a point here and there means moving up a classification, winning your class, or winning an entire match,” said Dan Arnold, one of the instructors.
“While highpower hasn’t changed all that much over the years, we as shooters continually evolve,” Arnold explained. “We age, our bodies change, we buy a new glove or a sling – all these little changes mean that the process of firing a shot has to change too. Trying to use the same shot process that you’ve been using for years while ignoring all of the changes that have happened will result in score stagnation, at best. At worst, your scores will decrease.”
In the summer 2022 Clinic, during the classroom portion, instructors discussed wind reading methods, demonstrated shooting positions, explained how to adjust for uneven firing points and deal with high winds. The classroom sessions also covered mental management as well as rifle maintenance.
The CMP Advanced Highpower clinic included two days of live-fire practice.
For the first time, the clinic included two days of live-fire training on the range. Day Two was spent on the range with firing points at the 200-yard line. Each instructor was paired with two students. For 30 minutes, students could dry-fire, then live-fire 10 to 15 rounds while their instructor evaluated their standing positions and suggested changes.
Then, students worked on their sitting positions. After sighting shots, students fired two 5-shot groups — two shots followed by a magazine change and then three shots fired in 30 seconds. Once their two groups were fired, the students fired a standard 10-shot group in 60 seconds.
The clinic provides specialized training, including wind reading with spotting scopes.
Day Three found the students and their instructors at the 600-yard line for prone slow-fire. The instructor checked the the students’ shooting positions and gave them tips on reading the wind conditions. After firing was completed, the students set up their spotting scopes and watched the mirage and wind flags while instructors called out the changes in velocity and direction.
If you missed the 2022 Clinic, don’t worry. The 2023 Advanced Highpower Clinic will be held July 21-23, 2023. The course is open to those who have attended the Advanced Small Arms Firing School at least once and have an “Expert” classification. Participants must bring their own ammunition and equipment for the live-fire portion of the 2023 Clinic. The entry fee is $40.00 for adults and $20.00 for juniors. All participants will receive a Clinic t-shirt and certificate.
The NSSF is running a MSR Photo Contest for hunters. Submit a hunting photo with a semi-automatic modern sporting rifle (MSR) and you can win one of two valuable guided hunts — a Mississippi Deer Hunt or Louisiana Hog Hunt. Through its #LetsGoHunting with MSRs Photo Challenge, the NSSF encourages hunters to share memorable hunting experiences when using MSRs. There are many photo styles that can be submitted — selfies, trophy photos, group photos, and firearms in the field.
Enter by posting an Instagram hunt photo using an MSR, such as an AR-15 or AR-10. All valid entries must include a photo showing a MSR in use such as the AR-15, AR-10, carbine, and similar variants. Entries must be submitted no later than January 31, 2023. Winners will be selected by drawing. Photos are only eligible for this sweepstakes if they contain a modern sporting rifle and depict proper firearm safety. Please read the official Photo Challenge Rules for more information. It is easy to enter the contest:
1. Take a photo while hunting using a Modern Sporting Rifle (MSR)
2. Post the photo to Instagram including #LetsGoHunting in the caption.
Hunting with Modern Sporting Rifles
MSRs, today’s popular semi-automatic rifle designs, are used by more and more hunters. Modern Sporting Rifles are used for many different types of hunting, from varmint to big game. MSRs are chambered for a wide variety of calibers and cartridge types, from 20 Practical to .338 WSM. MSR’s ruggedness and versatility serve hunters well. And MSR modularity allows MSRs to be configured for various applications.
Tactical Life Night Shooter — #LetsGoHunting #nightshooter #hoghunter
NSSF thanks The Confluence Group for donating the prize hunts to help encourage hunters to participate in the MSR Hunting Photo Challenge. Learn more here.
For decades, Shooting USA has been a leading video resource for the shooting sports and hunting. This popular cable TV show covers shooting matches, and provides expert information on precision shooting, gun maintenance, optics, and defensive firearms use. Here are five interesting videos all worth watching. Learn about wind-reading, gun maintenance, and optics.
1. Reading the Wind — SGT Sherri Jo Gallagher of USAMU
Sergeant Sherri Jo Gallagher formerly of the U.S. Army Marksmanship Unit (USAMU) shows us how to read the wind in given conditions, and how to apply your wind assessment when aiming down-range. During her time with the USAMU, Sherri won the National High Power Championship, and was the first woman in history to earn the U.S. Army “Soldier of the Year” honors. Sherri comes from a legendary family of shooters — she was raised by Ace Marksman Mid Tompkins and mother Nancy Tompkins, the first female to win the NRA National High Power Championship.
2. Field-Stripping and Cleaning AR-Platform Rifles
Let’s face it — Black Rifles run dirty. On AR-platform rifles, the gas system blows carbon and powder residues back into the action and bolt carrier group. Accordingly, you need to clean ARs early and often, and you should fully disassemble the bolt carrier to access parts and recesses which accumulate greasy lube and hard carbon. This helpful video shows how to field-strip and clean AR-platform rifles. If you own an AR, this is definitely worth viewing. With over 2.7 million views, this is the second most-watched video on Shooting USA’s YouTube Channel.
2. MOA Defined — Jim Scoutten Explains Minute of Angle
Minute of Angle (MOA) — this is the most common measurement of group size, and hence rifle accuracy. You hear about shooters hoping to shoot 1 MOA or “half-MOA”, but many folks could not give you a precise definition. In fact MOA is an angular measurement that equates to one-sixtieth of one degree of Arc. In this video, host John Scoutten defines MOA. He then demonstrates how MOA translates to accuracy on target. He demonstrates one-half-MOA accuracy with a Les Baer Custom rifle. This company offers a three-shot, half-MOA guarantee for its rifles.
4. How to Adjust for Parallax
Most precision rifle scopes have parallax adjustment, typically a knob on the left side of the scope. but what exactly is “Parallax” and why do you need to adjust optics to ensure the parallax setting is optimal? In this Shooting USA video, John Paul of JP Rifles defines parallax and explains why you need to set parallax correctly for the distance to your target. The video then shows how to adjust parallax correctly, a process which should start with the scope’s ocular focus.
5. How to Mount a Riflescope
When mounting a scope you want to use quality rings, and ensure that the scope is leveled properly. In addition, you need to adjust the fore/aft position of the scope so that eye relief is correct. Ideal scope position may be different when shooting from the bench vs. shooting prone. In this Shooting USA video John Paul of JP Rifles reviews scope mounting basics.
Do you plan to use factory ammo in your hunting rifles? Perhaps you buy bulk centerfire ammo for your AR15s or varmint rifles. And you’ll certainly consider using factory ammo in all your rimfire guns. Then this book can definitely benefit you.
If you ever shoot factory ammo, you should consider getting Ammo & Ballistics 6. This resource lists over 2,600 different loads for 200+ cartridge types from .17 Mach 2 up to .700 Nitro Express, including the most popular centerfire and rimfire cartridges (both rifle and handgun). In this updated-for-2020 Sixth Edition, there are over 3,000 tables covering virtually every caliber and every load for all commercially-loaded hunting ammunition sold in the USA. Tables include velocity, energy, wind drift, bullet drop, and ballistic coefficients up to 1,000 yards.
Ammo & Ballistics 6 helps you select ammo for a hunt — quickly compare the velocity and knock-down power of various commercial ammo. This book can also help you choose a caliber/chambering for your next hunting rig.
Verified Book Purchaser Reviews
“Outstanding reference guide for shooters and ballistic enthusiasts alike. Has data on velocity, energy delivered, Taylor KO index, windage and elevation on numerous loadings for hundreds of [cartridge types]. Each cartridge has all dimensions labeled (i.e rim, case length, neck, etc.), and has an informative description of the cartridges history/relevance.” — S. Step, 2017
“Great heaps of data! This volume has pages and pages of new data for .22 LR like the hot Velocitor, and also on the .22 WMR from 30 grains up into the 50s. Most importantly there is lots of range data, drop, windage, kinetic energy, etc. — Terrific reference guide….” — E. Svanoe
Ammo & Ballistics 6 contains data and illustrations on virtually every sporting cartridge sold in the USA. This latest edition covers 200-plus cartridge types from .17 Mach 2 up to .700 Nitro Express.
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
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