Lyman’s popular E-Zee Case Length Gauge II is now bigger and better. The latest version of Lyman’s Case Gauge is much larger than the original version. The Case Gauge II now measures more than 70 cartridge types — way more than before. This tool is a metal template with SAAMI-max-length slots for various cartridge types, including modern cartridges such as the Winchester Short Magnums. This tool allows you to quickly sort brass or check the dimensions. If you have a bucketful of mixed pistol brass this can save you hours of tedious work with calipers. You can also quickly check case lengths to see if it’s time to trim your fired brass.

If you load a wide variety of calibers, or do a lot of pistol shooting, we think you should pick up one of these Lyman Case Gauge templates. They are currently available for $24.99 at Brownells, $26.99 at MidwayUSA, and $34.68 on Amazon. The E-Zee Case Gauge has long been a popular item for hand-loaders.

NOTE: For years the E-Zee Case Gauge had a silver finish with black lettering, as shown above. Some of the most recent production of E-Zee gauges have a new “high contrast” look, with white lettering on a black frame. You may get either version when you order online — Brownells and MidwayUSA show silver, while Amazon shows black. We actually prefer the older silver version. Below is the black and white variant.

Lyman Case Gauge Should Last a Lifetime Easily measure the case length of over 70 popular rifle and pistol cases with Lyman’s E-Zee Case Length Gauge II. This really is a “must-have” piece of kit for any gun owner who hand-loads numerous pistol and rifle calibers. This precisely-made metal gauge makes sorting or identifying cases fast and accurate. The template is machined with SAAMI max recommended case lengths. Made from metal, with no moving parts, the E-Zee Case Gauge should last a lifetime. The Lyman E-Zee Gauges offered by Brownells are silver with black lettering, while other Case Gauge models are black with white lettering.

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 from 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. Full Detailed AR Cleaning and Maintenance Guide — Brownells

Want to know the right way to clean and maintain your AR-15? This Brownells video first covers a basic quick field cleaning. Then, over the course of another hour and a half, this very comprehensive video covers ALL recommended maintenance procedures for every major component of AR rifles.

Starting with a simple field strip, Caleb from Brownells explains how to clean the upper receiver, barrel, chamber, lower receiver, bolt carrier group, and buffer system while also demonstrating several specialty maintenance tools. He also discusses common wear items, when to replace springs and small parts, how to inspect critical components. The video also covers proper AR-15 lubrication products and methods.

2. 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.

3. 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.

4. 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.

5. 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.

6. 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 $29.99 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:

Readers often ask “What’s the difference between a Weaver scope rail and a Picatinny Rail?” The answer is not as simple as it seems. The dimensions of a Picatinny Rail should be consistent (from one rail-maker to another), since there IS a government spec. Conversely, there is some variance in “Weaver-style” rails. The width of the groove is the most important difference between Picatinny Rails and Weaver-type rails. “Mil-spec” Picatinny rails will have a grove width of 0.206″ while Weaver rails typically have a narrower, 0.180″ groove width.

Does your rifle have a Weaver Rail or Picatinny Rail? Check the dimensions to be sure.

A while back, Brownells had a helpful GunTech™ Article that discussed the Picatinny Rail vs. Weaver Rail. That article explained:

What are the differences between the ‘Picatinny’ and the ‘Weaver’ systems? The profile of the two systems is virtually identical. Depending on the quality of the machining done by the manufacturer, the two systems should be indistinguishable from the profile. The key difference lies in the placement of the recoil grooves and with width of the grooves. MIL-STD-1913 (Picatinny) grooves are .206″ wide and have a center-to-center width of .394”. The placement of these grooves has to be consistent in order for it to be a true Picatinny MIL-STD system. Weaver systems have a .180” width of recoil groove and are not necessarily consistent in a center-to-center measurement from one groove to the next.

In many instances, a Weaver system has a specific application that it is machined for, so interchangeability is not necessarily an issue. A MIL-STD-1913 system must adhere to the specifications listed above in order for it to be considered MIL-STD, since the military desires uniformity in the recoil grooves to allow for different systems to be mounted on the weapon with no concern for compatibility.

Now, what does this mean? Boiled down, it means that accessories designed for a Weaver system will, in most cases, fit on a Picatinny system. The reverse, however, is probably not the case. Due to the larger recoil groove, Picatinny accessories will not fit a Weaver system. There are, of course, exceptions to every rule, but for a good rule-of-thumb, [full-width] Picatinny won’t fit Weaver, but Weaver accessories WILL fit Picatinny.

Good news for suppressor fans. On Friday 10/9/2026, the Federal Bureau of Alcohol, Tobacco, and Firearms (ATF) issued an important new official policy statement that confirms the elimination of federal fees and most paperwork when acquiring a suppressor. The 10/9 ATF statement also covers other NFA items including short-barreled rifles and short-barreled shotguns.

For additional details, review the official ATF Guidance Instructions and FAQ.

Here is the News Release from the ATF:
The Bureau of Alcohol, Tobacco, Firearms and Explosives today released an Open Letter and Frequently Asked Questions explaining how it will treat ownership, transfer, and transportation of the National Firearms Act firearms for which Congress eliminated the making and transfer taxes in the One Big Beautiful Bill.

The guidance follows an announcement by Attorney General Todd Blanche that the Department of Justice will not appeal an August decision made by the U.S. District Court for the Northern District of Texas, which held that certain provisions of the NFA were unenforceable. In that decision, the court enjoined enforcement of those NFA provisions only for the plaintiffs in the suit; however, using the Department’s enforcement discretion, the Attorney General … made the policy decision to apply the guidance to everyone, and not only to those covered by the injunction in Silencer Shop Foundation v. ATF[.]

Under ATF’s guidance, ATF will not enforce the requirements for individuals to apply and receive ATF approval before making or transferring short-barreled rifles, short-barreled shotguns, suppressors (silencers), and certain other concealable firearms known in the law as “any other weapons.” ATF also will not enforce the NFA’s registration, tax-stamp or related requirements for those covered items. The $200 tax remains in place for machine guns and destructive devices[.]

The guidance does not supersede state and local laws that restrict NFA firearms. Because many state laws require individuals to register NFA firearms, ATF will continue to process NFA applications that are submitted. The guidance also does not affect the Gun Control Act’s requirement to obtain ATF approval before transporting short-barreled rifles and short-barreled shotguns in interstate commerce.

Suppressor Purchasing under New ATF Policies (Brownells)

Image from Brownells Suppressor INFO page.

Based on the ATF “Guidance” letter issued 10/9/2026, Brownells has released a helpful summary of factors to consider when purchasing a suppressor.

Understanding the New ATF Suppressor and NFA Policies
Under the new ATF guidance, ATF will no longer enforce federal NFA approval and registration requirements before making or transferring certain NFA items, including suppressors, short-barreled rifles (SBRs), short-barreled shotguns (SBSs), and certain other regulated items.

For eligible purchases through an FFL, standard federal firearm transaction requirements still apply, including completing a Form 4473 and, unless exempt, passing a NICS background check. Additional requirements may apply to certain firearm types.

State and Local Laws Still Apply
These changes do not apply the same way in every state. State and local laws may restrict or prohibit certain items or require additional registration, documentation, or transfer procedures. Before making a purchase, customers should review their current state and local laws and regulations to understand what is legal and what requirements apply where they live.

Important Things to Know
— State and local laws are NOT superseded by this ATF guidance.
— Availability and transfer requirements vary by location.
— Federal, state, and local eligibility requirements still apply.
— Some transactions may require additional documentation.
— Customers may still voluntarily use applicable NFA forms and registration processes.
— The federal nonenforcement policy could change, and unregistered items are not guaranteed to be grandfathered if enforcement resumes.

Suppressor Purchases by State
The following classifications outline general suppressor purchasing requirements under the current guidance and applicable state laws. Requirements may change and should be confirmed before purchase.

Open States (27) — No NFA Process Required
Alabama, Arizona, Arkansas, Florida, Idaho, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maine, Maryland, Minnesota, Missouri, Nebraska, New Hampshire, New Mexico, Oklahoma, South Carolina, South Dakota, Tennessee, Texas, Utah, Vermont, Virginia, West Virginia, and Wyoming. In these states, eligible customers can generally purchase a suppressor through the standard firearm transfer process, using applicable background checks and eligibility requirements, without completing an NFA Form 4.

NFA States (15) — Form 4 Still Applies
Alaska, Colorado, Connecticut, Georgia, Michigan, Mississippi, Montana, Nevada, North Carolina, North Dakota, Ohio, Oregon, Pennsylvania, Washington, and Wisconsin. These states retain legal requirements tied to federal NFA registration or compliance. Customers should expect to complete the traditional Form 4 process where required under applicable state law.

Banned (8 States + Washington, D.C.)
California, Delaware, Hawaii, Illinois, Massachusetts, New Jersey, New York, and Rhode Island, plus Washington, D.C. — Suppressors remain generally prohibited for civilian ownership in these locations, subject to limited legal exceptions.

You can never be too safe when hand-loading your own ammunition. This article outlines the Seven Fundamental Reloading Safety Tips, as explained by Brownells. This is important information for novice hand-loaders and a good refresher for those with reloading experience! The Ulimate Reloader video below has some specific tips on loading hunting ammo, as it’s now hunting season throughout much of the nation.

Summary of the Seven Safety Tips:

1. Do NOT mix powders. Keep your powders clearly marked and dated. You can use masking tape to write the date on the container.

7. If reloading military brass, be aware that case capacity is usually reduced, and initial loads should be at least 10-15% lower than published data.

Here are some other tips that will help your avoid making costly mistakes (such as using the wrong powder, or undercharging a case):

A while back, Sinclair International’s Reloading Press Blog featured a “round-table” discussion of reloading techniques. Sinclair’s team of tech staffers were asked: “What do you feel is the one-most crucial step in precision reloading?”

Here are their responses (along with comments from our Editors):

Phil Hoham: “I feel that when working up a load do not go too high or too low in your powder charge. Stay away from ‘suggested loads’ you hear at the range, or on the internet. Always be sure to use a published reloading manual that presents not only minimums and maximums, but also pressure, velocity, and a proper range of powders used. Do not get distracted in the reloading process, and remain focused at all times during each step involved.”

AccurateShooter.com: Some loads presented on the Internet are OK as a starting point, but it is absolutely critical to understand that pressure maximums will vary considerably from one rifle to another (of the same chambering). For example, one 6mmBR rifle shooting 105gr bullets can max out with 30.0 grains of Varget powder, while another rifle, with the same chamber dimensions, but a different barrel, could tolerate (and perform better) with half a grain more powder. You need to adjust recommended loads to your particular rifle and barrel.

Pete Petros: “This could be a very broad topic, but if I were to pick one, it would be making sure to pay close attention, and weigh each and every powder charge to ensure that each load is exact and consistent. This is important not only for accuracy, but also for safety reasons.”

AccurateShooter.com: If you’re shooting beyond 200 yards, it is critical to weigh your loads with an accurate scale or automated system such as the AutoTrickler V3/V4. Loads that are uniform (within a few kernels) will exhibit lower Extreme Spread and Standard Deviation. And remember, even if you stick with the same powder, when you get a new powder lot, you may have to adjust your load quite a bit. For example, .308 Palma shooters have learned they may need to adjust Varget loads by up to a full grain from one lot of Varget to the next.

Ron Dague: “I feel that the most important step(s) in reloading for accuracy are in the initial case prep. Uniforming the primer pocket to the same depth to ensure consistency in primer seating is a crucial step. Additionally de-burring the flash holes, each in the same way to clean up and chamfer the inside is important. It ensures that the ignition from the primer is uniform and flows out in the same consistent pattern. Doing so will create uniform powder ignition and tighten up your velocity Extreme Spread.”

AccurateShooter.com: With some brands of brass, primer pocket uniforming and flash-hole deburring is useful. However, with the best Lapua, Norma, and RWS brass it may be unnecessary, or worse, counter-productive. So long as your Lapua brass flash-holes are not obstructed or smaller than spec, it may be best to leave them alone. This is particularly true with the small flash holes in 220 Russian, 6BR, and 6.5×47 cases. MOST of the flash-hole reaming tools on the market have cutting bits that vary in size because of manufacturing tolerances. We’ve found tools with an advertised diameter of .0625″ (1/16″) that actually cut an 0.068″ hole. In addition, we are wary of flash-hole deburring tools that cut an aggressive inside chamfer on the flash-holes. The reason is that it is very difficult to control the amount of chamfer precisely, even with tools that have a depth stop.

Rod Green: “I feel that bullet seating is the most important step. If you had focused on making sure all prior steps (case prep, powder charge, etc.) of the process have been carefully taken to ensure uniformity, bullet seating is the last step, and can mean all the difference in the world in terms of consistency. Making sure that the bullet is seated to the same depth each time, and time is taken to ensure that true aligned seating can make the load.”

Bob Blaine: “I agree with Rod. I strongly feel that consistent bullet seating depth is the most important step in creating the most accurate hand loads. I have seen the results in both my bench and long range rifles. Taking the time to ensure exactness in the seating process is by far, the number one most important step in my book.”

AccurateShooter.com: Agreed. When loading match ammo, after bullet seating, we check every loaded round for base of case to ogive length. If it varies by more than 3 thousandths, that round is segregated or we attempt to re-seat the bullet. We measure base of case to bullet ogive with a comparator mounted on one jaw of our calipers. You may have to pre-sort your bullets to hold the case-base to ogive measurement (of loaded rounds) within .003″.

Many Remington 700 rifle owners swap out the factory trigger. This is not a difficult task, but you need to follow the proper procedure so you don’t damage any important parts during installation, and so that you don’t interfere with the operation of the bolt and safety. This Do-It-Yourself video from Brownells explains and demonstrates, step by step, how to safely and correctly replace your Remington 700 trigger. This installation video covers the common methods used to install most of the popular after-market Rem 700 triggers. Importantly, the video also shows how to function test after installation, and how to make sure your safety is working properly.

Many Rem 700 owners fit Timney triggers to their rifles.

Lyman’s popular E-Zee Case Length Gauge II is now bigger and better. The latest version of Lyman’s Case Gauge is much larger than the original version. The Case Gauge II now measures more than 70 cartridge types — way more than before. This tool is a metal template with SAAMI-max-length slots for various cartridge types, including modern cartridges such as the Winchester Short Magnums. This tool allows you to quickly sort brass or check the dimensions. If you have a bucketful of mixed pistol brass this can save you hours of tedious work with calipers. You can also quickly check case lengths to see if it’s time to trim your fired brass.

If you load a wide variety of calibers, or do a lot of pistol shooting, we think you should pick up one of these Lyman Case Gauge templates. They are currently available for $24.99 at Brownells, $25.99 at MidwayUSA, and $30.53 on Amazon. The E-Zee Case Gauge has long been a popular item for hand-loaders.

NOTE: For years the E-Zee Case Gauge had a silver finish with black lettering, as shown above. Some of the most recent production of E-Zee gauges have a new “high contrast” look, with white lettering on a black frame. You may get either version when you order online — Brownells and MidwayUSA show silver, while Amazon shows black. We actually prefer the older silver version. Below is the black and white variant.

Lyman Case Gauge Should Last a Lifetime Easily measure the case length of over 70 popular rifle and pistol cases with Lyman’s E-Zee Case Length Gauge. This really is a “must-have” piece of kit for any gun owner who hand-loads numerous pistol and rifle calibers. This precisely-made metal gauge makes sorting or identifying cases fast and accurate. The template is machined with SAAMI max recommended case lengths. Made from metal, with no moving parts, the E-Zee Case Gauge should last a lifetime. The Lyman E-Zee Gauges offered by Brownells are silver with black lettering, while other Case Gauge models are black with white lettering.

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 from 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 $29.99 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:

You can never be too safe when hand-loading your own ammunition. This article outlines the Seven Fundamental Reloading Safety Tips, as explained by Brownells. This is important information for novice hand-loaders and a good refresher for those with reloading experience! The Ulimate Reloader video below has some specific tips on loading hunting ammo, as it’s now hunting season throughout much of the nation.

Summary of the Seven Safety Tips:

1. Do NOT mix powders. Keep your powders clearly marked and dated. You can use masking tape to write the date on the container.

7. If reloading military brass, be aware that case capacity is usually reduced, and initial loads should be at least 10-15% lower than published data.

Here are some other tips that will help your avoid making costly mistakes (such as using the wrong powder, or undercharging a case):