This popular video, viewed 3.9 million times on YouTube, provides a clear explanation of Minute of Angle (MOA) and how that angular measurement is used. Among novice shooters, there is much confusion over this term. In this NSSF Video, Ryan Cleckner, a former U.S. Army Sniper Instructor, defines the term “Minute of Angle” (MOA) and explains how you can adjust for windage and elevation using 1/4 or 1/8 MOA clicks on your scope. This allows you to sight-in precisely and compensate for bullet drop at various distances.

For starters, Ryan explains that, when talking about angular degrees, a “minute” is simply 1/60th. So a “Minute of Angle” is simply 1/60th of one degree of a central angle, measured either up and down (for elevation) or side to side (for windage). At 100 yards, 1 MOA equals 1.047″ on the target. This is often rounded to one inch for simplicity. Say, for example, you click up 1 MOA. That is roughly 1 inch at 100 yards, or roughly 4 inches at 400 yards, since the target area measured by 1 MOA increases in linear fashion with the distance.

More Minute of Angle (MOA) Explanatory Videos

This Gunwerks video explains that Minute of Angle subtends approximately 1″ for each 100 yards (well, 1.047″ to be more precise). That means a Minute of Angle increases in actual measured size the greater the distance of the target from the shooter.

This lengthy (24-minute) video defines Minute of Angle, and uses multiple diagrams to illustrate how MOA angular measurements works. The video also how MOA-based click values translate to point-of-impact changes at various distances.

In this video, former Army Ranger sniper team leader Ryan Cleckner explains how proper head and scope position is a critical component to accurate shooting. Ryan finds that some shooters place the scope too far forward or too far rearward. If the scope is too far back you may have issues with eye relief and stock reach to shoulder. If it is too far forward, you may have cheek-weld problems or get neck strain. Cleckner cautions: “When you are in a good prone position, you don’t want any strain in your neck muscles or back.”

In the video, Cleckner offers a simple method to check your scope position:

“To see if your scope is set up properly … close your eyes, lay your head on your gun, get completely comfortable, and only when you are set-up, then open your eyes. If you can’t see clearly through your scope, CHANGE something [such as comb height or scope position]”.

“When you open your eyes, if you see some scope shadow [i.e. the black ring around the edge of the scope picture], figure out which way you need to move your head to get rid of that shadow, and then make adjustments to either your position, the rifle, or the scope.”

“Very often you’ll open your eyes and realize you need to move further back or further forward. Instead of moving your position [or head], move the scope and get it set up properly.”

Tip on Viewing Your Reticle:
Cleckner: “Sometimes it can be difficult to focus between the target and the reticle, even with the parallax adjusted properly. I recommend you focus only on the reticle. Just like the front sight on a rifle or a handgun, that reticle is what you can control, and it’s what matters. Focus on a crisp, clear reticle, in a stable platform, and all that’s left is trigger control.”

Long Range Shooting Handbook — A Good Resource
Cleckner’s Long Range Shooting Handbook covers a wide range of topics important for precision marksmanship — both shooting skills and technical matters. You can view Sample Chapters from Ryan’s Book on Amazon.com. Cleckner’s book is designed as an intro to key concepts such as MOA vs. Mils, External Ballistics, and Environmental Effects. Included are personal tips and advice based on Cleckner’s years of experience as a sniper instructor and special operations sniper.

The Long Range Shooting Handbook is divided into three main categories: What It Is/How It Works, Fundamentals, and How to Use It. “What It Is/How It Works” covers equipment, terminology, and basic principles. “Fundamentals” covers the theory of long range shooting. “How to Use It” gives practical advice on implementing what you’ve learned, so you can progress as a skilled, long range shooter.

Ryan Cleckner was a special operations sniper (1/75 RGR) and he served as a U.S. Army sniper instructor. Currently he works as a firearms industry executive and practicing firearms attorney.

You have probably watched one of the excellent shooting sports videos Ryan Cleckner has done for the NSSF. Ryan’s Understanding Minute of Angle (MOA) video (see below) has been viewed over 3.8 million times! Ryan, a former sniper instructor Ryan who is now an attorney, is noted for his ability to explain complex topics in an easy-to-comprehend manner.

Cleckner has also authored a great book, the Long Range Shooting Handbook, which expands on the topics covered in his popular video series. This book is the #1 Best Seller on Amazon in its category. You can view Sample Chapters from Ryan’s book — just click “Read Sample” on the Amazon product page.

As a long-range shooting expert, Ryan Cleckner has impressive credentials. Cleckner was a special operations sniper (1/75 Rgr) with multiple combat deployments, and he has served a U.S. Army sniper instructor. Currently he works as a firearms industry executive and attorney.

The Long Range Shooting Handbook is divided into three main categories: What It Is/How It Works, Fundamentals, and How to Use It. “What It Is/How It Works” covers equipment, terminology, and basic principles. “Fundamentals” covers the theory of long range shooting. “How to Use It” gives practical advice on implementing what you’ve learned, so you can progress as a skilled, long range shooter.

Ryan Cleckner’s best-selling Long Range Shooting Handbook is designed as an introduction to important fundamental concepts such as MOA vs. MILs, External Ballistics, and Environmental Effects. Included are personal tips and advice based on Cleckner’s years of experience as a sniper instructor.

Iain Harrison, editor of Recoil Magazine, said: “Whether you’re looking to dip a toe into the complex world of long range shooting, or you’re a seasoned shooter with years of trigger time, Ryan Cleckner’s book will prove to be excellent reference material. Well written and easy to understand, it covers all the essential topics that a well-rounded shooter needs to master.”

In this video, Ryan Cleckner reviews proper technique for rifle shooters. A stable platform, sight alignment, sight picture, and trigger control are key fundamentals to shooting properly.

Hunting season is right around the corner. That means its time to inspect all your hunting gear, including your scope set-up. If you have a new optic, you’ll want to get it mounted correctly on your current rig. And if you have a new hunting rifle, you’ll need to mount the properly rings and install the riflescope so that you have the correct eye relief.

A proper scope installation involves more than just tensioning a set of rings — you need to consider the proper eye relief and head position, and it should be leveled correctly. This video shows a simple, quick method to mount a scope. The method assumes that the reticle (cross-hairs) are square without the turret. You’ll want to confirm that with a plumb line hanging straight down, a procedure you can do indoors.

In this NSSF video, Ryan Cleckner shows how to set up a scope on a hunting or tactical rifle. Ryan, a former U.S. Army Sniper Instructor, notes that many hunters spend a small fortune on equipment, but fail to set up their rifle to use the optics optimally. Cleckner likens this to someone who owns an expensive sports car, but never adjusts the seat or the mirrors.

Ryan notes that you want your head and neck to be able to rest naturally on the stock, without straining. You head should rest comfortably on the stock. If you have to consciously lift your head off the stock to see through the scope, then your set-up isn’t correct. Likewise, You shouldn’t have to push your head forward or pull it back to see a clear image through the scope. If you need to strain forward or pull back to get correct eye relief, then the scope’s fore/aft position in the rings needs to be altered. Watch the full video for more tips.

Tips on Mounting Your Scope and Adjusting Your Comb Height:
1. Normally, you want your scope mounted as low as possible, while allowing sufficient clearance for the front objective. (NOTE: Benchrest shooters may prefer a high mount for a variety of reasons.)

2. Once the scope height is set, you need to get your head to the correct level. This may require adding an accessory cheekpad, or raising the comb height if your rifle has an adjustable cheekpiece.

3. Start with the rifle in the position you use most often (standing, kneeling, or prone). If you shoot mostly prone, you need to get down on the ground. Close your eyes, and let you head rest naturally on the stock. Then open your eyes, and see if you are too low or too high. You may need to use a cheekpad to get your head higher on the stock.

4. If your scope has a flat on the bottom of the turret housing, this will help you level your scope. Just find a flat piece of metal that slides easily between the bottom of the scope and the rail. Slide that metal piece under the scope and then tilt it up so the flat on the bottom of the scope aligns parallel with the flats on the rail. Watch the video at 8:40 to see how this is done.

Are you looking to get started in PRS and NRL practical precision rifle competition? Or perhaps you’d like to advance your skill set so you can place higher in big matches (and get your hands on those prize table items)? Of course there is no substitute for trigger time in the field, but there ARE some great print resources. These four books can help you select the right equipment, improve your shooting skills, make better wind calls, increase your fitness, and develop a more efficient between-match training program.

1. Precision Rifle Marksmanship: The Fundamentals

Frank Galli, $21.13 Paperback, $20.07 Kindle

Frank Galli (aka “LowLight”) is the founder/head honcho of SnipersHide.com, the most active tactical community on the internet. Galli is also a retired USMC scout-sniper. Practical Precision Rifle shooting is one of the hottest trends in competitive shooting today. PRS and NRL matches draw big turn-outs and boast impressive prize tables. Galli’s Precision Rifle Marksmanship (#ad) book covers the fundamentals of precision marksmanship with easy-to-understand methodology. The book uses the same instruction process that Galli uses in his live marksmanship classes.

As Sniper’s Hide guru Frank Galli explains, there is no voodoo when it comes to precision rifle marksmanship, but there are techniques that, when practiced, make the difference between good marksmanship and great marksmanship. Understanding the reasons that a bullet hits or doesn’t hit its intended target at ultra-long distances is a crucial element to learning. Galli’s explanations of how to understand and compensate for wind speed and direction are excellent — great wind-reading advice.

Published in 2020, this 272-page well-illustrated book covers the latest equipment (scopes, LRFs, chassis systems, mags, bags, bipods, tripods) favored by tactical competitors in PRS/NRL type matches.

2. Long Range Shooting Handbook

Ryan Cleckner, $24.95 Paperback, $9.99 Kindle

Ryan Cleckner’s Long Range Shooting Handbook (#ad) is the best-selling modern book on practical rifle skills. A former U.S. Army sniper instructor, Cleckner is knowledgeable, and his text is well-organized and chock full of good information. You can view Sample Chapters on Amazon.com.

Ryan Cleckner’s highly-regarded Long Range Shooting Handbook is designed as an intro to important fundamental concepts such as MOA vs. Mils, External Ballistics, and Environmental Effects. Included are personal tips and advice based on Cleckner’s years of experience as a sniper instructor.

The Long Range Shooting Handbook is divided into three main categories: What It Is/How It Works, Fundamentals, and How to Use It. “What It Is/How It Works” covers equipment, terminology, and basic principles. “Fundamentals” covers the theory of long range shooting. “How to Use It” gives practical advice on implementing what you’ve learned, so you can progress as a skilled, long range shooter. This book will benefit any long-range shooter, not just PRS/NRL competitors.

3. IMPACT! — Training and Preparing for Precision Rifle Matches

Rodney Maze, $14.99 Paperback, $4.99 Kindle

Impact!, by PRS competitor Rodney Maze, is an entry/intermediate level guide to preparing yourself and your equipment to compete in precision rifle type matches. It will also benefit anyone looking to learn about practical-style long range and precision shooting. We recommend you check it out for yourself — there are 20 Pages of free sample content (#ad) on Amazon. Topics covered include:

— Rifle, optic, and equipment selection
— Setting up your rifle, bags, tripods for PRS/NRL matches
— Understanding ballistics and how to record and use ballistic data
— Techniques for using holdovers for multi-target stages
— Gun skills, rapid fire techniques, clearing malfunctions
— Shooting off of barricades, and specialty stages
— Effects of wind and how to improve your wind calls
— Tips for live fire and dry fire practice
— Preparing yourself and your equipment for a match
— Mental strategies and techniques

Impact! is illustrated with plenty of photographs. Topics are divided logically, and concepts are explained in clear language. Also included is an extensive glossary of terms used in precision shooting and a list of additional resources you can use to further pursue your precision shooting knowledge. This book also includes a handy Appendix with formatted pages for recording data about your rifle, scope, and ammunition. There is also a Wind table for recording your rifle “dope” and wind hold-offs. Lastly, Impact! has a useful table of unit conversions.

4. Practical Shooter’s Guide

Marcus Blanchard, $19.98 Paperback, $9.99 Kindle

Thinking of getting started in the Practical/Tactical shooting game? Looking for ways to be more stable when shooting from unconventional positions? Then you may want to read Marcus Blanchard’s Practical Shooter’s Guide (A How-To Approach for Unconventional Firing Positions and Training) (#ad). Unlike almost every “how to shoot” book on the market, Blanchard’s work focuses on the shooting skills and positions you need to succeed in PRS matches and similar tactical competitions. Blanchard provides clear advice on shooting from barricades, from roof-tops, from steep angles. Blanchard says you need to train for these types of challenges: “I believe the largest factor in the improvement of the average shooter isn’t necessarily the gear; it’s the way the shooter approaches obstacles and how they properly train for them.”

As an Amazon affiliate, this site can earn revenues through sales commissions.

Ryan Cleckner has created many good shooting videos for the NSSF, such as his excellent Understanding MOA Video. Ryan is noted for his ability to explain complex topics in an easy-to-comprehend manner. This video, covering the fundamentals of shooting, has been viewed over 1.6 million times. It’s worth watching, particularly for guys getting started in PRS/practical competitions.

In this video, Ryan Cleckner reviews proper technique for rifle shooters. A stable platform, sight alignment, sight picture, and trigger control are key fundamentals to shooting properly. This is basic stuff, but Cleckner presents it in a clear, logical fashion. This is a good video for novice shooters.

Tip on Viewing Your Reticle:
Cleckner: “Sometimes it can be difficult to focus between the target and the reticle, even with the parallax adjusted properly. I recommend you focus only on the reticle. Just like the front sight on a rifle or a handgun, that reticle is what you can control, and it’s what matters. Focus on a crisp, clear reticle, in a stable platform, and all that’s left is trigger control.”

Tip on Trigger Control:
Cleckner: “Trigger control is pretty straightforward, as long as you think about it as a continuous process, and not just one thing that happens. I like to think about it as drawing a line in the dirt. I like to think about this constant pressure that I’m adding as I draw this line straight back, and then… continuing to draw that line even as the rifle goes off. That’s the good follow-through you’ll need.”

Long Range Shooting Handbook — A Good Resource
Cleckner has authored a book, the Long Range Shooting Handbook, which expands on the topics covered in the above video. You can view Sample Chapters from Ryan’s Book on Amazon.com.

Ryan Cleckner’s LR Shooting Handbook is designed as an intro to important fundamental concepts such as MOA vs. Mils, External Ballistics, and Environmental Effects. Included are personal tips and advice based on Cleckner’s years of experience as a sniper instructor and special operations sniper.

The Long Range Shooting Handbook is divided into three main categories: What It Is/How It Works, Fundamentals, and How to Use It. “What It Is/How It Works” covers equipment, terminology, and basic principles. “Fundamentals” covers the theory of long range shooting. “How to Use It” gives practical advice on implementing what you’ve learned, so you can progress as a skilled, long range shooter.

As a long-range shooting expert, Ryan Cleckner has impressive credentials. Cleckner was a special operations sniper (1/75 RGR) with multiple combat deployments, and he has served a U.S. Army sniper instructor. Currently he works as a firearms industry executive and attorney.

Gun Storage Check Week is the time to ensure your firearms are stored safely and securely. NSSF, the Firearm Industry Trade Association, is promoting Gun Storage Check Week, June 1-7, 2025, to remind gun owners to review their storage practices to prevent accidents, suicides and thefts. During this week, check your gun safe(s), and ensure your firearms are stored correctly and locked down properly. Also use secure gun cases when transporting firearms to the range. When traveling by air, use proper TSA-approved gun cases and comply with transport rules.

“Securely storing guns when they’re not in use can save lives. It’s really that simple,” said Joe Bartozzi, President and CEO of NSSF. “No one wants their gun in the hands of an unsupervised child, a person in crisis, someone who does not understand how to safely operate firearms, or a thief. If something bad happens because your gun isn’t stored securely, you’ll regret it, probably forever.”

This video covers gun safety rules and secure storage of firearms.

Gun Storage Check Week’s safety resources highlight many options to store firearms securely so that guns are off limits to unauthorized persons. Secure gun storage devices include:

Cable Locks — Available free of charge through NSSF’s Project ChildSafe® program
Lock Boxes — Secure storage solution for guns kept for home security and in vehicles
Lockable Gun Cases — for security, portability, and travel
Full-size Gun Safes — For owners with multiple firearms to protect against fire and theft.

Enter to Win Product Prizes in June

Each week in June 2025, you can enter to win firearm storage units and other safety equipment thanks to Regal Products, Vault Pro, and ShotLock. Storage equipment prize packages are valued up to $499 and change weekly. Shown below is the first set of prizes. Go to GunStorageCheck.org to register. One winner per week will be chosen. The contest restarts each week, so you can enter up to four times in June.

This popular video, viewed 3.8 million times on YouTube, provides a clear explanation of Minute of Angle (MOA) and how that angular measurement is used. Among novice shooters, there is much confusion over this term. In this NSSF Video, Ryan Cleckner, a former Sniper Instructor for the 1st Ranger Battalion, defines the term, “Minute of Angle” (MOA) and explains how you can adjust for windage and elevation using 1/4 or 1/8 MOA clicks on your scope. This allows you to sight-in precisely and compensate for bullet drop at various distances.

For starters, Ryan explains that, when talking about angular degrees, a “minute” is simply 1/60th. So a “Minute of Angle” is simply 1/60th of one degree of a central angle, measured either up and down (for elevation) or side to side (for windage). At 100 yards, 1 MOA equals 1.047″ on the target. This is often rounded to one inch for simplicity. Say, for example, you click up 1 MOA. That is roughly 1 inch at 100 yards, or roughly 4 inches at 400 yards, since the target area measured by 1 MOA increases in linear fashion with the distance.

More Minute of Angle (MOA) Explanatory Videos

This Gunwerks video explains that Minute of Angle subtends approximately 1″ for each 100 yards (well, 1.047″ to be more precise). That means a Minute of Angle increases in actual measured size the greater the distance of the target from the shooter.

This lengthy (24-minute) video defines Minute of Angle, and uses multiple diagrams to illustrate how MOA angular measurements works. The video also how MOA-based click values translate to point-of-impact changes at various distances.

Rifle accuracy is pointless unless you can see your target and aim precisely. That’s why good optics are so important for precision shooting — from 50 yards out to a mile and beyond. Top quality scopes can be very expensive — you’ll see optics costing $3000 or more on many competition F-Class and PRS rifles. Today’s video showcase covers important “Riflescope Knowledge”, including how to adjust for parallax, and how to properly sight-in your scoped rifle. In addition there’s a helpful video defining Minute of Angle (MOA) plus videos showing how to mount optics correctly (and avoid common scope-mounting mistakes).

Rifle Sight-In Process — Start to Finish

Here Ryan Cleckner shares his process for sighting in a scoped rifle. This helpful video covers the full process: bore-sighting, 25-yard shot confirmation, shooting groups, making adjustments at 100 yards, and finding mechanical zero. Looking for more valuable rifle instruction? Then check out Ryan Cleckner’s book, Long Range Shooting Handbook.

How to Adjust for Parallax

Most precision rifle scopes have parallax adjustment, but what is it and why do you need to adjust it? 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 show how to adjust parallax correctly, a process which should start with the scope’s ocular focus.

Understanding Minute of Angle (MOA)

In this video, Ryan Cleckner explains the measurement term “minute of angle” (MOA) and how to use MOA adjustments on your scope to compensate for bullet drop at varying distances. MOA is an angular measurement, used often in long range shooting, that is 1/60th of one degree of a circle. One MOA represents 1.047″ at 100 yards and 10.47″ at 1000 yards. Want to learn more? Read Ryan Cleckner’s article Understand and Using Minute of Angle.

Scope Mounting: Common Scope-Mounting Mistakes To Avoid

Mounting a scope isn’t a super-complex or highly technical job, but there are ways you can mess it up. This Brownells video explains common pitfalls to avoid when you’re mounting a rifle scope.

1. Make sure the rings don’t touch any part of the turret housing, objective bell, or eyepiece. Any one or combination of those will throw off your shot groups big time. Make sure those rings are clamping ONLY the scope’s main tube.

2. Ensure that the scope rings are properly clamped to the scope base. If you can grasp the scope with one hand and the rifle with the other and there’s play between them, your groups are going to be all over the place! Scope rings come with torque specs for a reason.

3. Make sure there’s clearance between the objective bell and the rifle. No part of the scope should touch the rifle itself. The only nexus between the scope and the rifle should be the scope rings — and they’re not actually part of the rifle. This also applies to a removable lens cover. When it’s on the scope, it should not touch any part of the gun.

4. Don’t mount the scope too low on an AR-15. On most rifles, you do want the centerline of the optic as close to the bore as you can get it. But the AR-15’s stock is on almost the same plane as the top of the receiver, so you need some height on the scope. Otherwise, it’ll be too low for you to look through it.

5. Overtightening the scope rings is VERY BAD. You can actually crush the scope tube and damage the optic beyond repair. Stick to those torque specs! If the rings come with a little wrench, that wrench is all you need to tighten them.

How to Sight In a Riflescope — Vortex Tech Talk

This popular video from Vortex Optics explains how to sight-in a rifle so that the reticle is aligned correctly and the scope is zeroed properly for your intended application/discipline. People need to remember that the sight height established by the rings will affect their zero, as the centerline of the scope is above the centerline of the barrel.

Scope Mounting — Proper Alignment and Torque Values

An improperly installed scope can cost you points at a match. In this video, MDT Pro Shooter Keith Baker explains the simple steps required to ensure your scope is secured properly with the reticle aligned correctly. The video centers on a typical Precision Rifle PRS/NRL optics installation, but the techniques will also work for hunting, varmint, and benchrest rifles.

You have probably watched one of the excellent shooting sports videos Ryan Cleckner has done for the NSSF. Ryan’s Understanding Minute of Angle (MOA) video (see below) has been viewed over 3.6 million times! Ryan is noted for his ability to explain complex topics in an easy-to-comprehend manner.

Cleckner has also authored a hugely popular book, the Long Range Shooting Handbook, which expands on the topics covered in his popular video series. This book is the #1 Best Seller on Amazon in its category. You can view Sample Chapters from Ryan’s book — just click “Read Sample” on the Amazon product page.

As a long-range shooting expert, Ryan Cleckner has impressive credentials. Cleckner was a special operations sniper (1/75 Rgr) with multiple combat deployments, and he has served a U.S. Army sniper instructor. Currently he works as a firearms industry executive and attorney.

The Long Range Shooting Handbook is divided into three main categories: What It Is/How It Works, Fundamentals, and How to Use It. “What It Is/How It Works” covers equipment, terminology, and basic principles. “Fundamentals” covers the theory of long range shooting. “How to Use It” gives practical advice on implementing what you’ve learned, so you can progress as a skilled, long range shooter.

Ryan Cleckner’s best-selling Long Range Shooting Handbook is designed as an introduction to important fundamental concepts such as MOA vs. MILs, External Ballistics, and Environmental Effects. Included are personal tips and advice based on Cleckner’s years of experience as a sniper instructor.

Iain Harrison, editor of Recoil Magazine, said: “Whether you’re looking to dip a toe into the complex world of long range shooting, or you’re a seasoned shooter with years of trigger time, Ryan Cleckner’s book will prove to be excellent reference material. Well written and easy to understand, it covers all the essential topics that a well-rounded shooter needs to master.”

In this video, Ryan Cleckner reviews proper technique for rifle shooters. A stable platform, sight alignment, sight picture, and trigger control are key fundamentals to shooting properly.