Keith Glasscock is one of America’s greatest F-Class shooters and one of highly respected wind coach. A High Master, Keith finished second overall at the 2021 NRA F-Class Long Range Championship in F-Open division. He also finished second at the 2020 F-Open Nationals, and second at the 2019 F-Open Nationals. His consistency is unrivaled, which means he definitely knows the secrets of competition shooting and loading ultra-accurate ammo. In recent seasons, Keith has started PRS/NRL competition, bringing his impressive shooting skills to those popular tactical disciplines.

Keith has a great YouTube Channel with multiple new video releases every month. On Keith’s Winning in the Wind channel, Keith offers 265+ informative videos on a wide range of topics including wind reading, reloading, component selection, load development, and training.

For today’s Saturday Video Showcase, we offer nine of our favorite Keith Glasscock videos. These cover many key topics — ballistics, barrel care, gunsmithing, bullet sorting, reloading, maintenance and more. Each video has important points that can benefit any competitive rifle shooter, whether you shoot in local 100-yard fun matches or compete at the National Level in F-Class, LR Benchrest, Palma, High Power, or PRS/NRL.

Top 10 Methods to Improve Your Shooting Accuracy

To shoot top scores, you need great skills and great hardware. This video covers 10 things that can improve accuracy, starting with the most important. The #1 item, notes Keith, is rifle shooting skill — you need to be able to hold on target properly and run the rifle consistently shot after shot. The second most important thing is an accurate rifle — you need a rifle with an excellent barrel, quality components, and top-tier inherent accuracy. Third, you need very accurate ammo, and this means you need to perfect your reloading skills. You need precise powder measurement and good, consistent bullet seating. Fourth in the list is related to ammo — you need the ability to do effective load development to pick the best load for your particular barrel. Number 5 is the “right bullet”. You need a high-quality, ultra-consistent bullet that is a good match for your particular barrel and discipline. Watch the video for the other five items.

Wind Direction vs. Wind Speed — Which is More Important

Most shooters find wind reading somewhat intimidating. That is understandable. The wind can change constantly during a match, with variations in both wind velocity and angles. Sometimes you think you have a cycle figured out, but then there can be an unexpected lull. Or you may start a string in what you think is a stable condition, but then a surprise shift changes everything. In addition, wind flows can be influenced by terrain features, such as berms, which have varying effects depending on wind angle (e.g. a tailwind hitting a berm will act differently than a 90-deg crosswind). That is why a good wind reader needs to identify both the wind speed AND the wind angle. In this video, Keith explains when to focus primarily on direction and when to pay most attention to velocity. With headwinds and tailwinds, Keith notes, you should monitor angle changes carefully. With crosswinds, speed is the key variable to watch.

KEY Points to Remember
— Small changes in wind direction changes alter POI drastically at long range
— During head or tailwinds, focus on wind direction
— During crosswinds, focus more on wind speed
— The wind is cyclic — always be aware of the pattern

Reloading for PRS/NRL vs. F-Class

Keith Glasscock is one of the very few PRS/NRL competitors who has shot F-Class at the very highest level, finishing second three times in F-Class National Championships. PRS/NRL and F-Class are very different disciplines with different challenges. F-Class is shot prone with time between shots and target distances from 600 to 1000 yards. In PRS/NRL competition, you are shooting from multiple positions, at many distances from 100 yards on out, with fast follow-up shoots. For F-Open, you want an extremely accurate load that can deliver sub-quarter MOA groups at 200 yards. For PRS/NRL you don’t necessarily need that level of accuracy (though it helps). But you also need a load that is very consistent, has relatively low recoil, but can also provide sufficient impact energy to clearly show a hit on distant steel. In this video, Keith Glasscock explains his reloading objectives for the two disciplines.

How to Find (and Fine-Tune) Seating Depth

This is Keith’s most popular video, with 295,000 views on YouTube. Keith definitely knows how to maximize accuracy by finding the optimal seating depth for each particular barrel. He is achieving groups in the high Ones for three shots. That would be good for a short-range benchrest cartridge, but Keith is achieving that with a .284 Winchester which has much more recoil. If you shoot F-TR or F-Open or even PRS, you should watch this video.

How to Remove Carbon Build-Up in Barrels

Hard carbon is the bane of rifle shooters. Hard carbon build-up in the barrel can adversely affect accuracy, and in extreme cases, can lead to increased pressure. If possible, you should clean your barrel(s) soon after a match (or shooting session) before the carbon fully hardens. We’ve used Wipe-Out Foam right after a match (with an hour soak time) and that dramatically reduced the amount of brushing required. In this video Keith Glasscock explains the negatives of hard carbon in your barrel, and he discusses how to diagnose the problem and how to remove the carbon build-up efficiently.

Key Methods for Precision Load Development

Keith starts this video with this adage: “The best do the basics better.” He then explains how that applies to load development and achieving great accuracy. Your need to start with high-quality components then do every step of the reloading process — case prep, powder mesauring, bullet seating with precision. Keith then goes through his recommended process for developing an accurate load that will sustain accuracy throughout a match.

Recommended Barrel Break-In Methods

Barrel break-in is a controversial subject. With premium finish-lapped barrels from top manufacturers, some ace F-Class shooters get away with hardly no break-in — just shoot for score right from the get-go. On high-quality custom barrels, we’ve had success with minimalistic break-in with a few wet patches ever 3 rounds for the first 20 rounds. However, with relatively rough factory barrels, you may get better long-term results with a systematic break-in process, even using specialized products on your patches. In this video Keith Glasscock explains break-in procedures he’s found to work for various barrel types and applications.

What Counts More — ES or SD?

In general, we have gotten the best match results with loads showing an Extreme Spread (ES) under 13 FPS and an extremely low Standard Deviation (SD). We know that F-Class and ELR shooters competing at 1000 yards and beyond definitely want an extremely low ES to minimize vertical dispersion at long range. That said, some short-range Benchrest competitors look at group size more than ES/SD. In this video, Keith Glasscock talks about the reloading process and methods for lowering ES and SD. Proper brass prep is important, as is precise powder measuring. And long range shooters may want to test 3 or 4 different powder types to find the one that offers the best combination of accuracy and low ES/SD.

Sorting Bullets — Various Methods Compared

Should you sort your bullets? If so, should you sort by weight, OAL, base-to-ogive, or max diameter? Which factor? Well the answer is “it depends”. You need to carefully examine a couple dozen bullets from each batch to see how consistent they are. We had some Lapua bullets that were ultra-consistent with 97 out of 100 within .0015″ base to ogive length. We used those bullets unsorted to set a local range record at 600 yards. On the other hand if you find significant differences in weights, diameters, or bearing surface lengths, you probably should sort. One tip — many shooters do not consider the width difference in bullets. We have seen 6mm bullet diameters vary from 0.2428″ to 0.2436″. We have one 3-groove 6BR barrel that likes the skinny bullets and another 6-groove barrel that definitely prefers the fatter bullets.

The USAMU has published a “how-to” article about bullet sorting. While many of us may sort bullets by base-to-ogive length (and/or weight), the USAMU story explores the “how and why” of sorting bullets by Overall Length (OAL). Read the article highlights below, and make your own decision as to whether OAL sorting is worth the time and effort. Bryan Litz of Applied Ballistics says that sorting by OAL is not a bad idea, but base-to-ogive bullet sorting probably represents a better investment of your time.

Bullet Sorting by Overall Length

We’d like to share a specialized handloading technique which we’ve long found beneficial to our long-range (600 yards and beyond) accuracy. Sorting of bullets for extreme long range (LR) accuracy is not difficult to do, but some background in theory is needed.

Here at USAMU’s Handloading Shop, we only sort individual bullets for the most demanding Long-Range applications and important competitions. Only the most accurate rifles and shooters can fully exploit the benefits of this technique. The basic sorting process involves measuring the Overall Length (OAL) of the bullets, and grouping them in 0.001″ increments. It’s not unusual to find lots of match bullets that vary as much as 0.015″-0.020″ in length throughout the lot, although lots with much less variation are seen as well. Even in bullet lots with 0.015″ OAL variation, the bullet base-to-ogive length will show much less variation. Hence, our basic sort is by bullet OAL. One obvious benefit of sorting is easily seen in the attached photo. The few bullets that are VERY different from the average are culled out, reducing probable fliers.

How does one know what OAL increments to use when sorting? The answer is simple. As each lot of bullets is unique in its OAL distribution, it’s best to sample your bullet lot and see how they are distributed. In the attached photo, you will see a set of loading trays with a strip of masking tape running along the bottom. Each vertical row of holes is numbered in 0.001″ increments corresponding to the bullets’ OAL. A digital caliper makes this task much easier. As each bullet is measured, it is placed in the line of holes for its’ OAL, and gradually, a roughly bell-shaped curve begins to form.

Note that near the center, bullets are much more plentiful than near the edges. At the extreme edges, there are a few that differ markedly from the average, and these make great chronograph or sighting-in fodder. We recommend using a sample of 200 bullets from your lot, and 300 is even better. Some bullet lots are very consistent, with a tall, narrow band of highly-uniform bullets clustered together over just a few thousandths spread. Other lots will show a long, relatively flat curve (less uniform), and you may also see curves with 2 or more “spikes” separated by several 0.001″ OAL increments.

Bullet Sorting — OAL vs. Base-to-Ogive vs. Weight

Expert advice from Bryan Litz, Applied Ballistics
I’m often asked what is a the best measure to sort bullets by, and the answer (to this and many other questions in ballistics) is: it depends.

Choosing to sort by overall length (OAL), base to ogive (BTO), bearing surface, weight, etc. can get overwhelming. Shooters typically look for something they can measure, which shows a variation and sort by that. It’s common for dimensional variations to correlate. For example, bullets which are longer in OAL are typically also shorter in BTO, and have longer noses. All these are symptoms of a bullet that was pushed a little further into the pointing die, or possibly had more than average lube while being swaged. So in essence, if you sort by BTO, you’re measuring one symptom which can indicate a pattern in the bullets shape.

So, the question still stands — what should you measure? You’ll always see more variation in OAL than BTO, so it’s easier to sort by OAL. But sometimes the bullet tips can be jagged and have small burrs which can be misleading. Measuring BTO will result in a lower spread, but is a more direct measure of bullet uniformity.

Then there’s the question of; how much variation is too much, or, how many bins should you sort into? Shooters who see 0.025” variation in BTO may choose to sort into 5 bins of 0.005”. But if you have only 0.005” variation in the box, you’ll still sort into 5 bins of 0.001”. What’s correct? You have to shoot to know. Live fire testing will answer more questions, and answer them more decisively than any amount of discussion on the subject. The test I recommend is to identify bullets on the extreme short end of the spectrum, and some on the extreme long end. Load at least 10 rounds of each, and take turns shooting 5-shot groups with them. If there is a difference, it will be evident. The results of the testing will answer your question of: should I sort based on X, Y, or Z?”

You can read more discussions on this and other similar subjects in our Accurateshooter.com Shooters’ Forum. Here’s a link to a thread discussing bullet sorting: Bullet Sorting Thread

We have a master woodworker in our Shooters’ Forum, Jerry from Colorado (aka JVW2008). In a Shooters’ Forum thread, Jerry showcases multiple examples of his handiwork — various wood projects for the reloading room. Beautifully made, these one-of-a-kind custom cabinets and tool stands deserve to be on display in a museum.

Jerry’s creations exhibit exquisite craftsmanship and some very clever design features. What is your favorite item among the Jerry’s wood wonders shown here? You can reveal your favorites in the comment section below.

Throne for a Sartorius Analytical Balance
Jerry built this “Throne” for his ultra-precise Sartorius Entris force restoration scale, which is linked to a V2 Auto-Trickler. This is a true state-of-the-art powder measuring system on a beautiful base unit.

Cabinet for Balance Beam Scale
Here is an oak balance beam scale cabinet and weighing surface. Note the mulitiple tiers, side wings, and other smart design features.

Custom Arbor Press Base
Below is a handsome, well-designed base for K&M Arbor Press and Wilson dies. Look at the fitted recesses for the hand dies — very nice!

Jumbo Walnut/Maple Loading Block
And here is a beautiful 100-cartridge reloading block, crafted from Walnut over Maple. It’s impressive to see 100 cartridges all lined up like that!

To see more impressive wood projects by our Shooters’ Forum members, visit the Wood Working Ideas Forum Thread. Along with Jerry’s reloading toom wonders, you’ll see cleaning cradles, shooting benches, transport boxes, and much more. Check out this amazing inlaid rifle case crafted by Forum member Nando-AS for his son.

The USAMU has published a “how-to” article about bullet sorting. While many of us may sort bullets by base-to-ogive length (and/or weight), the USAMU story explores the “how and why” of sorting bullets by Overall Length (OAL). Read the article highlights below, and make your own decision as to whether OAL sorting is worth the time and effort. Bryan Litz of Applied Ballistics says that sorting by OAL is not a bad idea, but base-to-ogive bullet sorting probably represents a better investment of your time.

Bullet Sorting by Overall Length

We’d like to share a specialized handloading technique which we’ve long found beneficial to our long-range (600 yards and beyond) accuracy. Sorting of bullets for extreme long range (LR) accuracy is not difficult to do, but some background in theory is needed.

Here at USAMU’s Handloading Shop, we only sort individual bullets for the most demanding Long-Range applications and important competitions. Only the most accurate rifles and shooters can fully exploit the benefits of this technique. The basic sorting process involves measuring the Overall Length (OAL) of the bullets, and grouping them in 0.001″ increments. It’s not unusual to find lots of match bullets that vary as much as 0.015″-0.020″ in length throughout the lot, although lots with much less variation are seen as well. Even in bullet lots with 0.015″ OAL variation, the bullet base-to-ogive length will show much less variation. Hence, our basic sort is by bullet OAL. One obvious benefit of sorting is easily seen in the attached photo. The few bullets that are VERY different from the average are culled out, reducing probable fliers.

How does one know what OAL increments to use when sorting? The answer is simple. As each lot of bullets is unique in its OAL distribution, it’s best to sample your bullet lot and see how they are distributed. In the attached photo, you will see a set of loading trays with a strip of masking tape running along the bottom. Each vertical row of holes is numbered in 0.001″ increments corresponding to the bullets’ OAL. A digital caliper makes this task much easier. As each bullet is measured, it is placed in the line of holes for its’ OAL, and gradually, a roughly bell-shaped curve begins to form.

Note that near the center, bullets are much more plentiful than near the edges. At the extreme edges, there are a few that differ markedly from the average, and these make great chronograph or sighting-in fodder. We recommend using a sample of 200 bullets from your lot, and 300 is even better. Some bullet lots are very consistent, with a tall, narrow band of highly-uniform bullets clustered together over just a few thousandths spread. Other lots will show a long, relatively flat curve (less uniform), and you may also see curves with 2 or more “spikes” separated by several 0.001″ OAL increments.

Bullet Sorting — OAL vs. Base-to-Ogive vs. Weight

Expert advice from Bryan Litz, Applied Ballistics
I’m often asked what is a the best measure to sort bullets by, and the answer (to this and many other questions in ballistics) is: it depends.

Choosing to sort by overall length (OAL), base to ogive (BTO), bearing surface, weight, etc. can get overwhelming. Shooters typically look for something they can measure, which shows a variation and sort by that. It’s common for dimensional variations to correlate. For example, bullets which are longer in OAL are typically also shorter in BTO, and have longer noses. All these are symptoms of a bullet that was pushed a little further into the pointing die, or possibly had more than average lube while being swaged. So in essence, if you sort by BTO, you’re measuring one symptom which can indicate a pattern in the bullets shape.

So, the question still stands — what should you measure? You’ll always see more variation in OAL than BTO, so it’s easier to sort by OAL. But sometimes the bullet tips can be jagged and have small burrs which can be misleading. Measuring BTO will result in a lower spread, but is a more direct measure of bullet uniformity.

Then there’s the question of; how much variation is too much, or, how many bins should you sort into? Shooters who see 0.025” variation in BTO may choose to sort into 5 bins of 0.005”. But if you have only 0.005” variation in the box, you’ll still sort into 5 bins of 0.001”. What’s correct? You have to shoot to know. Live fire testing will answer more questions, and answer them more decisively than any amount of discussion on the subject. The test I recommend is to identify bullets on the extreme short end of the spectrum, and some on the extreme long end. Load at least 10 rounds of each, and take turns shooting 5-shot groups with them. If there is a difference, it will be evident. The results of the testing will answer your question of: should I sort based on X, Y, or Z?”

You can read more discussions on this and other similar subjects in our Accurateshooter.com Shooters’ Forum. Here’s a link to a thread discussing bullet sorting: Bullet Sorting Thread

We have a master woodworker in our Shooters’ Forum, Jerry from Colorado (aka JVW2008). In a Shooters’ Forum thread, Jerry showcases multiple examples of his handiwork — various wood projects for the reloading room. Beautifully made, these one-of-a-kind custom cabinets and tool stands deserve to be on display in a museum.

Jerry’s creations exhibit exquisite craftsmanship and some very clever design features. What is your favorite item among the Jerry’s wood wonders shown here? You can reveal your favorites in the comment section below.

Throne for a Sartorius Analytical Balance
Jerry built this “Throne” for his ultra-precise Sartorius Entris force restoration scale, which is linked to a V2 Auto-Trickler. This is a true state-of-the-art powder measuring system on a beautiful base unit.

Cabinet for Balance Beam Scale
Here is an oak balance beam scale cabinet and weighing surface. Note the mulitiple tiers, side wings, and other smart design features.

Custom Arbor Press Base
Below is a handsome, well-designed base for K&M Arbor Press and Wilson dies. Look at the fitted recesses for the hand dies — very nice!

Jumbo Walnut/Maple Loading Block
And here is a beautiful 100-cartridge reloading block, crafted from Walnut over Maple. It’s impressive to see 100 cartridges all lined up like that!

To see more impressive wood projects by our Shooters’ Forum members, visit the Wood Working Ideas Forum Thread. Along with Jerry’s reloading toom wonders, you’ll see cleaning cradles, shooting benches, transport boxes, and much more. Check out this amazing inlaid rifle case crafted by Forum member Nando-AS for his son.

We have a master woodworker in our Shooters’ Forum, Jerry from Colorado (aka JVW2008). In a Shooters’ Forum thread, Jerry showcases multiple examples of his handiwork — various wood projects for the reloading room. Beautifully made, these one-of-a-kind custom cabinets and tool stands deserve to be on display in a museum.

Jerry’s creations exhibit exquisite craftsmanship and some very clever design features. What is your favorite item among the Jerry’s wood wonders shown here? You can reveal your favorites in the comment section below.

Throne for a Sartorius Analytical Balance
Jerry built this “Throne” for his ultra-precise Sartorius Entris force restoration scale, which is linked to a V2 Auto-Trickler. This is a true state-of-the-art powder measuring system on a beautiful base unit.

Cabinet for Balance Beam Scale
Here is an oak balance beam scale cabinet and weighing surface. Note the mulitiple tiers, side wings, and other smart design features.

Custom Arbor Press Base
Below is a handsome, well-designed base for K&M Arbor Press and Wilson dies. Look at the fitted recesses for the hand dies — very nice!

Jumbo Walnut/Maple Loading Block
And here is a beautiful 100-cartridge reloading block, crafted from Walnut over Maple. It’s impressive to see 100 cartridges all lined up like that!

To see more impressive wood projects by our Shooters’ Forum members, visit the Wood Working Ideas Forum Thread. Along with Jerry’s reloading toom wonders, you’ll see cleaning cradles, shooting benches, transport boxes, and much more. Check out this amazing inlaid rifle case crafted by Forum member Nando-AS for his son.

We have a master woodworker in our Shooters’ Forum, Jerry from Colorado (aka JVW2008). In a Shooters’ Forum thread, Jerry showcases multiple examples of his handiwork — various wood projects for the reloading room. Beautifully made, these one-of-a-kind custom cabinets and tool stands deserve to be on display in a museum.

Jerry’s creations exhibit exquisite craftsmanship and some very clever design features. What is your favorite item among the Jerry’s wood wonders shown here? You can reveal your favorites in the comment section below.

Throne for a Sartorius Analytical Balance
Jerry built this “Throne” for his ultra-precise Sartorius Entris force restoration scale, which is linked to a V2 Auto-Trickler. This is a true state-of-the-art powder measuring system on a beautiful base unit.

Cabinet for Balance Beam Scale
Here is an oak balance beam scale cabinet and weighing surface. Note the mulitiple tiers, side wings, and other smart design features.

Custom Arbor Press Base
Below is a handsome, well-designed base for K&M Arbor Press and Wilson dies. Look at the fitted recesses for the hand dies — very nice!

Jumbo Walnut/Maple Loading Block
And here is a beautiful 100-cartridge reloading block, crafted from Walnut over Maple. It’s impressive to see 100 cartridges all lined up like that!

To see more impressive wood projects by our Shooters’ Forum members, visit the Wood Working Ideas Forum Thread. Along with Jerry’s reloading toom wonders, you’ll see cleaning cradles, shooting benches, transport boxes, and much more. Check out this amazing inlaid rifle case crafted by Forum member Nando-AS for his son.

The USAMU has published a “how-to” article about bullet sorting. While many of us may sort bullets by base-to-ogive length (and/or weight), the USAMU story explores the “how and why” of sorting bullets by Overall Length (OAL). Read the article highlights below, and make your own decision as to whether OAL sorting is worth the time and effort. Bryan Litz of Applied Ballistics says that sorting by OAL is not a bad idea, but base-to-ogive bullet sorting probably represents a better investment of your time.

Bullet Sorting by Overall Length

We’d like to share a specialized handloading technique which we’ve long found beneficial to our long-range (600 yards and beyond) accuracy. Sorting of bullets for extreme long range (LR) accuracy is not difficult to do, but some background in theory is needed.

Here at USAMU’s Handloading Shop, we only sort individual bullets for the most demanding Long-Range applications and important competitions. Only the most accurate rifles and shooters can fully exploit the benefits of this technique. The basic sorting process involves measuring the Overall Length (OAL) of the bullets, and grouping them in 0.001″ increments. It’s not unusual to find lots of match bullets that vary as much as 0.015″-0.020″ in length throughout the lot, although lots with much less variation are seen as well. Even in bullet lots with 0.015″ OAL variation, the bullet base-to-ogive length will show much less variation. Hence, our basic sort is by bullet OAL. One obvious benefit of sorting is easily seen in the attached photo. The few bullets that are VERY different from the average are culled out, reducing probable fliers.

How does one know what OAL increments to use when sorting? The answer is simple. As each lot of bullets is unique in its OAL distribution, it’s best to sample your bullet lot and see how they are distributed. In the attached photo, you will see a set of loading trays with a strip of masking tape running along the bottom. Each vertical row of holes is numbered in 0.001″ increments corresponding to the bullets’ OAL. A digital caliper makes this task much easier. As each bullet is measured, it is placed in the line of holes for its’ OAL, and gradually, a roughly bell-shaped curve begins to form.

Note that near the center, bullets are much more plentiful than near the edges. At the extreme edges, there are a few that differ markedly from the average, and these make great chronograph or sighting-in fodder. We recommend using a sample of 200 bullets from your lot, and 300 is even better. Some bullet lots are very consistent, with a tall, narrow band of highly-uniform bullets clustered together over just a few thousandths spread. Other lots will show a long, relatively flat curve (less uniform), and you may also see curves with 2 or more “spikes” separated by several 0.001″ OAL increments.

Bullet Sorting (OAL vs. Base-to-Ogive vs. Weight) — Litz Talks

I’m often asked what is a the best measure to sort bullets by, and the answer (to this and many other questions in ballistics) is: it depends.

Choosing to sort by overall length (OAL), base to ogive (BTO), bearing surface, weight, etc. can get overwhelming. Shooters typically look for something they can measure, which shows a variation and sort by that. It’s common for dimensional variations to correlate. For example, bullets which are longer in OAL are typically also shorter in BTO, and have longer noses. All these are symptoms of a bullet that was pushed a little further into the pointing die, or possibly had more than average lube while being swaged. So in essence, if you sort by BTO, you’re measuring one symptom which can indicate a pattern in the bullets shape.

So, the question still stands — what should you measure? You’ll always see more variation in OAL than BTO, so it’s easier to sort by OAL. But sometimes the bullet tips can be jagged and have small burrs which can be misleading. Measuring BTO will result in a lower spread, but is a more direct measure of bullet uniformity.

Then there’s the question of; how much variation is too much, or, how many bins should you sort into? Shooters who see 0.025” variation in BTO may choose to sort into 5 bins of 0.005”. But if you have only 0.005” variation in the box, you’ll still sort into 5 bins of 0.001”. What’s correct? You have to shoot to know. Live fire testing will answer more questions, and answer them more decisively than any amount of discussion on the subject. The test I recommend is to identify bullets on the extreme short end of the spectrum, and some on the extreme long end. Load at least 10 rounds of each, and take turns shooting 5-shot groups with them. If there is a difference, it will be evident. The results of the testing will answer your question of: should I sort based on X, Y, or Z?”

You can read more discussion on this and other similar subjects in the new Ballistics & Bullets board in the Accurateshooter.com forum. Here’s a link to the thread which is discussing bullet sorting: Bullet Sorting Thread

The $79.99 Sinclair Bullet Sorting Stand with Dial Indicator (item 749-011-469WS) comes with a heavy black granite base that stays put on your loading bench. The included analog dial indicator has a quick-release lever allowing easy placement and removal of bullets into the comparator. This lever allow the spring-loaded indicator shaft to pop up out of the way.

In the video below, Sinclair shows how to use the Bullet Sorting device. Sinclair recommend sorting in batches with variance no greater than .005 (five-thousandths) in base-to-ogive length. We like to hold tolerances even tighter, trying to hold spreads to .003. The special base comparators used with this tool are offered for $10.99 in .22 caliber, 6mm, 6.5mm, 7mm, .30 caliber, and .338 caliber. The sorting stand can also be used with Sinclair’s handy multi-caliber hex-style comparators (items 749-002-942WS, or 748-002-833WS, $19.99).

The USAMU recently published a “how-to” article about bullet sorting. While many of us may sort bullets by base-to-ogive length (and/or weight), the USAMU story explores the “how and why” of sorting bullets by Overall Length (OAL). Read the article highlights below, and make your own decision as to whether OAL sorting is worth the time and effort. Bryan Litz of Applied Ballistics says that sorting by OAL is not a bad idea, but base-to-ogive bullet sorting probably represents a better investment of your time.

Bullet Sorting by Overall Length

We’d like to share a specialized handloading technique which we’ve long found beneficial to our long-range (600 yards and beyond) accuracy. Sorting of bullets for extreme long range (LR) accuracy is not difficult to do, but some background in theory is needed.

Here at USAMU’s Handloading Shop, we only sort individual bullets for the most demanding Long-Range applications and important competitions. Only the most accurate rifles and shooters can fully exploit the benefits of this technique. The basic sorting process involves measuring the Overall Length (OAL) of the bullets, and grouping them in 0.001″ increments. It’s not unusual to find lots of match bullets that vary as much as 0.015″-0.020″ in length throughout the lot, although lots with much less variation are seen as well. Even in bullet lots with 0.015″ OAL variation, the bullet base-to-ogive length will show much less variation. Hence, our basic sort is by bullet OAL. One obvious benefit of sorting is easily seen in the attached photo. The few bullets that are VERY different from the average are culled out, reducing probable fliers.

How does one know what OAL increments to use when sorting? The answer is simple. As each lot of bullets is unique in its OAL distribution, it’s best to sample your bullet lot and see how they are distributed. In the attached photo, you will see a set of loading trays with a strip of masking tape running along the bottom. Each vertical row of holes is numbered in 0.001″ increments corresponding to the bullets’ OAL. A digital caliper makes this task much easier. As each bullet is measured, it is placed in the line of holes for its’ OAL, and gradually, a roughly bell-shaped curve begins to form.

Note that near the center, bullets are much more plentiful than near the edges. At the extreme edges, there are a few that differ markedly from the average, and these make great chronograph or sighting-in fodder. We recommend using a sample of 200 bullets from your lot, and 300 is even better. Some bullet lots are very consistent, with a tall, narrow band of highly-uniform bullets clustered together over just a few thousandths spread. Other lots will show a long, relatively flat curve (less uniform), and you may also see curves with 2 or more “spikes” separated by several 0.001″ OAL increments.

Bullet Sorting (OAL vs. Base-to-Ogive vs. Weight) — Litz Talks

I’m often asked what is a the best measure to sort bullets by, and the answer (to this and many other questions in ballistics) is: it depends.

Choosing to sort by overall length (OAL), base to ogive (BTO), bearing surface, weight, etc. can get overwhelming. Shooters typically look for something they can measure, which shows a variation and sort by that. It’s common for dimensional variations to correlate. For example, bullets which are longer in OAL are typically also shorter in BTO, and have longer noses. All these are symptoms of a bullet that was pushed a little further into the pointing die, or possibly had more than average lube while being swaged. So in essence, if you sort by BTO, you’re measuring one symptom which can indicate a pattern in the bullets shape.

So, the question still stands — what should you measure? You’ll always see more variation in OAL than BTO, so it’s easier to sort by OAL. But sometimes the bullet tips can be jagged and have small burrs which can be misleading. Measuring BTO will result in a lower spread, but is a more direct measure of bullet uniformity.

Then there’s the question of; how much variation is too much, or, how many bins should you sort into? Shooters who see 0.025” variation in BTO may choose to sort into 5 bins of 0.005”. But if you have only 0.005” variation in the box, you’ll still sort into 5 bins of 0.001”. What’s correct? You have to shoot to know. Live fire testing will answer more questions, and answer them more decisively than any amount of discussion on the subject. The test I recommend is to identify bullets on the extreme short end of the spectrum, and some on the extreme long end. Load at least 10 rounds of each, and take turns shooting 5-shot groups with them. If there is a difference, it will be evident. The results of the testing will answer your question of: should I sort based on X, Y, or Z?”

You can read more discussion on this and other similar subjects in the new Ballistics & Bullets board in the Accurateshooter.com forum. Heres a link to the thread which is discussing bullet sorting: Bullet Sorting Thread