This is BIG news for the Extreme Long Range (ELR) game. Berger Bullets will offer a line of SOLID bullets in .375 caliber. You read that right — these will be the first-ever large diameter Berger projectiles manufactured from a solid copper alloy. Most conventional bullets feature a jacket over a metal core, typically lead alloy. These new Berger solids are lathe-turned from solid copper alloy — shaped with precision into perfect aerodynamic profiles. The new Berger ELR solids boast a long, VLD shape with ultra-high Ballistic Coefficients. The new .375 caliber Berger ELR solids will be offered in two bullet weights: 379 grains and 407 grains.
The prototype 400gr version of this solid bullet was extensively tested at 2400 yards (above). It remained supersonic at that distance, a remarkable 1.36 miles. Berger will now offer two production versions, 379gr and 407gr, based on this successful prototype, further optimized. Here is Berger’s official release:
Berger Bullets proudly announces the New Extreme Long Range (ELR) Match Solid Projectile line, beginning with .375 caliber 379 grain and 407 grain offerings.
Extreme Long-Range shooting to distances of two miles and beyond has taken the firearms community by storm. With much of its roots developed from elite military sniper and Special Forces rifle training, ELR enthusiasts are utilizing highly innovative rifle and ammunition technology to engage targets at distances previously unheard of. Berger has taken the lead pioneering ELR, similar to how it’s dominated all other long-range rifle disciplines.
Berger Bullets chief ballistician Bryan Litz states: “Our new ELR Solid Match Bullets provide both competition shooters and Mil/LE forces a long-range solid projectile like no other. Its highly-optimized VLD ogive design and lathe-turned solid copper construction provide a ballistic advantage that is unmatched by any conventional-style bullet.”
Berger .375 Caliber Bullet is a Winner
Berger’s .375 caliber solid bullet design has already been proven in competition. At the 2018 World Longest Shot Challenge (WLSC), Team Applied Ballistics used the prototype .375 Cal ELR solid with great results. The new .375 caliber monolithic Berger bullet designed by Bryan Litz was used by the first and second place finishers in the “above .338 caliber” class. The prototype .375 Cal solid performed great, and the ultra-high BC was confirmed. READ WLSC Story HERE.
Advanced Doppler Radar was used to confirm Ballistics Data for the new Berger .375-Caliber Solids:
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This article, from the USAMU Facebook Page, concerns reloading safety. In the relentless quest for more speed and flatter ballistics, some hand-loaders load way too hot, running charges that exceed safe pressure levels. Hint: If you need a mallet to open your bolt, chances are your load is too hot. Stay within safe margins — your equipment will last longer, and you won’t risk an injury caused by over-pressure. In this article, the USAMU explains that you need to account for bullet shape, diameter, and bearing surface when working up a load. Don’t assume that a load which is safe for one bullet will be safe for another even if both bullets are exactly the same weight.
Today, we continue our handloading safety theme, focusing on not inadvertently exceeding the boundaries of known, safe data.
Bullet manufacturers’ loading manuals often display three, four, or more similar-weight bullets grouped together with one set of load recipes. The manufacturer has tested these bullets and developed safe data for that group. However, seeing data in this format can tempt loaders — especially new ones — to think that ALL bullets of a given weight and caliber can interchangeably use the same load data. Actually, not so much.
The researchers ensure their data is safe with the bullet yielding the highest pressure. Thus, all others in that group should produce equal or less pressure, and they are safe using this data.
However, bullet designs include many variables such as different bearing surface lengths, hardness, and even slight variations in diameter. In fact, diameters can occasionally range up to 0.001″ by design. Thus, choosing untested bullets of the same weight and caliber, and using them with data not developed for them can yield excess pressures.
This is only one of the countless reasons not to begin at or very near the highest pressure loads during load development. Always begin at the starting load and look for pressure signs as one increases powder charges.
Bullet Bearing Surface and Pressure
Bullet bearing surface length (BSL) is often overlooked when considering maximum safe powder charges and pressures. In Photo 1, note the differences in the bullets’ appearance. All three are 7 mm, and their maximum weight difference is just five grains. Yet, the traditional round nose, flat base design on the left appears to have much more BSL than the sleeker match bullets. All things being equal, based on appearance, the RN/FB bullet seems likely to reach maximum pressure with significantly less powder than the other two designs.
Photo 1: Three Near-Equal-Weight 7mm Bullets with Different Shapes
Due to time constraints, the writer used an approximate, direct measurement approach to assess the bullets’ different BSLs. While fairly repeatable, the results were far from ballistics engineer-grade. Still, they are adequate for this example.
Bullet 1 (L-R), the RN/FB, has a very slight taper and only reaches its full diameter (0.284 inch) very near the cannelure. This taper is often seen on similar bullets; it helps reduce pressures with good accuracy. The calculated BSL of Bullet 1 was ~0.324″. The BSL of Bullet 2, in the center, was ~0.430″, and Bullet 3’s was ~ 0.463″. Obviously, bullets can be visually deceiving as to BSL!
Some might be tempted to use a bullet ogive comparator (or two) to measure bullets’ true BSL for comparison’s sake. Unfortunately, comparators don’t typically measure maximum bullet diameter and this approach can be deluding.
Photo 2: The Perils of Measuring Bearing Surface Length with Comparators
In Photo 2, two 7mm comparators have been installed on a dial caliper in an attempt to measure BSL. Using this approach, the BSLs differed sharply from the original [measurements]. The comparator-measured Bullet 1 BSL was 0.694” vs. 0.324” (original), Bullet 2 was 0.601” (comparator) vs. 0.430” (original), and Bullet 3 (shown in Photo 2) was 0.602” (comparator) vs. 0.463” (original). [Editor’s comment — Note the very large difference for Bullet 1, masking the fact that the true full diameter on this bullet starts very far back. You can use comparators on calipers, but be aware that this method may give you deceptive reading — we’ve seen variances just by reversing the comparators on the calipers, because the comparators, typically, are not perfectly round, nor are they machined to precision tolerances.]
Thanks to the U.S. Army Marksmanship Unit for allowing the reprint of this article.
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We know many of our readers aren’t 100% clear on the difference between a secant ogive bullet and a tangent ogive bullet. Add the “blended” or “hybrid” ogive into the design equation and you add to the confusion. In this article, Berger Ballistician Bryan Litz, explains the characteristics of the three popular ogive types: tangent, secant, and hybrid.
In discussions of ballistics, you’ll see references to “tangent” and “secant” bullet shapes. For many readers, these terms can be confusing. To add to the confusion, bullet makers don’t always identify their projectiles as secant or tangent designs. This article provides a basic explanation of tangent and secant designs, to help you understand the characteristics of both bullet shapes.
Tangent vs. Secant vs. Hybrid
Most match bullets produced today use a tangent ogive profile, but the modern VLD-style bullets employ a secant profile. To further complicate matters, the latest generation of “Hybrid” projectiles from Berger Bullets feature a blended secant + tangent profile to combine the best qualities of both nose shapes. The secant section provides reduced drag, while the tangent section makes the bullet easier to tune, i.e. less sensitive to bullet seating depth position.
Berger Bullets ballistician Bryan Litz explains tangent and secant bullet ogive designs in a glossary section of his Applied Ballistics website, which we reprint below. Bryan then explains how tangent and secant profiles can be combined in a “hybrid” design.
How Bullet Ogive Curves are Defined
While the term “ogive” is often used to describe the particular point on the bullet where the curve reaches full bullet diameter, in fact the “ogive” properly refers to the entire curve of the bullet from the tip to the full-diameter straight section — the shank. Understanding then, that the ogive is a curve, how is that curve described?
LITZ: The ogive of a bullet is usually characterized by the length of its radius. This radius is often given in calibers instead of inches. For example, an 8 ogive 6mm bullet has an ogive that is a segment of a circular arc with a radius of 8*.243 = 1.952”. A .30-caliber bullet with an 8 ogive will be proportionally the same as the 8 ogive 6mm bullet, but the actual radius will be 2.464” for the .30 caliber bullet.
For a given nose length, if an ogive is perfectly tangent, it will have a very specific radius. Any radius longer than that will cause the ogive to be secant. Secant ogives can range from very mild (short radius) to very aggressive (long radius). The drag of a secant ogive is minimized when its radius is twice as long as a tangent ogive radius. In other words, if a tangent ogive has an 8 caliber radius, then the longest practical secant ogive radius is 16 calibers long for a given nose length.”
Ogive Metrics and Rt/R Ratio
LITZ: There is a number that’s used to quantify how secant an ogive is. The metric is known as the Rt/R ratio and it’s the ratio of the tangent ogive radius to the actual ogive radius for a given bullet. In the above example, the 16 caliber ogive would have an Rt/R ratio of 0.5. The number 0.5 is therefore the lowest practical value for the Rt/R ratio, and represents the minimum drag ogive for a given length. An ogive that’s perfectly tangent will have an Rt/R ratio of 1.0. Most ogives are in between an Rt/R of 1.0 and 0.5. The dimensioned drawings at the end of my Applied Ballistics book provide the bullets ogive radius in calibers, as well as the Rt/R ratio. In short, the Rt/R ratio is simply a measure of how secant an ogive is. 1.0 is not secant at all, 0.5 is as secant as it gets.
Hybrid Bullet Design — Best of Both Worlds?
Bryan Litz has developed a number of modern “Hybrid” design bullets for Berger. The objective of Bryan’s design work has been to achieve a very low drag design that is also “not finicky”. Normal (non-hybrid) secant designs, such as the Berger 105gr VLD, deliver very impressive BC values, but the bullets can be sensitive to seating depth. Montana’s Tom Mousel has set world records with the Berger 105gr VLD in his 6mm Dasher, but he tells us “seating depth is critical to the best accuracy”. Tom says a mere .003″ seating depth change “makes a difference”. In an effort to produce more forgiving high-BC bullets, Bryan Litz developed the hybrid tangent/secant bullet shape.
Bryan Litz Explains Hybrid Design and Optimal Hybrid Seating Depths
Story sourced by Edlongrange.
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Sierra has released two new Tipped MatchKing (TMK®) bullets that should find favor with PRS competitors and tactical shooters*. Sierra is producing a new 95 grain 6mm projectile and a new 130 grain 6.5mm bullet. Both feature acetal resin tips that lower drag by improving the ballistic coefficient (BC) and making the BC more uniform from bullet to bullet. The 95-grainer should work well as a higher-speed option in the .243 Win, 6mm Creedmoor, 6mm Dasher, and 6mmBR. We were able to push other 95gr bullets nearly 100 fps faster than 105gr bullets from a 6mmBR. For those shooting the 6.5×47 Lapua and 6.5 Creedmoor, the new 130gr TMK should be a near-ideal bullet weight. We know that Berger’s 6.5mm 130gr VLD works great in those mid-sized cartridges, so Sierra’s new 130-grainer should be in the “sweet spot”. Also, in the .260 Remington the 130gr TMK should be capable of velocities that hit predicted accuracy nodes with ease. The 6mm 95 grain TMK requires a twist rate of 1:9″ or faster to stabilize while the 6.5mm 130 grain TMK requires a twist rate of 1:8″ or faster to stabilize.
We expect the 130gr 6.5mm TMK to find favor with Tactical Shooters
* In addition, Sierra plans to add a 7mm 160gr TMK to the line-up, product #7660, but we don’t expect this to be used for tactical games because of the heavier recoil.
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With the Berger Southwest Nationals kicking off February 4, 2014 in Phoenix, Arizona, we thought our readers might enjoy a very interesting interview with the top decision-makers at Berger Bullets, namely company founder Walt Berger, plus Eric Stecker, Berger’s Executive Vice President.
This interview covers a wide range of topics in seven (7) separate segments. We’ve embedded the first two interview sections in this article, with links for the other five below.
Sinclair Int’l has released a 7-part series of video interviews with Walt Berger (founder of Berger Bullets) and Eric Stecker (Berger’s Exec. VP and Master Bulletsmith). The series is hosted by Bill Gravatt (who was Sinclair’s President at the time the interview was filmed). You can watch Parts 1 and 2 of the interview here, and we’ve provided links to the remaining Parts 3 through 7. All seven interview segments offer interesting material. Part 6 mentions the Berger Reloading Manual (many years in the making). Part 7, over 13 minutes long, contains interesting discussions of bullet testing and the hunting performance of Berger VLDs.
NOTE: You can view this entire video series (and many other videos) on Sinclair’s YouTube Channel Page.
SHOT Show 2013 kicks off in two weeks in Las Vegas. One of our top priorities is to talk with the bullet makers from Berger, Hornady, Lapua, and Nosler.
At SHOT Show 2012 we chatted with Berger Ballistician Bryan Litz about Berger’s popular line of Hybrid bullets. Berger now offers a wide range of Hybrids in multiple calibers and weights. In fact, for .30-Caliber shooters, Berger now offers six different Hybrid match bullets, with weights from 155 grains up to 230 grains. New .338 Cal Tactical Hybrids were released in 2012 and big .375 Cal, and .408 Cal Hybrids are in the works (read more below).
Bryan tells us: “The hybrid design is Berger’s solution to the age old problem of precision vs. ease of use. This design is making life easier for handloaders as well as providing opportunities for commercial ammo loaders who need to offer a high performance round that also shoots precisely in many rifles with various chamber/throat configurations.”
For those not familiar with Hybrid bullets, the Hybrid design blends two common bullet nose shapes on the front section of the bullet (from the tip to the start of the bearing surface). Most of the curved section of the bullet has a Secant (VLD-style) ogive for low drag. This then blends in a Tangent-style ogive curve further back, where the bullet first contacts the rifling. The Tangent section makes seating depth less critical to accuracy, so the Hybrid bullet can shoot well through a range of seating depths, even though it has a very high Ballistic Coefficient (BC).
In the video we asked Bryan for recommended seating depths for 7mm and .30-Caliber Hybrid bullets. Bryan advises that, as a starting point, Hybrid bullets be seated .015″ (fifteen thousandths) off the lands in most barrels. Watch the video for more tips how to optimize your loads with Hybrid bullets.
Berger is Developing New Large-Caliber and Hunting Hybrids
In related news, Berger announced that it will be offering a series of .338-caliber Hybrids. First Berger is reintroducing the Gen 1 .338 Cal, 300gr Hybrid bullet in Berger’s Hunting line. Berger will also be making a 250gr Hybrid Hunting bullet using the same type of jacket as the original Gen 1 300gr Hybrid bullet. In addition, Berger has released a .338 Cal 250gr Match Hybrid OTM Tactical bullet, along with a 300gr Match Hybrid OTM Tactical projectile.
More big bullets are on the drawing board. Our source says “.375 Caliber and then .408 Caliber are the next new calibers to be made at Berger”. These are in the design phase, and Berger needs to build a new machine, so the .375s and .408s will not be available until 2013 at the earliest.
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They have been on the market for nearly a year, but you may not know that Redding sells a line of Micrometer Seater assemblies, which can be used to upgrade Redding’s standard ½-20 thread seater dies. These replacements allow you to enjoy the ease-of-use and precision of a micrometer seater, without buying a whole new die. Redding states that “the new Bullet Seating Micrometers are a direct [retro-fit] replacement for the original seating plugs and can easily be changed from one die to another.” Unfortunately, these add-on micrometer stems haven’t started shipping yet, and Redding has not provided a firm delivery date (or price). We are hoping the products will start arriving by mid-summer.
NOTE: the seater assemblies are a component of the bullet seating die. These are not the dies themselves. It is the top portion of the die that contains the plunger, which pushes the bullet into the case. And here is something important: these new Bullet Seating Micrometers are available for both traditional tangent ogive bullet shapes as well as for VLD (secant ogive) bullets.
That’s right, Redding now offers micrometer seater assemblies made specifically for Berger VLD bullets. These Seating Micrometers allow you to convert a standard seater to a Micrometer seater optimized for VLDs. That’s great news for VLD fans. Eric Stecker of Berger Bullets tells us: “We have confirmed with Redding that each of the new micrometer plugs in the VLD group were designed based on Berger VLD bullets. We provided all of our VLD bullets to Redding, from which they took deliberate measurements and made these new plugs.”
New VLD-specific Seater Stems Improve Bullet Seating Depth Consistency
Stecker explains how the new VLD-specific seater assemblies produce better, more accurate ammo: “Many shooters have problems getting the VLD bullets to shoot because of the bullet seater die they are using. VLD bullet noses are so long and sharp that, in many dies, the bullet tip bottoms out in the bullet seater stem instead of touching on the side of the ogive like it should. Seating depth inconsistencies up to .025″ can occur if the seater stem bottoms out on the bullet tip. The worst part is that many shooters have no idea that this is the root cause of their poor performance. This new product can help turn a frustrating shooting experience into an enjoyable one.”
Story tip from Edlongrange. We welcome submissions from our readers.
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Setpoint Ammunition, a subsidiary of Setpoint Systems Inc., has finalized an OEM distribution agreement with Berger Bullets. The agreement allows Setpoint Ammunition to offer a selection of Berger’s precision bullets for use in custom cartridges sold on their SetpointAmmo.com website. Setpoint Ammunition will initially offer three Berger projectiles for use in their 7.62×51 / .308 WIN cartridges: 155gr Match Hybrid; 185gr Long Range BT;and 168gr Match Hunting VLD.
“The agreement with Berger Bullets allows us to offer some of the best projectiles available for use in our precision ammunition,” said Brad Angus, President of Setpoint Ammunition. Angus went on to say that this agreement has been anticipated for some time. “Teaming with Berger has always been one of our goals. When you combine the well-known reputation of Berger Bullets with the unprecedented precision that we’ve built into our ammunition loading process, you get the best custom rifle ammunition available on the commercial market today.”
Setpoint’s Unique Manufacturing Process
The revolutionary Setpoint Ammunition ordering and manufacturing process allows customers to dictate the case, projectile, powder load and overall length of the cartridge via the online ordering system. This unique process gives consumers the ability to fine-tune their ammo to fit their specific firearm and application.
The order is relayed from the website to the manufacturing facility, where fully-automated machines (designed and built for Setpoint Ammunition by Setpoint Systems,) load and assemble the cartridges to high levels of precision. By mechanizing the entire loading process, precision and consistency are maximized. The final outcome is affordable, reliable, high-performance ammunition. (Sales packages are available for military, law enforcement and tactical security groups.)
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by Robert Whitley
I recently received some of the new Berger 6mm 105gr Hybrid Match Bullets for testing. There is much interest in these new 6mm Hybrids, so I thought I’d share my initial observations. A couple of things are very striking about these new bullets:
1. They appear to be very long, sleek and aerodynamic, while they still maintain a good bearing surface length (full-diameter shank). I like bullets with a sufficient bearing surface length because I find that it makes for bullets that are easier to shoot and tune. I also feel a good bearing surface length makes for a bullet that has a better potential for consistent performance over bullets with a short bearing surface.
2. The published ballistic coefficient (BC) numbers on these bullets are quite high. They have a stated G1 BC of .547 and a G7 BC of .278. Looking at the bullets themselves it’s easy to see why these BC numbers are so high. The front end of the projectile is quite long and similar to what you see on long-range VLDs, but the transition to the bearing surface has a blended appearance (the Hybrid part) vs. the sharp transition you typically see with most VLDs and secant ogive bullets. The 105gr Hybrid bullets also have a long boat-tail.
3. The new Berger 105gr Hybrid bullets measure right around 1.261″ OAL. By comparison, the many other 105gr to 108gr bullets I’ve measured all seem to run in the range of 1.210″ to 1.225″ OAL. The Berger 105gr Hybrid bullets are thus a fair bit longer than the others, which is why a true 1:8″ or faster twist is recommended for them. The bearing surface diameter of the new Hybrids was dead on at 0.243″. So these bullets are neither “fat” nor “skinny”.
4. The tips on these bullets are quite uniform, with the meplats closed up nicely. The Hybrids have nice small tips similar those on the Berger 108s (reasonably tight in diameter). While I sometimes like to point my match bullets, I like to shoot bullets that are ready to go “out of the box”, and these are just that. I’m hoping they will perform very well without meplat trimming or pointing.
Berger’s 6mm 105gr Hybrids Slated to Go on Sale in Late October
Berger has done its own in-house testing on these bullets and found them to be accurate and appropriate for release for additional testing by shooters out in the field. Unless this additional field testing reveals something that no one anticipated (which I doubt), I suspect these new projectiles will be one of Berger’s most popular bullet offerings. The planned official release date for the new 6mm, 105gr Hybrids has been tentatively set for mid- to late-October of 2011. So, barring some last minute changes, these 105s should be on dealers’ shelves before Thanksgiving.
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In discussions of ballistics, you’ll see references to “tangent” and “secant” bullet shapes. We know that, for many readers, these terms can be confusing. To add to the confusion, bullet makers don’t always identify their projectiles as secant or tangent designs. This article provides a basic explanation of tangent and secant designs, to help you understand the characteristics of both bullet shapes.
Tangent Ogive vs. Secant Ogive vs. Hybrid
Most match bullets produced today use a tangent ogive profile, but the modern VLD-style bullets employ a secant profile. To further complicate matters, the latest generation of “Hybrid” projectiles from Berger Bullets feature a blended secant + tangent profile to combine the best qualities of both nose shapes. The secant section provides reduced drag, while the tangent section makes the bullet easier to tune, i.e. less sensitive to seating depth position.
Berger Bullets ballistician Bryan Litz explains tangent and secant bullet ogive designs in a glossary section of his Applied Ballistics website, which we reprint below. Bryan then explains how tangent and secant profiles can be combined in a “hybrid” design.
How Bullet Ogive Curves are Defined
While the term “ogive” is often used to describe the particular point on the bullet where the curve reaches full bullet diameter, in fact the “ogive” properly refers to the entire curve of the bullet from the tip to the full-diameter straight section — the shank. Understanding then, that the ogive is a curve, how is that curve described?
LITZ: The ogive of a bullet is usually characterized by the length of its radius. This radius is often given in calibers instead of inches. For example, an 8 ogive 6mm bullet has an ogive that is a segment of a circular arc with a radius of 8*.243 = 1.952”. A .30-caliber bullet with an 8 ogive will be proportionally the same as the 8 ogive 6mm bullet, but the actual radius will be 2.464” for the .30 caliber bullet.
For a given nose length, if an ogive is perfectly tangent, it will have a very specific radius. Any radius longer than that will cause the ogive to be secant. Secant ogives can range from very mild (short radius) to very aggressive (long radius). The drag of a secant ogive is minimized when its radius is twice as long as a tangent ogive radius. In other words, if a tangent ogive has an 8 caliber radius, then the longest practical secant ogive radius is 16 calibers long for a given nose length.”
Secant Ogive vs. Tangent Ogive
Ogive metrics, and Rt/R
LITZ: There is a number that’s used to quantify how secant an ogive is. The metric is known as the Rt/R ratio and it’s the ratio of the tangent ogive radius to the actual ogive radius for a given bullet. In the above example, the 16 caliber ogive would have an Rt/R ratio of 0.5. The number 0.5 is therefore the lowest practical value for the Rt/R ratio, and represents the minimum drag ogive for a given length. An ogive that’s perfectly tangent will have an Rt/R ratio of 1.0. Most ogives are in between an Rt/R of 1.0 and 0.5. The dimensioned drawings at the end of my Applied Ballistics book provide the bullets ogive radius in calibers, as well as the Rt/R ratio. In short, the Rt/R ratio is simply a measure of how secant an ogive is. 1.0 is not secant at all, 0.5 is as secant as it gets.
Hybrid Bullet Design — Best of Both Worlds?
Bryan Litz has been developing a number of modern “Hybrid” design bullets for Berger. The objective of Bryan’s design work has been to achieve a very low drag design that is also “not finicky”. Normal (non-hybrid) secant designs, such as the Berger 105gr VLD, deliver very impressive BC values, but the bullets can be sensitive to seating depth. Montana’s Tom Mousel has set world records with the Berger 105gr VLD in his 6mm Dasher, but he tells us “seating depth is critical to the best accuracy”. Tom says a change of .005″ in seating depth “can cause the group size to increase substantially”. In an effort to produce more forgiving high-BC bullets, Bryan Litz has developed a hybrid tangent/secant bullet shape. This is explained in the illustration below.
Story sourced by Edlongrange.
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Redding has introduced a new series of Bullet Seating Micrometers (aka Micrometer Bullet Seater Plug Replacements). These can be retro-fitted into standard Redding seater dies with 1/2-20 thousandths threads, replacing the standard dies’ seater plugs. So, for about forty bucks, you can now make your standard Redding seater die into a Micrometer Seater — and you can swap one Micrometer Seater top among a variety of dies in the same caliber class (such as .223 to 22-250). Notably, the new Bullet Seating Micrometers are offered in two different configurations — one for traditional bullet shapes, and another for VLD bullets. Redding’s new Bullet Seating Micrometers are priced at $48.90 MSRP, but expect to see an initial “street price” of about $37.00-$39.00.
VLD Version of Micrometer Fits Berger Bullets
Eric Stecker of Berger Bullets stated: “I spoke with Redding and confirmed that the new VLD-Version Micrometer plugs are specifically designed for Berger VLD bullets. We provided all of our VLD bullets to them from which they took deliberate measurements and made these new plugs. This is news that needs to be shared with anyone shooting Berger VLD bullets.”
Bad News: You Need Different Micrometer Units for VLD and Non-VLD Bullets
Unfortunately, the Micrometer Seater Plug Replacement is ALL ONE UNIT. You cannot interchange VLD and non-VLD seater stems inside a given Bullet Seating Micrometer. You have to buy one of each (one Micrometer unit for VLD bullets and another Micrometer unit for standard bullets). Likewise, you cannot swap in larger or smaller diameter seater stems to make one Bullet Seating Micrometer head work with dies for widely different bullet diameters. That means you can’t buy one Micrometer head and use it in both a .223 Rem Seater Die and a 30-06 die, for example. You have to stay within the same die class, as explained next.
Good News: Bullet Seating Micrometer — Use in Multiple Dies
As long as you stick with the same seater die class, one Bullet Seating Micrometer can be used on multiple dies. In practical terms, you can usually (but not always) use the same Micrometer assembly on multiple dies within the same caliber family. And when you move the Micrometer unit from one die to another, all you need to record is the Micrometer setting. Look at the photo — the knurled ring at the bottom of the black replacement plug is a dead-stop collar that does not move. That means the lower section of the Micrometer always maintains the same position relative to the die when installed. When moving the Micrometer plug from one die to another, simply adjust the Micrometer knob to the proper setting for that cartridge/bullet. Each hash mark represents an .001″ change in seating depth.
There are sixteen (16) part numbers for the new Bullet Seating Micrometers. These correspond to the VLD and Standard versions for eight (8) different classes of Redding seater dies. To see which Micrometer replacement you need, look for the number on the top of your standard Redding seater, and find that in the right-most column. Then chose whether you want the standard or VLD version (shown in columns one and two on the same line).
Editor’s Comment: We like that fact that Redding is offering these retro-fit Micrometer Seater Plug Replacements. And it’s great that the buyer has a choice between VLD and non-VLD styles. However, we think the lack of interchangeability of bullet seater stems is going to be a “deal-breaker” for many shoppers. Redding obviously wants to sell as many Micrometer Seater Plugs as possible. It doesn’t want you to be able to buy one $40 Replacement plug and use that one product for a half-dozen or more calibers. That’s to be expected. However, we think that, for a given cartridge/caliber, Redding should have engineered the Micrometer Bullet Seater Plug Replacement with swappable seating stems so that one $40 Micrometer head could seat BOTH VLD and non-VLD bullets… at least for that cartridge/caliber.
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The big news at Berger Bullets for 2011 is the Hybrid. No, Walt isn’t switching to a Prius… but Berger IS committing to the dual-shape hybrid design for a full range of calibers. The hybrid design combines a secant ogive (VLD-style) profile in the front of the bullet, with a tangent profile further back. This gives bullets the high BC of the VLD-style bullets, but the tangent section makes the bullets less sensitive to small variations in seating depth. The tangent ogive is a more gentle curve. Tangent ogive bullets, generally speaking, are more “forgiving” or easier to tune. They also will stay in tune better as a barrel throat erodes.
What Berger has done with the hybrid bullet is put an easy-tuning geometry on the part of the bullet that actually engages the rifling, while using a more streamlined front end for improved ballistics. This hybrid design was introduced in 2010 with hybrid 7mm and .338 bullets. Both new hybrid designs proved very successful. The hybrid designs were developed with significant design input from Bryan Litz, Berger’s ballistician. Before Bryan signed on with Berger, he literally worked as a rocket scientist, so he knows something about low-drag shapes. In the video below, Bryan explains why Berger will introduced more hybrid bullets in more calibers, in the months ahead. Bryan also talks about other products Berger has in the works, including its much-awaited reloading manual.
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We know many of our readers aren’t 100% clear on the difference between a secant ogive bullet and a tangent ogive bullet. Add the “blended” or “hybrid” ogive into the design equation and you add to the confusion. In this article, Berger Ballistician Bryan Litz, explains the characteristics of the three popular ogive types: tangent, secant, and hybrid.
Hybrid Bullet Design — Best of Both Worlds?
They have been on the market for nearly a year, but you may not know that Redding sells a line of 
That’s right, Redding now offers micrometer seater assemblies made specifically for Berger VLD bullets. These Seating Micrometers allow you to convert a standard seater to a Micrometer seater optimized for VLDs. That’s great news for VLD fans. Eric Stecker of Berger Bullets tells us: “We have confirmed with Redding that each of the new micrometer plugs in the VLD group were designed based on Berger VLD bullets. We provided all of our VLD bullets to Redding, from which they took deliberate measurements and made these new plugs.”
“The agreement with Berger Bullets allows us to offer some of the best projectiles available for use in our precision ammunition,” said Brad Angus, President of Setpoint Ammunition. Angus went on to say that this agreement has been anticipated for some time. “Teaming with Berger has always been one of our goals. When you combine the well-known reputation of Berger Bullets with the unprecedented precision that we’ve built into our ammunition loading process, you get the best custom rifle ammunition available on the commercial market today.”
Redding has introduced a new series of Bullet Seating Micrometers (aka Micrometer Bullet Seater Plug Replacements). These can be retro-fitted into standard Redding seater dies with 1/2-20 thousandths threads, replacing the standard dies’ seater plugs. So, for about forty bucks, you can now make your standard Redding seater die into a Micrometer Seater — and you can swap one Micrometer Seater top among a variety of dies in the same caliber class (such as .223 to 22-250). Notably, the new Bullet Seating Micrometers are offered in two different configurations — one for traditional bullet shapes, and another for VLD bullets. Redding’s new Bullet Seating Micrometers are priced at $48.90 MSRP, but expect to see an initial “street price” of about $37.00-$39.00.
