Bryan Litz and The Science of Accuracy Academy delivered a notable Podcast with vital information for all handloaders. This Podcast examines the effects of humidity variances on powder. Bryan notes: “If you want to know how much this can matter, we’re talking up to 200 fps difference for the same load of H4350 in 6.5 Creedmoor” at opposite extremes of humidity.
Bryan adds that “Most shooters don’t realize what a big deal this can be — it overshadows many of our efforts to make consistent velocity and hit targets. This can happen in loaded rounds not just for hand loading where you expose powder to ambient humidity. This is especially important for hunters considering the range of environments hunting ammo goes through.”
CLICK the above graphic to access first half of Podcast for free.
BONUS — Four More Science of Accuracy Podcasts
Here are four more of our favorite Podcasts from Bryan Litz’s Science of Accuracy Academy. Click on each item to hear the first half of each podcast for free.
Want More? Subscribe to The Science of Accuracy Academy
If you’d like to benefit from hearing ALL the full-length Science of Accuracy Academy Podcasts you can get a subscription to the Academy for just $9.95 per month. This grants you access to all Podcasts, exclusive videos, learning resources, and bullet data sheets.
“The press is the heart of the handloading operation, also traditionally the most expensive single tool employed…” — Laurie Holland
British competitive shooter Laurie Holland has reviewed three popular, single-stage reloading presses for Target Shooter Magazine (targetshooter.co.uk). Laurie bolted up a Forster Co-Ax, RCBS Rock Chucker Supreme, and RCBS Summit to his reloading bench and put the three presses through their paces. These three machines are very different in design and operation. The venerable Rock Chucker is a classic heavy, cast-iron “O”- type press that offers lots of leverage for tough jobs. The smaller RCBS Summit press is an innovative “upside-down” design with a large center column and open front. It offers a small footprint and easy case access from the front. The Co-Ax is unique in many respects — dies slide in and out of the upper section which allows them to “float”. The cartridge case is held in the lower section by spring-loaded jaws rather than a conventional shell-holder.
If you are considering purchasing any one of these three presses, you should read Laurie’s article start to finish. He reviews the pros and cons of each press, after processing three different brands of brass on each machine. He discusses ergonomics, easy of use, press leverage, smoothness, priming function, and (most importantly), the ability to produce straight ammo with low run-out. The review includes interesting data on case-neck run-out (TIR) for RWS, Federal, and Norma 7x57mm brass.
Review Quick Highlights:
RCBS Rock Chucker Supreme
“My expectations of the antediluvian RCBS Rock Chucker Supreme’s performance weren’t over high to be honest as I mounted it in the place of the Summit. As soon as I sized the first of the stretched RWS cases though, I saw why this press has been such a long-running favorite. The workload was considerably reduced compared to the other two presses and doing 40-odd cases took no time at all with little sweat — it just eats hard-to-size brass.”
RCBS Summit Press
“Despite its massive build and long-stroke operating handle, [the Summit] took more sweat than I’d expected, even if it was somewhat less work than with the Co-Ax. Although the Summit is apparently massive, I noticed that the die platform would tilt fractionally under the heaviest strains[.] It is nevertheless a very pleasant press in use and bullet seating was a doddle — the few examples tried proving very concentric on checking them afterwards. The optional short handle would be valuable for this task.”
Forster Co-Ax
“[On the Co-Ax], the operating handle is above the machine, located centrally [with] twin steel links at the top end of the press dropping down to the moving parts. The Co-Ax incorporates [many] novel features, principally its automatic and multi-case compatible shell-holder assembly with spring-loaded sliding jaws, very neat spent primer arrangements that allow hardly any gritty residues to escape and foul the moving parts and, the snap-in/out die fitment that allows rapid changes and lets the die ‘float’ in relation to the case giving very concentric results. I own this press and it meets my handloading needs very well.”
For some applications, we prefer a non-bushing FL die over a bushing die. Shown here are three Forster full-length sizing dies, with necks honed to three different dimensions: 0.265″, 0.266″, and 0.267″.
The Honed Full-Length Sizing Die Option
There are many good options in full-length (FL) sizing dies. Most precision hand-loaders prefer FL dies with neck bushings. These let you adjust the “grip” on your bullet by using larger or smaller bushings. FL bushing dies are available from Whidden Gunworks, Forster, Redding and other makers.
Conventional, non-bushing full-length sizing dies can create ultra-accurate ammo with very low run-out. But many conventional non-bushing FL dies have an undersized neck diameter so you end up with excess neck tension, and you work the brass excessively.
There is another effective option, one that promises extremely low run-out. The honed FL die is a full-length sizing die that has the necked honed to provide a precise fit to the case-neck. When done right, honed FL dies produce extremely straight ammo — as there are no issues with bushing alignment (or bushings that are not perfectly concentric). This Editor owns honed dies from Forster, Redding, and Whidden Gunworks. They all perform extremely well, delivering match ammunition with extremely low run-out measured with a 21st Century Concentricity Gauge.
In one of the most popular articles we’ve ever published, Bugholes from Bipod, California shooter “Froggy” explained why he prefers honed dies for his tactical ammo.
Q: Do you FL size every time? Do you use custom dies?
Absolutely, I full length resize all of my brass every time I reload. And guess what? I’ve never had a feeding problem.
I do use a modified sizing die, without bushings. My FL resizing die has been custom-honed in the neck area to give .0015″ press fit on the bullet. I also put a slightly larger radius at the neck shoulder junction. I feel that this helps to seal the chamber. With this die, I get consistent neck tension every time–without bushings. Bushings are useful when you’re fishing around for a good load. But once you find the right amount of sizing for ideal neck tension, you can do this better with a customized FL die.
6.5 Guys Review Forster Honed Full-length Dies
The 6.5 Guys have reviewed honed FL sizing dies from Forster, explaining the pros and cons of this type of reloading die. They explained that, if you load a wide variety of bullets from different manufacturers, you many want to stick with a Bushing FL die. However, if you have settled on a particular bullet and found the “ideal” neck tension, then a honed die may make sense.
In this Gear Update, the 6.5 Guys discuss a service offered by Forster Products to custom hone the neck diameter of its full-length sizing dies to the customer’s specifications (to the thousandth). Whidden Gunworks also offers custom-honed FL dies.
This article is Copyright 2023 AccurateShooter.com. Any publication on another website is unauthorized and obligates monetary compensation and statutory damages.
Need some informative reading material for winter days? Here’s a vast resource available free from Sierra Bullets. Here are links to over 60 articles with information on bullets, ballistic coefficients, wind drift, up/down angles, temperature effects, tailwind effects and much more. Most of these resources come from the respected Sierra Reloading Manuals, 4th and 5th Editions. There are enough articles to read one per week for a year!
The U.S. Army Marksmanship Unit regularly publishes reloading “how-to” articles on the USAMU Facebook page. One very good article, part 5 of a 6-part series, focused on Progressive Presses. This article explains proper procedures for Auto-Indexing Progressives, which advance the shell-plate with every pull of the handle. Auto Progressives are very efficient, but they also require special attention and focus, because so many things are happening at once. You need to train yourself to watch every station. If you run a progressive press now, or are considering getting a progressive, we recommend you read this article. Visit the USAMU Facebook page for other helpful handloading guidance.
Progressive Loading Presses — Self-Advancing Shellplate Type
Recently, we addressed manually-operated progressive presses for the beginning handloader. This type press requires one to manually advance the shellplate after each handle stroke. An advantage for beginners is that nothing happens at any station until the loader wants it to. This helps users avoid problems from clearing malfunctions without noticing that the shellplate has advanced itself. (Read Previous USAMU Article on Manual Progressives.)
The next, more luxurious type progressive press advances the shellplate automatically whenever the handle is cycled. [Editor: This is also called an “Auto-Indexing” Progressive Press.] Typically, each stroke automatically sizes and primes a case, operates the powder measure (if used) and seats a bullet. Some also have case feeders that automatically put a new case in the shellplate with every cycle. Others require the loader to insert a case each cycle. With both types, the loader usually puts a bullet on each sized/primed/charged case.
[CAVEAT: While our Handloading Shop has several progressive presses, ALL of our powder charges are thrown/weighed by hand. We do not use powder measures on our presses. Our progressives are used for brass preparation, priming, seating, etc., but not for fully-progressive loading.]
The manually-advanced press can be a boon to beginners, but as one gains experience it can be a mixed blessing, depending on one’s style. If one pays close attention to every operation and loads without distractions, the manual press is very reliable and allows full scrutiny of each round as it is loaded. However, if one easily drifts into day-dreaming, or isn’t focused on paying careful attention at all times, the manual progressive can be a bit of a liability. The opportunity for forgetting a powder charge, leading to a squib load, is ever-present. [Editor: A lock-out die can help reduce the risk of a squib load, or a double-charge. See below.]
The automatically-advancing progressives help prevent this by ensuring a powder charge will be dropped each time the handle is operated. Experienced handloaders often appreciate this feature due to the savings of time and effort. Individual preferences between the two press styles are influenced by several factors. These include one’s comfort with more- vs. less-complicated mechanisms, how often one changes calibers (case feeders often must be converted, in addition to dies and shellplates), how many rounds one loads annually, relative ease of changing primer mechanisms from small to large, etc. Automatic progressives and their caliber conversion kits tend to be significantly more expensive than manual progressives and caliber conversions from the same maker.
One USAMU handloader, who likes simple, bullet-proof machines and maximum efficiency when converting presses, owns two manually-advanced progressives. One is set up for large primers, and the other for small primers. He can change calibers in the twinkling of an eye. As he loads for many different calibers, this fits his style. Another handloader here is just the opposite. He loads for a few calibers, but in larger quantities. He much prefers his self-advancing press with case-feeder for its speed. He makes large lots of ammo in a given caliber before switching, to improve overall efficiency. His caliber conversion kits are more expensive than those for the manually-advanced progressive, but he uses fewer of them.
Whichever type one chooses, it is VERY important to buy quality gear from a manufacturer with a long, well-established track record for quality, durability and good customer support. Avoid jumping on the “latest, greatest” model until it has a proven track record. For example, this writer knows a loader who got a brand-new, expensive, self-advancing model press some years back, shortly after its introduction. As is too often the case these days, the manufacturer released it before all the “bugs” were worked out.
Better Safe Than Sorry — the RCBS Lock-Out Die
RCBS Makes a “Lock-Out Die” that senses the powder charge. This will halt the Progressive press if you have a double charge, or an undercharge. Your Editor has the Lock-Out Die on his RCBS Pro 2000. It has “saved his bacon” a half-dozen times over the years. It can be used on Dillon and Hornady progressives as well as RCBS machines.
It would not fully seat primers to the correct depth. No amount of adjustment, extra force, or fiddling would do better than to seat primers barely flush with the case head. Any inattention could result in a slightly “high” primer, protruding above the case head. It created a risk for slam-fires, particularly in semi-autos without spring-retracted firing pins, such as the M1 or M1A. In desperation, he had a machinist buddy study the problem and machine a new part to correct it. No dice. Its engineering didn’t permit full primer seating, even with extended parts. He now wishes he’d heeded his shooting buddies’ advice to stick with the “tried and true,” reliable performer they all used.
Whichever press one selects, see if the maker has a kit or list of commonly-replaced parts. Having needed springs, pins, etc. on hand in the rare event that one breaks or “goes missing” can save the day when one is busy loading for a match! Another tip for improving one’s overall loading efficiency (rounds loaded with minimal set-up/tear-down time) is to plan one’s handloading by primer size. For example, if your machine is set to use small primers, load all the calibers that you intend to that take small primers, before converting the press to load large-primer calibers.
In our next chapter, we’ll discuss peculiarities of progressive loading for rifle cartridges, with remedies for problems such as excessive cartridge-case headspace variation when sizing, tips for ensuring best powder charge consistency, and so on. Until then, be safe, and good shooting!
Do you ever use military-style brass with swaged primer pockets? Then you can really benefit from the special LEE Ram Swage tool. This innovative swaging tool provides a fast, simple, and efficient method of removing the primer pocket crimp on milsurp brass.
Primer pocket swaging is necessary when reloading brass with crimped primer pockets. Many brands of brass for military (and some law enforcement) applications have this crimp. You may find such primer pocket crimps on a variety of milsurp brass types including: 9mm Luger, LEO .40 S&W, .45 ACP, .223 Rem (5.56×45), .308 Win (7.62×51), and .30-06 Springfield, as well as older European cartridge types such as 6.5×55. If you use a progressive press, this new LEE Ram Swage is a boon. Nothing reduces priming problems on a progressive press more than properly swaged primer pockets.
Why use milsurp brass? Surplus military and police department brass is a great low cost source of cases. It is typically very strong, long-lasting, and can often be acquired for a fraction of the cost of new commercial brass. For example, Lake City 7.62×51 (.308 Win) brass is excellent.
Note: This tool is designed for Boxer-primed cases only, not cases with Berdan Primers.
The Lee Ram Swage works on all single stage presses with 7/8″-14 frame threads, and rams which take common “universal” shell-holders. This new tool features spring-assisted case extraction, and an all-steel case guide. This ensures that your cases will be positively centered on the push rod. The swage holder, large or small, installs in seconds into your press ram with no adjustments required.
LEE’s engineers devised a clever “Shell-holderless design” for the LEE Ram Swage. This allows you to swage any small or large primer pocket, without swapping to a different size shell-holder. The hardened steel swage punch is automatically extracted from the primer pocket by five disc springs. The complete LEE Ram Swage set includes one guided 7/8″-14 threaded swage push die, with both large and small ram swage holder assemblies.
He who dies with the most toys wins — right? Well Sinclair has another interesting gadget you can add to your reloading bench. The Sinclair Case Neck Sorting Tool lets you quickly sort brass by neck-wall thickness. For those who shoot “no-turn” brass, this can improve neck-tension consistency. Large variances in neck-wall thickness can cause inconsistent neck “grip” on the bullet. Generally, we’ve found that more consistent neck tension will lower ES and (usually) improve accuracy. We know some guys who shoot no-turn 6mmBR brass in competition with considerable success — but their secret is pre-sorting their brass by neck-wall thickness. Cases that are out-of-spec are set aside for sighters (or are later skim-turned).
Watch Case Neck Sorting Tool Operation in Video
How the Case Neck Sorting Tool Works
Here’s how the Sinclair tool works. Cases are rotated under an indicator tip while they are supported on a case-neck pilot and a support pin through the flash hole. The unit has a nice, wide base and low profile so it is stable in use. The tool works for .22 through .45 caliber cases and can be used on .17- and .20-caliber cases with the optional carbide alignment rod. The MIC-4 pin fits both .060 (PPC size) and .080 (standard size) flash holes. Sinclair’s Case Neck Sorting Tool can be ordered with or without a dial indicator. The basic unit without dial indicator (item item 749006612) is priced at $59.99. With this standard tool you can use your own dial indicator with standard specifications. You can also buy the tool complete with dial indicator (item 749007129) for $89.99 (but not currently in stock). IMPORTANT: This sorting tool requires caliber-specific Case Neck Pilots which must be ordered separately.
Editor’s Comment: The purpose of this Sinclair tool is rapid, high-quantity sorting of cartridge brass to ascertain significant case-neck-wall thickness variations. Consider this a rapid culling/sorting tool. If you are turning your necks, you will still need a quality ball micrometer tool to measure neck-wall thickness (to .0005) before and after neck-turning operations.
Brownells is a well-known retailer of guns, gun parts, tools, accessories, ammo, and pretty much everything gun related. Brownells has a very active video production department that releases new “how-to” and product information videos every week. These videos offer helpful advice on gun cleaning/maintenance, reloading, as well as selecting/assembling components for various kinds of rifles. There now over 1000 videos on the Brownells YouTube Channel, this really is a remarkable resource.
One of our favorite regular Brownells video features are the Quick Tip Cartridge Comparisons. Brownells tech staffers look at a pair of cartridge types and reveal the noteworthy differences. Here are three recent Cartridge Comparison videos from Brownells.
6.5 Creedmoor vs. .260 Remington
Brownells Gun Tech Caleb Savant compares and contrasts the 6.5 Creedmoor rifle cartridge with the older .260 Remington. Both cartridges are often loaded to nearly the same overall length (OAL), but with more of the bullet inside the neck for the .260 Rem. The .260 Remington is basically a .308 Winchester necked down to 6.5mm (.264″). The 6.5 Creedmoor has a shorter case, with a more modern 30-degree shoulder angle. With the same cartridge OAL, that can make it possible to load longer-ogive, higher-BC bullets. However, with a long-freebore chamber, the .260 Rem can certainly run any high-BC 6.5mm bullet made.
The .260 Remington can, theoretically, generate a bit more velocity at the muzzle because its longer case holds a bit more powder. However, with high-quality Lapua brass, in the real world, the 6.5 Creedmoor comes pretty darn close to .260 Rem performance with any given bullet weight. Moreover, the 6.5 Creedmoor is available with small primer pocket brass from Lapua. This brass may give a higher number of reloading cycles before case-head expansion becomes a problem. For the hunter, both choices are good, but the older .260 Rem may feed a bit better from a magazine, given the .260’s case taper and longer body. Overall, we favor the 6.5 Creedmoor for its versatility and efficiency, but the .260 Rem is a good cartridge too.
6.8 SPC vs. 6.5 Grendel
Brownells Gun Tech Caleb Savant compares two medium-caliber cartridges that can work in AR15-platform rifles: the 6.5 Grendel and the 6.8 SPC (aka 6.8mm Remington “Special Purpose Cartridge”). The 6.5 Grendel is typically loaded with a high-BC .264″ bullet, while the 6.8 SPC has a larger-diameter .277″ bullet. Both have the same 2.26″ OAL as the AR-15’s standard .223 Remington / 5.56 NATO round. The big difference is the 6.5 Grendel’s faster velocity and flatter trajectory. With the same bullet weight, Brownells says the 6.5 Grendel will be about 100 fps faster than the 6.8 SPC. Given a 100-yard zero, the 6.5 Grendel will drop about 8.5″ at 300 yards, while the 6.8 SPC will drop 10.5″ at the same range. The 6.5 Grendel is probably a better choice for long-range targets, at least when loaded with a higher-BC bullet. A big difference is brass. You can get superb Lapua brass for the 6.5 Grendel. Not so for the 6.8 SPC, which really has never developed into a widely popular accuracy round.
7.62×51 NATO vs. .308 Winchester (Subtle differences)
Brownells Technician Caleb Savant talks about the .308 Winchester and 7.62x51mm NATO. Most shooters know that both rounds have the same external dimensions. In fact, the military 7.62×51 was developed from the civilian .308 Winchester. So… can they be used interchangeably? The 7.62×51 cartridge normally can be fired from any rifle chambered in .308 Winchester because the 7.62 is spec’d for a lower pressure than SAAMI max in the .308 Win. However, we have encountered some British and Austrian 7.62×51 NATO milsurp ammo that was VERY hot — more than a typical commercial .308 Win Load. Accordingly you should always be careful when shooting new 7.62×51 ammo in your rifles. Likewise you should be careful about shooting higher-pressure .308 Win in some 7.62 NATO rifles. The 7.62×51 NATO chamber is slightly longer, and the cartridge’s case is typically a bit thicker, so it will “flow” and expand into the extra space. NOTE: Some newer rifles with 7.62×51 NATO chambers ARE made to handle .308 Win ammo. Check the owner’s manual or contact your rifle’s manufacturer to find out for sure.
.44 Magnum vs. .45 Long Colt — Great Wheelgun Cartridges
Brownells Gun Tech Steve Ostrem does a quick compare-and-contrast of the .44 Magnum and .45 Long Colt — two of the most popular revolver cartridges. The .45 LC debuted in the 1870s, when the steel used in revolvers was much weaker than modern steel, so it’s typically loaded as a low-pressure cartridge. The .44 Magnum was developed in the 1950s specifically for hunting, and stronger modern gun steels meant revolvers could be built to handle its much greater pressures. Full-power commercial .44 Magnum ammunition tends to be easier to find. The .45 Colt you find at the gun store is loaded mildly so folks don’t blow up their vintage revolvers! BOTH cartridges are great for handloading because they have straight-wall cases and can handle a wide variety of powders and bullet weights. Dies, brass, and bullets are readily available for both. If you don’t handload but want a hunting revolver, .44 Magnum is the better choice, as there’s more FULL-power factory ammo available.
If this article has got you thinking about loading for a new cartridge type or perhaps getting a new gun, head over to Brownells and enjoy the HoliDeals sale event going on right now. You can save from 10-50% on popular products including scopes, reloading presses, AR uppers and lowers, and many other items.
Make Your Own Length-to-Lands Gauge to Check Bullet Position
Here’s a tip we feature every year or so, because it is something that costs nothing, yet can be very useful in the reloading process. With a simple, easy modification to a fired case, you can determine the length to lands in your rifle barrel. As long as you set the tension right, the measurements should be repeatable, and you’ve just saved yourself $47.98 — the combined cost of a Hornady C-1000 commercial OAL gauge ($41.99) and Modified Case ($5.99).
To achieve best accuracy with a rifle, you must control bullet seating depth very precisely, so all bullets end up in the same place relative to the entrance of the lands, every time. There may be multiple cartridge OALs which prove accurate. However, with each, you first need to determine a “zero” point — a reliable, and repeatable OAL where the bullet is “just touching” the lands.
There are tools, such as the Hornady (formerly Stoney Point) OAL Gauge, that will help you find a seating OAL just touching the lands. However, the tool requires that you use a special modified case for each cartridge you shoot. And, while we find that the Hornady OAL Gauge is repeatable, it does take some practice to get in right.
Make Your Own Length-to-Lands Gauge with a Dremel
Here’s an inexpensive alternative to the Hornady OAL tool — a slotted case. Forum member Andris Silins explais how to create a slotted case to measure length to the lands in your rifle:
“Here’s what I did to find length to lands for seating my bullets. I made four cuts into the neck of fire-formed brass. Then I pressed the bullet in lightly and chambered the entire gauge. As the cartridge chambers, the bullet slides back into the case to give you length to lands. It took less than five minutes to get it cut and working. A little light oil in the barrel just past the chamber helps ensure the bullet does not get stuck in the lands. It works great and is very accurate.
How to Adjust Tension — Length and Number of Neck Cuts
I made the cuts using a Dremel with a cut-off wheel. You can adjust tension two ways. First, you can make the cuts longer or shorter. Longer cuts = less tension. If you used only three cuts instead of four you would get more tension. The trick is to be gentle when you open and close the bolt. If you ram the bolt closed you may wedge the bullet into the lands. When you open the bolt it helps to keep a finger or two near by to guide the case out straight because the ejector wants to push it sideways.”
Every serious hand-loader benefits from a precise, repeatable, and efficient powder dispensing system. There are many electronic powder dispensers on the market, starting at about $195 for a Frankford Arsenal Intellidropper and $240 for a Lyman Gen6. At the high end, the ultimate powder weighing/dispensing system would be an Auto-Trickler V4 mated to an top-tier electronic Force Restoration scale. Such a system can run $1200 or more, depending on scale cost.
In today’s Saturday video showcase we feature eight videos about electronic powder dispensers, as well as Auto-Trickler systems (both V3 and V4). If you are in the market for a new powder scale/dispenser system, we recommend you watch these videos. You may be surprised by some of the findings, and you will certainly learn more about these machines — their pros and cons. That knowledge can help you decide what electronic powder dispenser best deserves your hard-earned dollars.
Five Powder Dispenser Comparison Test (All Units Purchased)
If you are in the market for a sub-$500 electronic powder dispenser, definitely watch this review. This Backfire comparison test is notable because the tester spent his own money to purchase all five powder dispensers being reviewed. That means Backfire could tell the full truth, both good and bad, about the machines. In fact, Backfire bought TWO ChargeMaster Lites because one failed (See 14:12 time-mark). The reviewer liked the RCBS ChargeMaster Supreme, but his top choice overall was the Hornady Auto Charge Pro. He favored the overall design, and really liked the way the dispensing speeds could be easily set faster or slower. Here are highlights from the video review:
00:08 Speed Test
03:09 Accuracy Test
07:57 Frankford Arsenal Intellidropper
09:08 Lyman Gen 6
10:44 RCBS Chargemaster Supreme
12:03 Hornady Auto Charge Pro
14:12 RCBS Chargemaster Lite
14:41 Conclusions
AutoTrickler V3 vs. Hornady Auto Charge Pro
In the Backfire comparison video above, the Hornady Auto Charge Pro powder dispenser earned top marks among sub-$500 units. Here the Auto Charge takes on some tougher competition — an ultra-precise Force Restoration scale fitted with an Auto-Trickler V3, a system that cost upwards of $1150.00 U.S. Dollars. The Australian duo running the comparison found the Auto-Trickler system was more accurate and consistent. Notably, with a dispense speed of just 14 seconds. the Auto-Trickler V3 system was significantly faster than the Hornady machine. The Auto-Tricker V3 has been superseded by the new Auto-Trickler V4 which retails for $490.00 USD. Add $630 or more for a good Force Restoration scale such as the A&D FX-120i.
RCBS New ChargeMaster Supreme and Other ChargeMasters
In this well-made video, Gavin Gear of UltimateReloader.com does a detailed review of the new-generation RCBS ChargeMaster Supreme. He puts it through his paces, verifying its accuracy and repeatability. He shows how the unit can be programmed. At the 17:20 time-mark, Gavin employs an A&D FX-120i Force Restoration scale to check the ChargeMaster Supreme’s charge-weighing precision. The results were good.
Frankford Arsenal Intellidropper vs. RCBS ChargeMaster Link
The Frankford Arsenal Intellidropper, now just $194.49 on Amazon, was very innovative when first released, offering remote Bluetooth access and a wide range of programmable features. The downloadable App stores your load data and has preloaded bullet and powder databases. This video compares the Intellidropper with another Bluetooth-enabled modern powder dispenser, the RCBS Chargemaster Link. A free RCBS App allows you to control settings remotely.
Hornady Auto Charge Pro Review by Ultimate Reloader
As the $359 Hornady Auto Charge Pro dispenser was top-rated in the Backfire comparison at the start of this article, we thought we’d include a detailed review from Gavin Gear of UltimateReloader.com. If you are thinking of buying a Hornady Auto Charge Pro, definitely watch this video, as it is the most thorough Auto Charge Pro review on the web and Gavin is by far the most articulate tester. SEE FULL TEST.
AutoTrickler V4 and Force Restoration Scale
The AutoTrickler V4, paired with a quality Force Restoration scale, is the “Rolls Royce” of electronic powder dispensing systems, offering unrivaled charge-weight accuracy, great repeatability, and ultra-fast dispensing speeds. If you have the budget — $490 for the V4 plus $625+ for scale — the AutoTrickler V4 is a superb system that lets you load extremely accurate, consistent ammo. This detailed F-Class John video shows how to set up the system properly and control the dispensing and trickling functions.
RCBS MatchMaster vs. AutoTrickler V3 with A&D FX-120i Scale
This video is interesting because it compares the most advanced and expensive mass-market electronic dispenser, the $899 RCBS MatchMaster, with an AutoTrickler V3 mated to an ultra-precise Force Restoration scale. The AutoTrickler V3 + scale system offers wicked fast dispensing while delivering near-single-kernel precision and great repeatability. The MatchMaster has some interesting features, including dual dispensing tubes and a special slower, “Match Mode” dispensing function which provides enhanced precision.
BONUS Video: RCBS ChargeMaster Dispenser vs. Four Scales
This video answers the question “How does a common powder dispenser’s weighing accuracy compare to stand-alone scales?” Here the tester compares the weighing precision of an early-model RCBS ChargeMaster with four dedicated scales: A&D FX-120i (Force Restoration), Hornady G2-1500, Hornady GS-1500 (Gen 1), and a WAOAW milligram scale. These scales range significantly in price, with the FX-120i Force Restoration the most expensive by far. The features/prices of the four scales are listed at 4:41 time-mark. Accuracy/repeatability comparison testing with test weights starts at 10:12 time-mark.
Review Quick Highlights:
The 
He who dies with the most toys wins — right? Well Sinclair has another interesting gadget you can add to your reloading bench. The Sinclair 
