On our main Accurateshooter.com website, you’ll find a comprehensive review of the STM system for cleaning cartridge brass with stainless media. To clean brass with stainless media, start with five pounds of small stainless pins sold by StainlessTumblingMedia.com. Place these along with a gallon of water, a little liquid cleaner, and two pounds of cartridge brass in a rotary tumbler, and run the machine for one to four hours.
Forum Member Tests STM System
Our reviewer, Forum member Jason Koplin, purchased the STM media and a new Thumler’s Tumbler. He then tested the STM cleaning procedure on his own brass, including some extremely dirty and tarnished “range pick-up” brass. Jason was thoroughly impressed with how well the STM process worked — as you can see from the “before and after” photos below. Brass which looked like it was ready for the scrap heap was restored to “like-new” appearance. The process works equally well on both rifle brass and pistol brass. Jason observed that one surprise benefit of the STM cleaning procedure is a big reduction in noise. Jason said the water-filled rotary tumbler was much quieter than his vibratory tumblers.
You’ll want to read Jason’s full review which shows more before and after images. In addition, the full article features a “how-to” video created by Forum member Cory Dickerson, the young man who pioneered the stainless tumbling process and founded STM. The video shows how to load brass, media, and cleaner solutions into the tumbler, and how to separate media from brass once the tumbling is done. The illustration below shows how to access the article from our new home page. Note that you can click on other featured articles as well.
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Cabela’s is running a nice promotion now on its Cabelas.com website. Reloading components, including bullets, brass, powder, and primers, are now discounted 20%. Plus there are even great savings on some products listed in Cabela’s Bargain Cave. To see the discounted items, visit Cabela’s Reloading Components SALE Page.
Here are some of the hundreds of products currently On Sale at 20% Off:
Story Tip by EdLongrange. We welcome reader submissions.
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MidwayUSA has the Tipton 12-piece multi-caliber Jag Kit on sale again. Now through Sept. 30th, you can purchase the Kit, item 582621, for $12.99, five bucks off the regular $17.99 price. The set includes 17, 22, 243/6mm, 25, 270/7mm, 30/32, 8mm/338, 35/9mm, 375, 40/416, 44, and 45 Caliber Jags, in a sturdy box with fitted holes for each jag. This Editor owns two Tipton jag kits, one for the range kit and one for the loading room. These kits work for everything from my 17 Mach2 up to my 45/70. I use the jags for both rifle and pistol calibers. I like the fact that you can easily switch from a bigger jag to the next smaller size to adjust patch fit as the job requires.
Nickel-Plated Jag Kit Also Available
MidwayUSA also markets a 12-piece Jag Set with nickel-plated jags. This is a smart innovation that has been well-received by shooters. The nickel jags aren’t affected by solvents so they don’t give “false positives” when you’re cleaning copper fouling from your barrels. The Nickel Jag Kit, item 812503, is currently priced at $24.49, but, it also goes on sale from time to time. When it’s on sale, you can pick up the Nickel-Plated Jag Kit for under $20.00.
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With top-quality cartridge brass approaching $1.00 per case, it’s more important than ever to get maximum life from your match brass. Annealing can extend the useful life of your brass, and ultrasonic cleaning allows you to eliminate carbon build-up inside cases that have been fired numerous times. You can certainly do annealing and ultrasonic cleaning yourself, but to get the best (and most consistent) results, you’ll need to invest in quality equipment and spend a good deal of time and effort learning how to use it properly. Likewise, turning case necks requires expensive tools, and it takes time and practice before you’ll get perfectly-turned necks.
DJs Brass Offers Annealing, Cleaning, and Neck-Turning
If you don’t have the resources to purchase annealing and ultrasonic cleaning machines, or if you don’t have the time to neck-turn hundreds of cases — don’t fret, there is an affordable option. DJsBrass.com, run by benchrest shooter Darrell Jones, offers annealing, ultrasonic cleaning, neck-turning, and complete brass prep services (including OAL trimming) at very reasonable rates. Darrell will anneal 100 cases for $15, and he’ll neck-turn your cases (any caliber), starting at $30.00 per hundred. Even if you’re a skilled neck-turner, if you just acquired a new caliber, it might make sense to send the work to Darrell, instead of purchasing new expander mandrels and turning arbors.
False-Shoulder Forming for Wildcats
Do you shoot an “improved” short-necked wildcat like the 6mm Dasher? Want your fire-forming to go without a hitch? Darrell can take your parent brass and create a false shoulder so you get a good crush fit in the chamber. If you’re running a tight-necked chamber he can create a false shoulder AND turn the top half of the neck to fit your chamber.
Video Shows Annealing Process
In the video below, Darrell explains the wide variety of brass restoration services he offers. Darrell says he can “bring your brass back to life” and we have found that to be true. We had some 6mmBR brass with no-turn necks that started to lose their “competitive edge” after just 7-8 loadings. The neck tension had become inconsistent from case to case, and bullet seating force (measured with a gauge-equipped K&M arbor press) varied widely. We were seeing unexplained flyers, and ES had nearly doubled compared to when the brass was fresh. Annealing the cases really made a difference. The neck tension was much more consistent and bullets seated more uniformly with less “spiking” of seating force. Paying $15 for annealing is a lot cheaper than buying a new box of brass for $80.00 or more!
Darrell offers a variety of services at affordable rates. To order work by Darrell, visit DJsBrass.com, or call (205) 461-4680:
Case Annealing Only
Cost: $15.00/100 for standard cases; $20.00/100 for magnum cases.*
Combination Service (Cleaning and Annealing)
Ultrasonic Cleaning, Check for split necks, Anneal case necks.
Cost: Starting at $20.00/100 standard and $25.00/100 for magnum cases.*
Full Service (Case Prep, Cleaning, Annealing)
Uniform primer pockets, Chamfer, Ultrasonic cleaning/polishing, Anneal case necks.
Cost: Starting at $30.00/100 and up.*
Neck Turning or Trim-to-Length Custom Order Service
Cost: Starting at $30.00/100 for standard cases.*
(Darrell can also resize necks or false shoulder your cases. Call for quotes.)
*Add USPS flat-rate return shipping. Call (205) 461-4680 for quotes on miscellaneous, military bulk brass or high volume discount. Note: Prices subject to change.
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Dispelling Some 6mm BRX Myths, by Robert Whitley
I recently had an interesting and fact-filled conversation with Bob Crone (the inventor of the 6mm BRX) about his BRX. Bob actually called me because he was concerned that there are a lot of myths and about his 6mm BRX and he wanted to “set the record straight” on a few things. Here’s my summary of some topics we discussed:
Myth One:Bob made his 6mm BRX chamber by running a 6mm BR reamer in too deep.
Truth: There is no truth to Myth One. Bob said he specifically designed the BRX reamer and had it made with the head space he specified and a neck length appropriate for his newly designed 6mm BRX wildcat cartridge.
Myth Two:In the course of making up his 6mm BRX, Bob had a version with a .120″ longer head space than a 6mm BR Norma.
Truth: Bob was clear that his original design for the 6mm BRX always had a .100″ longer head space than a 6mm BR and that he never deviated from that. Right after Bob started working with his 6mm BRX, Bill Shehane came forward with a 6mm BRX version he made up that had a .120″ longer head space, and thus the confusion started. In truth, the original 6mm BRX always was (and still is) a chambering with a head space .100″ longer than a 6mm BR Norma.
Myth Three:The BRX was originally set up for 105-107gr bullets.
Truth: Bob said he set up his original reamer with a zero freebore and he has his gunsmith use a throater to throat whatever chamber was being made to where he wanted a particular bullet to touch the lands. Bob said he originally started with a 1:10″ twist barrel and shot a bunch of the 95gr VLDs and also 87gr bullets. Later he used an 8.5″ twist barrel for the heavier bullets.
Myth Four:The original BRX was set up also for use with Remington BR Brass.
Truth: Bob said he always used Lapua brass. He originally was an avid reader of Precision Shooting magazine and saw that the .262″ neck-turn neck was working real well with the 6 PPC and 6mm BR bench rest shooters and he decided to try to go with something that was already working well for 6mm shooters. He says his original reamer had a .262″ neck, but he also has a .272″ “no-neck-turn” version that he used on some of his rifles. He said the Lapua brass was so good and consistent, that for some rifles he just “didn’t want to mess with it” so he went with the “no-neck-turn” .272″ neck too.
Myth Five:The “false shoulder” method was used to make brass.
Truth: Bob said he never used the “false shoulder” method to make 6mm BRX brass, he just loaded 6mm BR brass with a bullet well into the lands of the BRX chamber and fire-formed brass that way. He noted that the accuracy with some of the fire-forming rounds was “outrageous” (i.e. outrageously good that is), so much so, they were shot in matches sometimes.
Myth Six:The 6mm BRX has a blown-out or straightened out body.
Truth: Bob said he kept the basic body taper of the 6mm BR cartridge. He wanted the cartridge to be an easy and inexpensive (but high performance) 6mm wildcat, and the original design was (and still is) set up to use readily available 6mm BR dies (up off the shell holder about .100″ from the normal position).
Author’s note: It was a most enjoyable experience to talk to Bob Crone. He is not only still passionate about his 6mm BRX, but he has a commanding knowledge of it as well.
Reamer Print provided by AR-X Enterprises LLC, www.6mmAR.com.
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Selection from BARNES BULLETS’ Tips, Tools, and Techniques by Ty Herring, Barnes Consumer Service
The purpose of this month’s Tip from Barnes is to make you aware of valid pressure signs in most centerfire rifle cartridges so you can keep yourself out of hot water. Following the Barnes Manual should do exactly that. Below are photos of cartridges that definitely had too much pressure. Fortunately [they] were fired in controlled circumstances and no one was injured. But this shows what can happen if you are not careful….
High-Tech Pressure Testing Equipment
At Barnes Bullets, we use some of the best equipment when we develop load data for you. Ours is state-of-the-art with a specialized “conformal” pressure system. This set-up uses a high-tech SAAMI-spec pressure barrel with a hole bored into the chamber area and a piezoelectric transducer is installed. As the pressure peaks under firing, the gauge that is specially calibrated reads the pressure and sends a signal to the control box where a technician can see the results.
For many years hand loaders have used the old fashioned trial and error method, hoping that by adding another grain of powder you don’t blow yourself up. Certain “guidelines” have been the standard — such as when the primer gets flat, or when the bolt locks up — you should stop and reduce the charge. These methods have worked for many, but some of them are more myth than reality. I’d like to go over some of these common pressure signs to help you avoid the pitfalls.
Pressure Signs That May Be Unreliable or Deceptive
When I first started hand loading centerfire rifle cartridges, I was told that when the primer flattens I should back the load down. This is one of those semi-myths. Some primers will flatten under high pressure and others will not. I’ve had some Remington primers that have blown right out of the case without ever showing any sign of flattening and on the other hand I’ve had Winchester primers that flatten with only a starting charge. I believe this to be a function of the thickness and hardness of the primer cup. The other myth that seems common is primer “cratering”. Cratering of the primer can be caused by a hot load. But it can also be a result of a slightly large firing pin hole in the bolt or a firing pin that is a bit too long or excessive headspace. Split or cracked cases are another area where it’s assumed that high pressure is the cause. Again this is only myth. Although it can be a result of high pressure — split or cracked cases are more likely caused due to a flaw in the case, improper head space or just simply from being sized and fired repetitively.
[Editor’s Note: Flattened Primers, Primer Cratering, and Cracked Cases CAN DEFINITELY BE CAUSED by excessive pressure. Accordingly, you SHOULD be careful when you see any of these conditions. If you see very flat primers or deep cratering be alerted that you may have exceeded safe pressures. Ty Herring simply makes the point that these telltale pressure signs may sometimes occur even when pressure levels are “normal” or moderate — due to the presence of other problems. Hence these indicators may be misleading. Nonetheless — all these signs (flattened primers, cratered primers, split cases) CAN be valid warnings. If you see these conditions, exercise caution because you may, in fact, have excessively hot loads.]
Valid Pressure Signs You Should Understand
So what are valid pressure signs? I’d say the most common and repeatable pressure sign that one can visually see is the “ejector groove mark”. It shows itself on the bottom of the case [between the edge of the rim and] the primer. It is caused when the pressures within the chamber force the case against the bolt face. On most bolt faces there is a round spring loaded ejector pin. On others there is a rectangular groove to eject the spent round. Under very high pressure the brass case will flow into this groove thereby causing the “ejector groove mark”. If and when you see this mark, it is a sure sign of high pressure. Some of the new high pressure cartridges such as the WSMs are made to run at these higher pressures and some factory loads will manifest the ejector groove mark even though they are within their pressure specification.
Older-Generation Cartridges
Some cartridges have very low maximum pressure ratings such as the 45-70, 30-30, 416 Rigby along with many others that will never show an ejector groove mark. Or should I say, they should never show one. By the time you reach that high of pressure in one of these rifles, it is likely the gun will be in pieces and the bolt may become part of you.
Sticky Bolt Lift and Difficult Extraction
Another common and very real high pressure sign is heavy or sticky bolt lift or extraction. This is caused due to the brass flowing and swelling in the chamber under tremendous pressure. However heavy bolt lift is not always a sign of high pressure. It may be caused by a variety of other issues. Knowing your gun and how it usually extracts a cartridge will be a clue as to whether or not you are actually getting high pressure.
This article appears courtesy Barnes Bullets. The article originally appear in the June 2011 Barnes Bullet-N Newsletter. Story tip from Edlongrange.
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German Salazar has posted an informative article about concentricity-checking tools on his Rifleman’s Journal Blog. In that article, German provides a detailed review of the impressive new Bruno Concentricity Checker which features a high-grade dial indicator and an innovative system for holding both loaded cartridges and empty brass in place during the measurement process. German gives the Bruno tool high marks and it is now his favored concentricity gauge, replacing on older Sinclair tool (also reviewed in the article).
German writes: “When measuring a seated bullet, the Bruno [tool] is simple and intuitive in use: adjust the length of the tip holder, set up the indicator to bear on the ogive and get to it. I usually slip a Sinclair hex nut comparator over a bullet to make a faint mark right at the ogive to help me in determining where to set the indicator. I then set the indicator tip about 0.010″ behind the mark so that I am definitely on the bearing surface even if some of the bullets have a bit of variance. It’s a handy way to get set up consistently from one session to another.”
German continues: “Reading an empty case requires a little more effort, but not much…. Once the case mouth is smooth, the readings are in line with those of the Sinclair tool, although easier to read to a fine level of precision due to the finer gradations on the indicator and its horizontal mounting. The Bruno tool has become my principal tool for checking the concentricity resulting from different die setups and for comparing the results of one loading process to another. I simply have more confidence in my ability to get an accurate reading from it. After many years of service, I’ve decided to retire the old Sinclair and make the Bruno tool my primary concentricity tool. It is simply a better made, easier-to-use, more accurate tool and those are the qualities I value in any tool.”
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Media Day at the Boulder City, Nevada range was a blast — literally. We had a chance to sample some big .338 Lapua Magnum rifles from Barrett and Sako. The recoil on the Sako TRG42 was epic, as it lacked a muzzle brake, and the front sandbag did nothing to tame rearward movement. We’ll provide more info on the TRG42 (and its new folding stock) later this week.
New Tikka T3 Sporter — Master Sporter Reborn
Tikka unveiled an interesting new T3 Sporter, fitted out in a handsome laminated position stock. This seems to be the successor to Tikka’s popular (but long since discontinued) Master Sporter series. We only hope Beretta, Tikka’s parent company, will eventually offer a wider selection of calibers — right now Beretta only plans to sell .223 Rem and 22-250 versions in the USA.
New Tikka T3 Sporter
MRAD is Impressive — and Brutally Expensive
Barrett’s new MRAD “adaptible” rifle was an impressive beast — as it should be at $6000.00 per unit. It did display some very clever engineering that allows a user to switch barrels and even change calibers with no gunsmithing. Check out the video for a review of the many unique features of the MRAD.
Crosman’s Computer-Controlled Airgun
Perhaps the most innovative (or at least technologically advanced) rifle on display wasn’t officially a “firearm” at all. Crosman’s new Benjamin Rogue, pneumatic varmint rifle actually has a microprocessor-controlled “fire control” system. Yes this state-of-the-art airgun actually has an internal computer that monitors the available air pressure, and sets the output level according to the bullet weight and desired velocity. This is no Daisy B-B gun — the Rogue is big and bulky. But it also delivers the hitting power of a 38 Special, all without a single kernel of gunpowder. Crosman’s Rogue will launch a 145gr polymer-tipped Nosler bullet at 850 fps. Just run the numbers and you’ll find the Rogue delivers as much terminal energy as many centerfire pistol cartridges.
Polymer Cartridge Casings from PCP
A Florida-based company, PCP Ammunition, unveiled a truly revolutionary product — polymer-cased ammo. The “cartridges” have a metal rim/base section (like shotgun shells) but nearly all the cartridge body is a tan-colored high-strength polymer. No, this product won’t do reloders much good, but it could be a huge “hit” with the military, as a polymer case is at least 25% lighter than brass. PCP Reps claimed that PCP’s plastic-bodied ammo can withstand loads that would be considered “full presure” in conventional brass. Stay tuned for further updates.
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For 2011 Nosler will introduce no less than 17 new NoslerCustom® brass offerings. Most of the 17 new brass varieties are for large hunting cartridge types, not widely used. However, target shooters may be interested in Nosler’s new 7mm SAUM (Rem Short Action Ultra Mag) and 7mm RUM (Rem Ultra Mag) brass. The 7mm SAUM is becoming popular in F-Class circles. With slightly less capacity (and a longer neck) than the 7mm WSM, the 7mm SAUM is a good choice for shooting the popular 180gr High-BC bullets from Berger and Sierra. Tactical shooters will appreciate Nosler’s new .338 RUM and .338 Lapua Magnum brass. It’s nice to have additional brass choices for these big cartridge types.
NoslerCustom Brass is Weight-Sorted, DeBurred and Chamfered
Notably, Nosler does extra finishing steps on its cartridge brass, based on the notion that: “Life’s too short to prep your own brass”. As with other NoslerCustom cartridge brass, the 17 new varieties will come “semi-prepped”. Flash holes are trued and case mouths are deburred and chamfered. According to Nosler: “Every piece is hand-inspected, and weight-sorted within +/- .5 grains” (and then packaged by weight groupings).
All the new types of Nosler brass will bear the “Nosler” headstamp although it is rumored that some of Nosler’s cartridge brass is made for it by other highly respected companies, both domestic and foreign. As to the 17 new varieties, we can’t identify which cartridge types are produced in-house and which will be out-sourced. Overall, our experience with NoslerCustom brass has been good, though in 22-250 and .308 Win it is not quite as strong or long-lasting as Lapua brass.
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Richard M. Hammett, Olin Corporation Vice President and President of Olin’s Winchester division, plans to retire effective February 28, 2011. Thomas J. O’Keefe assumes responsibilities as President of Winchester, effective January 1, 2011.
Hammett spent 42 years with Olin Corporation in a variety of finance, marketing and senior management roles. He has served as President of Olin’s Winchester Division since September 2002. An active sportsman and industry leader, Hammett is a board member and treasurer for the National Shooting Sports Foundation (NSSF). He also serves on the board of the Small Arms and Ammunition Manufacturing Institute (SAAMI).
Incoming Winchester President Thomas J. O’Keefe, who holds Bachelor’s and Master’s Degrees in Metallurgical Engineering, has plenty of experience in ammunition production. O’Keefe held positions in the manufacturing and engineering organization of Olin’s Brass division, and was appointed VP, Manufacturing and Engineering for the division in 2001. In 2006, O’Keefe was appointed VP, Manufacturing Operations for Winchester and assumed additional responsibility for Business Planning in 2008. For more info about Winchester Ammunition and its complete line of products visit www.Winchester.com.
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A while back, Forum member Andy (aka GrayMist) did an interesting test, with five (5) different types of .243 Winchester Brass. He collected Federal, Lapua, Remington, and two different lots of Winchester-brand brass. Then he selected ten (10) cases at random from each brand and measured their weights. To ascertain case capacity, three (3) cases from each brand/lot that were closest to the average weight for that brand/lot were selected. The results were surprising: there was less than one (1) grain capacity difference between all the cases, even with a 14.7 grain maximum difference in case weight!
Measuring Procedures
The cases were sized in a Redding body die then primed with a spent primer. All were weighed before and after filling them with distilled water. The capacity shown is an average of all three (3) cases from that lot and represents grains of water. Note, I tested two lots of Winchester brass. Lot A was purchased in 1999. Lot B was from factory .243 ammo. There is a rather large disparity in case weight between the two lots.
Brand
Federal
Lapua
Remington
Winchester A
Winchester B
Capacity
53.9
54.4
53.7
54.8
54.8
Aver. Weight
173.28
173.13
165.34
158.58
166.44
SD¹
0.46
0.39
0.17
0.58
0.42
Range²
1.70
1.10
0.40
1.80
1.40
% of Avg.³
0.98%
0.64%
0.24%
1.14%
0.84%
1) Standard Deviation in grains.
2) Range is the difference in weight between the heaviest and lightest cases in the test.
3) Case range weight divided by the average weight.
What the Numbers Mean … And Some Speculations
Andy observes: “It certainly seems there is a huge difference in case weight between Winchester lot A and any other brand of 243 tested. What is also surprising is that there was less than one (1) grain capacity difference between all the cases, even with a 14.7 grain difference in case weight!
Should one be wary of trying the same loads that were initially tested in the light weight Winchester brass even though the capacity difference is small? I have had some interesting results with one brand brass that I cannot pass on yet, except to say I sent that company a sample of the lot I have been using. The Remington brass weight range was very low. These were taken from a box of once-fired factory ammo. I will have to acquire some more and measure it.”
Results of Larger Lapua Sample
In a previous session Andy weighed all 100 Lapua cases he had on hand. His measurements showed a total variation of 2.1 grains, with the weight range being 172.5 to 174.6 grains. That is a 1.2 percent spread. The most that came in at the same weight were 11 cases at 173.5 grains.
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Here’s a word to the wise — not all full-length sizing dies are properly dimensioned to carry out the important task of “bumping” shoulders back on fired cases. With some dies the task may simply be impossible (without die or shell-holder modification). In fact, you may find that your attempt to bump the shoulder may actually INCREASE the dimension from base of case to shoulder datum!
We recently had some four-times fired 6mmBR Lapua brass. Using a Harrell’s collar that indexes off the shoulder, we measured the length from base of case to top of collar at 1.570″ (with primer removed). We noticed a little more resistance to bolt closure compared to fresh brass, so we decided to bump the shoulders back two thousandths. As a point of reference, we measured the same dimension (base of case to top of Harrell’s collar, primer out) as 1.5675″ on once-fired Lapua 6mmBR brass.
This Can’t Be Right …
To bump our shoulders we had an RCBS Gold Medal bushing full-length sizing die. Per the manufacturer’s instructions, we started with the die backed off 1/2 turn from contact with the shell-holder with the press ram at full height. We lubed and sized one case and then measured it. The shoulder had not moved. OK, no problem, we screwed the die down to contact the shell-holder (at full ram height) and tried again. This time the measured dimension was actually longer by a couple thousandths. The brass which measured (with collar) 01.570″ before sizing now measured 01.572″ — we were going in the wrong direction!
“Bumped” Shoulder Stretched .003″
Frustrated, we screwed the RCBS die in 1/8th turn past touching to allow “cam-over” which is necessary with some presses to actually push the shoulder back. We sized the case again, and this time the dimension had grown another .001″, to a total length of 1.573″! Wondering if there was something wrong with our calipers, we took the full-length sized brass (which previously had chambered just fine) to our 6BR rifle and tried to chamber it. Sure enough, the headspace had been lengthened by .003″ and the brass would not chamber at all.
Die Was Too Long Inside to Bump Shoulders Properly
What was going on? Here’s the explanation: the interior cavity of the die was too long so the shoulder surface inside the die was never actually making contact with the shoulder of the brass — and the die could not be screwed down any further. As the RCBS die, which was fairly tight in the bottom half, reduced the diameter of the brass, the case actually grew in length. While the brass was sized at the bottom it grew upwards because the “shoulder” section on the inside of the die was too high. As we “squeezed” the brass at the bottom it simply flowed upwards, increasing headspace.
With this RCBS die, in its current configuration, there was no way we could bump the shoulder back, even by .001″. The die would likely function effectively if we ground a few thousandths off the bottom, but we don’t think a die user should be obliged to make such a modification.
Lesson Learned: If your full-length die can’t bump your brass even when it is screwed down all the way (to cam-over if necessary), then you need a different die or you need to modify your die. As proof of this, we took out my trusty Redding 6mmBR full-length sizing die. This was set up (from experience), one-half turn off contact with the shell-holder. In that position, the Redding die easily bumped the shoulder of a fired case .002″ with no trouble whatsoever. We started at 1.570″ and ended up 1.568″ — right where we wanted to be. The task that couldn’t be done with the RCBS Gold Medal FL Die was accomplished easily with the Redding die. After lubing the case, we simply raised the ram to full height, and this moved the shoulder back .002″ as measured with the Harrell’s collar positioned on the shoulder.
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On our main Accurateshooter.com website, you’ll find a comprehensive review of the STM system for cleaning cartridge brass with stainless media. To clean brass with stainless media, start with five pounds of small stainless pins sold by StainlessTumblingMedia.com. Place these along with a gallon of water, a little liquid cleaner, and two pounds of cartridge brass in a rotary tumbler, and run the machine for one to four hours.
DJs Brass Offers Annealing, Cleaning, and Neck-Turning
Dispelling Some 6mm BRX Myths, by 
Truth: Bob was clear that his original design for the 6mm BRX always had a .100″ longer head space than a 6mm BR and that he never deviated from that. Right after Bob started working with his 6mm BRX, Bill Shehane came forward with a 6mm BRX version he made up that had a .120″ longer head space, and thus the confusion started. In truth, the original 6mm BRX always was (and still is) a chambering with a head space .100″ longer than a 6mm BR Norma.
Myth Five: The “false shoulder” method was used to make brass.
High-Tech Pressure Testing Equipment
Richard M. Hammett, Olin Corporation Vice President and President of Olin’s 
Hammett spent 42 years with Olin Corporation in a variety of finance, marketing and senior management roles. He has served as President of Olin’s Winchester Division since September 2002. An active sportsman and industry leader, Hammett is a board member and treasurer for the National Shooting Sports Foundation (NSSF). He also serves on the board of the Small Arms and Ammunition Manufacturing Institute (SAAMI).
What the Numbers Mean
We recently had some four-times fired 6mmBR Lapua brass. Using a Harrell’s collar that indexes off the shoulder, we measured the length from base of case to top of collar at 1.570″ (with primer removed). We noticed a little more resistance to bolt closure compared to fresh brass, so we decided to bump the shoulders back two thousandths. As a point of reference, we measured the same dimension (base of case to top of Harrell’s collar, primer out) as 1.5675″ on once-fired Lapua 6mmBR brass.
This Can’t Be Right …
Die Was Too Long Inside to Bump Shoulders Properly
