Wouldn’t it be great if a power screwdriver could also serve as a two-station case prep machine? Well now that’s possible with Hornady’s new Case Prep Duo. This rechargeable unit has a battery-powered motor that drives a dual spindle head. The back half of the unit rotates and tilts so you can use the tool in pistol grip mode or with a straight (inline) body. NOTE: The photo above shows the SAME tool in both modes — angled grip mode and inline mode.
Hornady says that “this cordless, rechargeable multi-function tool accommodates case neck brushes, primer pocket cleaners, and chamfer/deburr accessories. With the easy-to-swivel body and integrated rubber feet, use it in the straight configuration on your bench top, or rotate it … for an ergonomic, handheld power tool. Use with the 8-32 spindle head for various reloading functions or remove the spindle head and use as a powered screwdriver with standard 1/4-inch hex bits (not included).” The Case Prep Duo comes complete with deburr and chamfer heads, plus plug-in charger. The unit is affordable — MSRP is just $64.59 and we expect “street price” to be around $55.00.
IMPORTANT: The Case Prep Duo has a removable dual-drive (twin spindle) head. You can remove that head and use the Case Prep Duo as a standard, powered screwdriver. WATCH the VIDEO (at 00:20) to see how this works.
Do you have some old, tired brass that needs a thorough cleaning — inside and out? Consider using an ultrasonic cleaning machine. When used with the proper solution, a good ultrasonic cleaning machine can quickly remove remove dust, carbon, oil, and powder residue from your cartridge brass. The ultrasonic process will clean the inside of the cases, and even the primer pockets. Tumbling works well too, but for really dirty brass, ultrasonic cleaning may be a wise choice.
Our friend Gavin Gear recently put an RCBS Ultrasonic cleaning machine through its paces using RCBS Ultrasonic Case Cleaning Solution (RCBS #87058). To provide a real challenge, Gavin used some very dull and greasy milsurp brass: “I bought a huge lot of military once-fired 7.52x51mm brass (fired in a machine gun) that I’ve been slowly prepping for my DPMS LR-308B AR-10 style rifle. Some of this brass was fully prepped (sized/de-primed, trimmed, case mouths chamfered, primer pockets reamed) but it was gunked up with lube and looking dingy.”
UltimateReloader.com Case Cleaning Video (7.5 minutes):
Gavin describes the cleaning exercise step-by-step on UltimateReloader.com. Read Gavin’s Cartridge Cleaning Article to learn how he mixed the solution, activated the heater, and cycled the machine for 30 minutes. As you can see in the video above, the results were impressive. If you have never cleaned brass with ultrasound before, you should definitely watch Gavin’s 7.5-minute video — it provides many useful tips and shows the cleaning operation in progress from start to finish.
Ultra Dry Necks After Ultrasonic Cleaning — Some Suggestions
The Ultrasonic cleaning process gets cartridge brass so “squeaky clean” that increased force may be required to seat your bullets, or they may “grab” as they go in the necks. To reduce bullet-seating effort, you may benefit from adding a little dry case lube inside the case-neck before loading (use a nylon brush). Another trick is adding a teaspoon of Ballistol lube to the cleaning solution. That provides a trace lubricant inside the necks, but does not interfere with powder ignition in any way.
The RCBS ultrasonic cleaning machine features a large 3-liter capacity, 60 watt transducer, and 100 watt ceramic heater. The RCBS ultrasonic machine can be found under $140.00, and this unit qualifies for RCBS Rebates ($10 off $50 purchase or $50 off $300.00 purchase). RCBS also sells 32 oz. bottles of cleaning concentrate that will make up to 10 gallons of Ultrasonic Solution.
We asked a few Sierra Bullets bulletsmiths “What is your favorite ‘don’t know how you ever lived without it’ piece of reloading equipment?” Along with the not-so-surprising “reloading press” responses, there are some interesting answers, including a reloading room, an annealing machine, a comparator, and a home-made tool for detecting incipient case head separation. Check out all the answers below. We would love to hear from you too, please share your response in the comments below.
What Is Your Favorite Piece of Reloading Equipment?
Ballistic Technician Carroll Pilant answered: “Dillon 550 and 650 presses.”
Ballistic Technician Rich Machholz answered: “My universal decapping die is as handy as a pocket on a shirt.”
Ballistic Technician Philip Mahin answered: “A comparator gauge to measure from the base of a case to the ogive of the bullet. This bypasses the tip of the bullet, so I can repeat the same seating depth the next time I visit a specific combination.”
Ballistic Technician Duane Siercks answered: “I don’t know that you would actually call this equipment, but the item that comes to mind would be my reloading room. I had always had to squeeze everything into a corner or even an unheated shed. After we bought our current house, I built a garage and placed it so that I had a window looking down a 250-yard range. I built a dedicated room with heat and A/C. It contains my reloading bench and a shooting bench. The shooting bench lets me slide open the window and shoot down the range. It is very handy to not have to load everything up to go to the range. It also makes load development a lot simpler and efficient. I don’t know how I ever got along without it.”
Ballistic Technician Paul Box answered: “The Lee hand priming tool.”
Former Ballistic Technician Robert Treece answered “My homemade dental pick. I use it to check incipient case-head separations. We all see the ‘bright ring’ down close to the case head, that’s natural, but after several firings could be starting to split apart. You could start by just straightening out a paper clip; flattening one end; sharpening and turning it 90 degrees, then bend if about 1/8″ long will even fit all the way down into .204″ cases. On the other end, bend about 3/4″ to 90 degrees also, in the same direction as the pick. That will give you a handle and also ‘points’” in the direction of the pick as you scrape along the side wall from down inside at the bottom upward along the side wall. If the pick hooks into a crevice — DON’T TRY TO SIZE THE CASE. It will pull apart in your die.”
Dan Blake answered: “My Annealing Made Perfect (AMP) annealer. With consistent neck tension being one of the largest contributions to small Extreme Spread on muzzle velocities, I believe this induction annealer is truly the best on the market.”
This manufacturer-produced video shows how the AMP annealing machine operates:
Production Toolsetter Brad Vansell answered: “Redding Ultramag single-stage reloading press for my rifle and my Dillon 650 for my pistol loading.”
Process Engineer David Palm answered: “Homemade case lube.”
Plant Engineer Darren Leskiw answered: “Beyond the normal equipment, I’d say my electronic scale. Using the beam balance for the past 9 years was ok, but nowhere as easy as using an electronic scale.”
There were many votes for the classic RCBS Rock Chucker single-stage press:
Ballistician Gary Prisendorf answered “RCBS Rockchucker Press, it’s built like a tank, and it will last me a lifetime.”
Production Manager Chris Hatfield answered: “RCBS single stage reloading press.”
Maintenance & Machine Shop Lead Craig Westermier answered: “RCBS Rock Chucker.”
Production Resource Manager Dan Mahnken answered “RCBS Rock Chucker! Buy one and it lasts a lifetime.”
Hodgdon and IMR powders, including H4198, Varget, H4350, and IMR 4451, are some of the most successful propellants used by competitive shooters. If you want to find solid, reliable load data for these and other Hodgdon and IMR powders, we recommend you go right to the source — visit the Hodgdon/IMR Reloading Data Center, at www.HodgdonReloading.com. There you’ll find the latest, updated load recipes for pistol, rifle, and shotgun reloaders.
In the Data Center, you’ll find thousands of load recipes for pistol, rifle, and shotgun. Rifle shooters will find dozens of loads for their favorite Hodgdon, IMR, and Winchester powders such as H4198, Varget, H4350, and IMR 8208 XBR. And Hodgdon’s Reloading Center is now faster and easier to use. Navigation is simplified and the whole interface is more user-friendly.
Precise Search Results for your Cartridge and Favorite Powders
The online Reloading Data Center allows you to get precise search results for any listed cartridge. You can select your preferred powders and bullets. After choosing a cartridge, you can pre-select specific bullet weights and powder types. That quickly delivers just the information you want and need. You won’t have to scroll through scores of entries for bullets or powders you don’t use.
Data Center Works Well with Mobile Devices
Mobile users will notice Reloading Center is very “user-friendly” for smart-phone and tablet users. Controls have been optimized for touch-screens, and buttons are large and easy to use. Likewise the results are displayed in a large, easy-to read format.
Hodgdon tip from EdLongrange. We welcome reader submissions.
Forum member Danny Reever and this Editor recently discussed how novice reloaders can struggle with the fine points of reloading, making errors in seating depth, bushing choice, or sizing their cases. We agreed that a good resource covering more than “Reloading Basics” is sorely needed. Danny reminded me that Glen Zediker’s excellent Handloading for Competition book has been available since 2002. Danny says this may still be the best guide in print for those getting started in precision reloading, though the book is not without flaws.
Danny observed: “I consider this still the best book out there on the subject. I’ve bought a lot of other books only to be sorely disappointed after spending $30-$40 of my hard-earned cash. This book is not one of those! I’ve read and re-read Zediker’s treatise at least four times and refer to it often for advice while reloading. My number one suggestion for those who buy the book is to sit down with a highlighter and read it cover to cover. It’s well-written with a bit of humor and it is not boring.”
Extremely comprehensive, Zediker’s book covers nearly all of the key factors involved in accurate reloading: case sorting, brass prep, load development, neck-sizing, full-length sizing, bushing selection/use, tool selection, priming, powder measurement, and bullet seating. The book also explains how to test and evaluate your ammo, and how to monitor and interpret pressure signs.
There are many “must-read” sections in Zediker’s book, according to Danny: “The section beginning on page 161 dealing with concentricity (and how to achieve it) is excellent. Likewise the Load Limits section discussing pressures offers very valuable advice and info. You should also read Zediker’s commentaries about load testing, powders (burn characterics etc.), and the effects of temperature.”
Zediker has conveniently provided a detailed summary of his book on the web, complete with table of contents, sample pages (PDF format), and dozens of illustrations. Shown above is just one small section that covers ejectors.
Overall, we recommend Glen Zediker’s Handloading for Competition, though the book definitely could use some updating. Danny says: “Plunk down the [money] and buy this book, you won’t be sorry.” Zediker’s book is available from Amazon.com ($30.25), Sinclair Int’l ($28.99), and Zediker Publishing ($34.95).
At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
1. CDNN Sports — Ruger American .270 Win, $289.99
If you’re looking for a good deer-hunting rifle at a super-affordable price, check out this .270 Winchester Ruger American. It comes with a gray-blue digital camo finish that actually suits gray fall days pretty well. The long action sits in a integral bedding block, and features a three-lug bolt with 70° bolt lift. The 22″ hammer-forged barrel has a 1:10″-twist, so it’s capable of shooting the most popular .270-caliber hunting bullets. Ammo is held in a flush-fit rotary magazine. The Ruger American is a good, solid rifle — and this is a steal at $289.99. If you don’t like the finish, buy a $5.00 can of spray paint.
2. Grafs.com — SK Standard Plus at $5.99 per Box
This is very good European-made rimfire ammo at an affordable price. SK Standard Plus is much better than most low-priced rimfire ammo. This is a good choice for cross-training, fun plinking, or rimfire tactical matches. When we don’t need ultra-high-quality Eley or Lapua match .22 LR ammo, we’re happy to shoot SK Standard Plus. The Grafs.com priceincludes shipping (after one flat $7.95 fee).
3. Midsouth — FREE Hat with Lee Pistol Die Sets
Lee pistol dies are not expensive, but they work perfectly well for most handgun cartridges. We like the fact that Lee’s three-die sets come complete with a shell-holder and dipper. We use Lee dies ourselves for 9mm Luger and .380 ACP reloading. Right now Midsouth has a special offer — buy any pistol die set (starting at $30.56), and you get a FREE Midsouth hat (green or khaki). We recommend the 3-die carbide die sets. These include Carbide Full Length Sizing Die, Bullet Seating Die, Powder-Thru Expanding Die, Universal Shell Holder, and Powder Dipper. All the elements (dies, shell-holder, dipper) fit inside a convenient see-through plastic storage case.
The RCBS Rock Chucker remains a classic — a big, strong, versatile press that can handle most reloading chores with ease. And now you can get a genuine Rock Chucker Supreme for $126.99 — a very good deal. The Rock Chucker offers plenty of leverage for case-sizing and the “O” is tall enough for long cartridges. The Rock Chucker has a very strong base and should last a lifetime. We’re not fans of the Rock Chucker’s priming system but most serious reloaders use a separate priming tool.
This is a very good spotting scope for the price. Yes it gives up some low-light performance to a spotter with an 80mm objective, but otherwise it is a good performer, and we can’t think of much that will touch this Vortex Diamondback spotting scope for anywhere near the $399.99 sale price. Choose from angled or straight version for the same $399.99 price, which includes the 20-60X zoom eyepiece.
6. Natchez — RCBS ChargeMaster Dispenser, $279.99
Here’s a very good deal on the popular RCBS ChargeMaster combo scale/powder dispenser. This unit sells elsewhere for up to $389.00. You may want to act quickly as sale pricing changes frequently and many other vendors have recently raised their prices. Grafs.com sells this for $369.99 now while the current Amazon.com price is $296.99. You can save a lot through Natchez right now. NOTE: There is an RCBS Rebate Program in effect now — if you spend at least $300.00 on “RCBS tools and accessories” you can get $75.00 back.
7. Home Depot — 72″ Wood Workbench for $75.36
This patented Home Depot workbench assembles in a few minutes. Simply unfold the legs, pop in the shelf, and you are ready to start your project. Made from Premium 2×4 Hemlock fastened with glue and screws, this workbench is a great value. The bench (72″ wide x 35″ high x 22″ deep) can easily be stored when not in use. NOTE: The wood is unfinished (can be painted or stained).
This is a pretty darn good folding knife, and a killer deal at under $20.00 from Amazon.com. Yes your Editor bought one. The semi-serrated stainless steel blade is sharp and holds its edge surprisingly well. The knife comes with a nylon sheath and a Bear Grylls survival guide. Despite its low cost, Gerber offers a lifetime warranty on this knife.
Here is a verified owner’s review: “Most retailers sell it for 30 bucks. This knife is…very sturdy with no blade play and has a good solid feel. The handle is very grippy… [and] fits VERY nicely in the hand. Love Gerber’s serrations… great for cutting rope, cordage and strapping.” Note — this price has been fluctuating. There was one Amazon seller at $19.85 with Free shipping, Click link at right to see multiple price options.
You can never be too safe when hand-loading your own ammunition. This helpful Brownells video outlines the Seven Fundamental Reloading Safety Tips. This is important information for novice hand-loaders and a good refresher for those with reloading experience!
Summary of the Seven Safety Tips:
1. Store your reloading supplies in a safe and dry location, away from children and away from any possible source of ignition. This includes keeping your powder and primers separate.
2. Get and use respected reloading manuals, especially for new cartridges. Start low and work up slowly while watching for warning signs of pressure and/or case fatigue.
3. Locate your reloading activity where you will not be distracted. If you get interrupted, stop. (Distractions will eventually lead to mistakes.)
4. Do NOT mix powders. Keep your powders clearly marked and dated. You can use masking tape to write the date on the container.
5. If you load the same cartridge type for different firearms, make sure your ammo headspaces properly in each gun.
6. Check cases frequently. Look for split necks, case head separation or other signs of fatigue and excessive pressure.
7. If reloading military brass, be aware that case capacity is usually reduced, and initial loads should be at least 10-15% lower than published data.
Here are some other tips that will help your avoid making costly mistakes (such as using the wrong powder, or undercharging a case):
Powder Type — Always double-check the label on your powder containers. After placing powder in the powder measure, put a piece of tape on the measure with the powder type written on it. Some guys write the powder type on a card and place that right in the hopper.
Scale Drift — Electronic balances can drift. If you are using a digital powder scale, calibrate the scale with a test weight every 50 rounds or so.
Case Fill — If you throw more than one charge at a time, look INSIDE every case before seating a bullet. Squib charges can be dangerous if you don’t notice them before firing the next round.
Progressive Presses — When using a progressive press, consider using an RCBS Lock-Out Die. This will detect a low charge and stop the machine. These dies will work with RCBS, Hornady, and Dillon progressives.
At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
The RCBS Rock Chucker remains a classic — a big, strong, versatile press that can handle most reloading chores with ease. And now you can get a genuine Rock Chucker Supreme for $126.99 — a very good deal. The Rock Chucker offers plenty of leverage for case-sizing and the “O” is tall enough for long cartridges. The Rock Chucker has a very strong base and should last a lifetime. We’re not fans of the Rock Chucker’s priming system but most serious reloaders use a separate priming tool.
2. Midsouth — 17 HMR V-Max Ammo, $10.45 for 50 rds
Need 17 HMR ammo for your varmint safaris? Then grab this Hornady V-Max ammo while you can at $10.45 for a 50-round box. This is a great price. Other vendors are selling the same Hornady ammo for as much as $15.00 per box. We’ve used this ammo and it was very accurate out of both semi-auto (Savage A17) and bolt-action (CZ 455) 17 HMR rifles.
3. Aero Precision — Upper and Lower Stripped Receivers, $189.99
If you want to build your own AR for varminting, self-defense, or competition, here is a great value for the basics. Right now Aero Precision is offering a combo set of AR15 Stripped Upper Receiver PLUS AR15 Gen 2 Stripped Lower Receiver all for $189.99 with free shipping. The upper and lower are both machined from from 7075-T6 aluminum forgings and have a tough, Cerakote finish. This upper/lower set features 0.250″ takedown pin holes and M4-style feedramps. Both upper and lower take standard AR15 components so you can choose from a wide selection of trigger groups.
The Jewell trigger is still probably the most commonly-used trigger in benchrest competition. Right now at Grafs.com you can get a Remington 700-compatible Jewell benchrest trigger for $179.99 — that’s $20.00 of the regular price. This single-stage trigger adjusts from 1 ounce to 3 ounces pull-weight, and has a crisp, precise release. This will fit Rem 700 actions as well as Rem-compatible custom actions. This trigger does NOT have a safety and it is NOT recommended for hunting applications. (Sale tip from EdLongrange.)
5. Cabelas — Howa 1500 Mini-Action in .223 Rem, $349.99
Here’s a good deal on a great little rifle. Right now at Cabela’s you can get the Howa 1500 Mini-Action in .223 Rem for just $349.99. That’s a bargain — other vendors are charging $500.00 or more for this rifle. The Howa 1500 Mini Action is nearly an inch shorter than a Rem 700 short action, making for a nice, compact carry-around varminter. Your Editor checked out the Howa Mini Action Rifle at SHOT Show. The bolt opens and closes VERY smoothly (way better than most mass-produced bolt guns). The two-stage HACT trigger is excellent — it’s plenty light, with a crisp release and no annoying spring-loaded blade in the middle.
If you shoot long range, you need a scope level. This Discovery scope level is fully CNC-machined to close tolerances for a good fit. It is available with three inner diameters to fit scopes with 1″, 30mm, or 34mm main tubes. The 1″ version is just $11.99 while the 30mm model is $13.95 and the large 34mm version is $15.95. You could easily pay $35.00 or more for a 30mm scope level. Purchasers have praised this product: 89% of verified buyers rated this five stars.
7. Eabco.com — Pillar-Bedded Laminated Stock for Savage
For a Savage-based general purpose rifle, this Laminated Thumbhole Savage Stock is a good choice, and a fine value at just $175.00 including installed pillars. (Most bargain-priced laminated stocks do NOT include pillars). This stock fits Savage actions with detachable magazines. There are four color options: Camo laminate (shown in photo), Brown Laminate, Gray Laminate, and walnut color.
8. RCBS — Buy Green, Get Green Rebate
RCBS is running a very attractive Rebate Program currently. If you spend $300.00 on qualifying products you get a $75.00 rebate. Spend $50 and get a $10.00 Rebate. This program is limited to one (1) rebate redemption per calendar year, with a maximum of $75.00. CLICK HERE for more information. NOTE: To qualify, you must supply completed RCBS rebate coupon, original UPC barcodes from package, and original cash register receipt and/or dated, itemized sales invoice.
At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
The Leica CRF1000-R is an excellent choice for a hunter. The small Leica fits in a shirt pocket, and is easy to hold with one hand. That lets you range a prize buck quickly. This unit can range line-of-sight targets effectively out to 1,000 yards. In addition the CRF1000-R accounts for angle of inclination/declination, to provide Equivalent Horizontal Range (EHR) from as little as 10 yards out to 600 yards. This makes it ideal for many rifle shots taken in steep, mountainous terrain. The waterproof CRF1000-R features a 24mm optical lens with 7X magnification. Field of view at 1000 yards is 347 feet. Europtic’s $449.00 SALE price is the best we’ve found on this unit.
The LabRadar is the most advanced chronograph on the market. When it was first released, you had to wait months to get one of these Doppler Radar units. Now they are in-stock and ready to ship at Bruno Shooters Supply for $559.95. Once you learn how to position and adjust the LabRadar, you should find the machine reliable and versatile. We do recommend getting a separate battery pack. If you are considering purchasing a LabRadar Chronograph, we strongly suggest you read the very thorough and informative LabRadar Review by Ray Gross, Captain of the USA F-TR team. NOTE: If the LabRadar sells out at Bruno’s, you should be able to get it from MidwayUSA, for the same $559.95 price.
3. CDNN Sports — Savage 64 TR-SR, $239.99
Th Savage 64 TR-SR is great for Rimfire Tactical matches or general rimfire cross-training. The tactical-style wood stock features a vertical grip and a low-angle rear toe that works well in a rear bag. The Savage TR-SR comes complete with a Picatinny-style rail for mounting optics, and the muzzle is threaded 1/2-28 for suppressors. This .22 LR rifle, now just $239.99 on sale at CDNN, works well shooting prone from bipod or rest. With this low price you can afford lots of .22 LR ammo for training.
4. Midsouth — Nikon ProStaff Scopes Starting at $149.95
If you need a good, basic zoom scope for a hunting rifle or general-purpose rifle, this deal is hard to beat. Right now Midsouth has Nikon ProStaff scopes on sale started at just $149.95 for a 3-9x40mm. And there’s free shipping to boot! The ProStaff scopes on sale feature Nikon’s patented BDC reticle and are backed by Nikon’s no-nonsense, lifetime warranty. CLICK HERE to see this offer at Midsouth Shooters Supply.
5. Natchez — Special 5 Reloading Press Kit, $199.99
This is an excellent entry-level reloading kit, which is on sale for $199.99 at Natchez Shooters Supplies. We like the relatively compact Special 5 press for most reloading duties. Eventually you may want to add an additional, large heavy press, but this will get the job done. This kit includes an RCBS Powder Measure, Digital Scale, Powder Trickler, Hand Priming Tool, Load Manual, Loading Tray, and more. It’s hard to beat this combination of tools for under $200.00.
6. Amazon — Plano 42″ All-Weather Hard Case, $59.99 Shipped
Here’s a rugged hard case that compares well with a Pelican case, yet is less than half the cost. Plano’s GunGuard All Weather™ 42″ tactical gun case features heavy-duty, dual-stage lockable latches, a user-configurable foam interior, and a watertight/airtight closure with built-in pressure valve. The interior size is 43″ X 13″ X 5″, while the pluckable foam zone is 39.25″ X 10.25″. This is a very tough case that can withstand hard handling. The very attractive $59.99 sale price includes FREE shipping.
7. Grafs.com — MagnetoSpeed Sporter $179.99
If you have been waiting to get a MagnetoSpeed… wait no longer. Priced at just $179.99 at Grafs.com, the MagnetoSpeed Sporter model costs less than half as much as Magnetospeed’s V3 models. This chronograph attaches directly to your barrel so you don’t have to go downrange to position tripods and set up skyscreens. For most people the Sporter Model contains all the features they need. Using MagnetoSpeed’s XFR adapter (sold separately), data can be transferred easily from the display module to your mobile device. READ Magnetospeed Sporter Review.
8. Amazon — RAVPower 22000 mAh Battery Bank, $31.99
This is one of the most powerful, fast-charging USB-type power banks you can buy. Rated at 22000 mAh, it has 50% more “juice” than many units selling for around $35.00. This RAV Power machine charges up quickly and boasts three “intelligent” ports for optimal charging of smartphones, iPads, tablets, and other devices. Your Editor bought this RAVPower 22000 mAh unit to charge his own phone and iPad. It can deliver a total current output of 5.8A (2.4A max per port), allowing it to charge two iPads and one iPhone 6s at optimal charging speeds. This unit can also power a LabRadar Chronograph for a full weekend of shooting (6-7 hours per day). This is a very good deal — the price was just dropped from $39.99 to $31.99 with free shipping on orders over $49.99.
Ever wondered what caused a particular bulge or marking on a case? And more importantly, does the issue make the case unsafe for further use? Sierra Bullets Ballistic Technician Duane Siercks offers some insight into various issues and their causes in this article from the Sierra Blog.
Diagnosing Problems with Cartridge Brass
by Duane Siercks, Sierra Bullets
I was handed a small sample of .223 Rem cases the other day and was asked if I could comment on some marks and appearances that had been noticed as they were sorting through the cases. I will share what was observed and give you what would seem to be a cause for them. These were from an unknown source, so I have no way of knowing what type of firearm they were fired in or if they were factory loaded or reloaded ammunition.
Example ONE: Lake City 5.56, Unknown Year
Case #1 was seen to have a very rounded shoulder and split. Upon first look it was obvious that this round had been a victim of excess pressure. The firearm (perhaps an AR?) was apparently not in full battery, or there was possibly a headspace issue also. While taking a closer look, the primer was very flat and the outside radius of the primer cup had been lost. High pressure! Then I also noticed that there was an ejector mark on the case rim. This is most certainly an incident of excessive pressure. This case is ruined and should be discarded. See photo below.
Example TWO: Lake City Match 1993
Case #2 appears very normal. There was some question about marks seen on the primer. The primer is not overly flattened and is typical for a safe maximum load. There is a small amount of cratering seen here. This can be caused by a couple of situations.
Cratering is often referred to as a sign of excess pressure. With safety in mind, this is probably something that should make one stop and really assess the situation. Being as there are no other signs of pressure seen with this case, I doubt that pressure was unsafe. That leads us to the next possibility. This can also be caused by the firing-pin hole in the bolt-face being a bit larger than the firing-pin, and allowing the primer to flow back into the firing-pin hole causing the crater seen here. This can happen even with less-than-max pressures, in fact it has been noted even at starting loads. Always question whether pressure is involved when you see a crater. In this situation, I lean toward a large firing-pin hole. This case should be safe to reload.
Example THREE: R-P .223 Remington
Case #3 appears normal with one exception. There are two rings seen about one half inch below the base of the shoulder. These rings are around the circumference of the case, one being quite pronounced, and the other being noticeably less.
As we do not know the origin of the firearm in which this case was fired, it does seem apparent that the chamber of the firearm possibly had a slight defect. It could have been that the reamer was damaged during the cutting of this chamber. I would suggest that the chamber did have a couple of grooves that imprinted onto the case upon firing. This firearm, while maybe not dangerous should be looked at by a competent gunsmith. In all likelihood, this case is still safe to use.
Example FOUR: R-P .223 Remington
Case #4 has no signs of excess pressure. There is a bulge in the case just ahead of the case head that some might be alarmed by. This bulge is more than likely caused by this case being fired in a firearm that had a chamber on the maximum side of S.A.A.M.I. specifications. There is actually no real issue with the case. Note that the primer would indicate this load was relatively mild on pressure.
If this case was reloaded and used in the same firearm numerous times there might be a concern about case head separation. If you were going to use this case to load in an AR, be sure to completely full-length re-size to avoid chambering difficulties. This case would be safe to reload.
It is very important to observe and inspect your cases before each reloading. After awhile it becomes second nature to notice the little things. Never get complacent as you become more familiar with the reloading process. If ever in doubt, call Sierra’s Techs at 1-800-223-8799.