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February 9th, 2011
Gear Review: 21st Century Neck Turner
by Germán A. Salazar
A new neck-turning tool with easy adjustments, super-high quality of manufacturing and an ergonomic design sounds like a good thing to me. If you also like good tools and like to keep up with developments in the field, read on (most of the pictures can be enlarged by clicking on them).

I recently received the new Neck-Turning Tool made by John at 21st Century Shooting. I always enjoy seeing John’s work because he really has a good grasp on how a tool should be designed to work effectively and this tool certainly fits that mold. The basic requirements of a good neck turner are: (a) accurate adjustments, (b) good blade design, (c) ergonomic design and (d) a well thought-out system of ancillary items. Let’s look at each of those areas and give the tool a test drive.
Handy Cut-Depth Adjustment Dial
The 21st Century neck turner has a unique dial adjustment for the depth of the cut which makes small adjustments simple and fast. Each full number represents 0.001″ of cutter movement, and the fine lines in between let you zero in on the exact neck wall thickness that you need. The dial is simply turned in until the desired neck thickness is reached. If you go too far, it’s best to turn it out a full turn, then back in once again; this reduces the effect of any backlash that might exist in the threads. I found the dial easy to use and had no trouble getting to my usual thickness setting of 0.0125″.
Excellent Carbide Cutter Blade Design
At its core, a neck turner is a cutting tool and good blade design is what sets any good cutting tool apart from the competition. Here, John really shows his ability as a designer and manufacturer. The blade supplied on my tool is carbide and cuts brass effortlessly, however, that’s not the real point of interest. Many neck turners have blades with less than ideal nose radius and create a “threading” effect on the neck unless the tool is fed over the brass at a very slow rate. The 21st Century blade has a good radius at the transition to the shoulder angle which allows for a smooth cut with a reasonable feed rate.
The shoulder angle is another well thought-out feature as it is a very close match to the actual shoulder angle of the case. This allows you to bring the cutter a bit further into the shoulder without weakening it and definitely avoid the subsequent occurrence of the donut of thick brass at the base of the neck. (When ordering, 21st Century lets you specify one of four (4) different cutter shoulder angles to match your particular cartridge: 20°, 30°, 35°, and 40°.) The photo of the case in the cutter shows the cutter making solid contact with the shoulder after a substantial cut on the neck, yet the shoulder was really just lightly touched. I backed the cutter off a bit from this setting for the final adjustment. If you tend to use heavy bullets which extend below the base of the neck, this feature alone makes John’s tool worthwhile.

Turning necks is tedious, especially if you’re turning a large number of cases as High Power shooters generally do. Accordingly, a design that takes ergonomics into consideration is highly appreciated. Note the slight hourglass shape of the tool, that really lets your hand take a grip that counters the natural tendency of the tool to turn with the rotation of the case, especially when turning with a power case driver. The size of the tool itself also helps; if you’ve used one of the smaller tools on the market, you know just how tired your hand can get from trying to hold on to it after a while! I turned 70 case necks in two sessions with the 21st Century tool and my hand and fingers remained comfortable throughout.
However good the turner may be, it doesn’t work alone. Any neck turner needs a matching expander. The 21st Century expander is a nicely designed unit that allows you to change expander sizes with no tools by simply unscrewing the cap of the die body and dropping in the appropriate expander.
K&M Arbor Adapters Available
I’ve been using a K&M turner for some years now and have accumulated turning arbors (mandrels) in various sizes. John knows that’s the case for many of us, so he makes affordable adapter bushings for his tool that allow the use of K&M turner arbors. That’s a nice feature that will allow me to save the price of a few arbors and expanders. The adapter for K&M arbors costs $12.00.
Although I use a cordless screwdriver to turn the case, I still like to have a manual option for case turning. Sometimes the cordless driver dies with just a few cases left to go in a session and I know that, one day, when I most need it, it’ll just quit altogether. John’s case handle for manual case turning is another well-designed, ergonomic piece that shows his careful, thoughtful approach to tool design. He even makes a version of it for the .50 BMG if your tastes in cartridges run on the large side!

Neck-Turning Tool and Accessory Order Information
Order the Neck Turner and accessories through www.21stCenturyShooting.com, or call (260) 273-9909. The 21st Century neck-turning tool, by itself, costs $78.00, including a carbide cutter (standard size). You can chose among four different cutter shoulder angles, to match your particular cartridge: 20°, 30°, 35°, and 40°. Additional carbide cutters cost $26.00-$28.00. Caliber-specific turning arbors and expander mandrels are priced at $7.95 each. The standard size Universal Case-Holding Handle (photo above), costs $16.95.
You can also purchase a complete Neck-Turning Tool Kit from 21st Century. This $112.99 package includes everything you need:
Neck Turning Tool w/cutter
Turning Arbor
Expander Mandrel
Expander Die Body
Loading Die Locking Ring
Neck Turning Universal Handle
Disclosure: 21st Century Shooting, an advertiser on this website, provided a neck turner tool and accessories to German Salazar for testing and evaluation.
August 6th, 2009
Sinclair Int’l has introduced two important new reloading products. Both are items that reloaders have requested for quite some time. Sinclair listened and now offers: 1) a precision large (.081″) flash hole reamer; and 2) a neck-turning tool for large cartridges such as the 50 BMG.
Large Flash-Hole Reamer
Sinclair has released a new, .081″-spec “outside-in” Flash Hole Reamer (item 07-3081) designed to designed to uniform standard flash holes to exactly .081 inch. This 3-piece tool features all stainless steel construction, a double-ended reamer guide for both large and small primer pockets, a knurled handle for easy turning, and a straight-fluted .081 inch reamer. With this tool you can remove burrs or obstructions in the flash hole and ensure that all your flash holes are the same size. NOTE — this tool works for both small primer pockets AND large primer pockets, for cartridges with .080″ nominal diameter flash holes. The new 07-3081 tool costs $37.50.

For quite some time, Sinclair Int’l has sold a similar device for small (PPC and BR-size) flash holes. Like the new 07-3081 unit for large flash holes, the 07-3000 Reamer for small flash holes works from the outside, so it can index off the primer pocket. It reams to .0625″, and also costs $37.50. The standard dimension for Lapua 220 Russian and 6mmBR flash holes is 1.5mm or .0590″. This tool will permit standard-size decapping rods with .0625″ tips to work without binding. However, note that both Forster and Redding normally supply .057″ decapping pins with their PPC and BR dies. So, it is NOT necessary to ream your Lapua BR/PPC flashholes, unless you prefer to do so for uniformity. It IS, however, a good idea to check BR/PPC flash holes for burrs before loading the first time.

NOTE: If you purchase either the 07-3081 or 07-3000 Sinclair Flash Hole Reamer tools, we recommend you mic the cutter tip before you process a bunch of cases. Sometimes a tip comes through that is oversize. This will ream the flash holes larger than you may intend.
Large Caliber (35-50) Neck Turning Tool
Jumbo rifle cartridges, such as the 408 Chey Tac and 50 BMG, are becoming more popular with precision shooters, and Sinclair’s customers have asked for a neck-turning tool which will handle the large calibers. Sinclair’s new NT-5000 Neck Turning Tool will work for cartridges from 35 caliber all the way up to 50 cal, including the 50 BMG. This new tool uses the same smooth, cutter adjustment system as Sinclair’s NT-1000 Neck Turner, but a special oversize case-holder is furnished with each NT-5000 tool. Special large-caliber Expander Dies, and large-caliber turning and expander mandrels are available individually or as part of a Large Caliber Neck Turning Tool Kit.

July 21st, 2009
Grant, one of our Forum members from New Zealand, asked if there was a universal shell-holder that could hold cartridges securely for neck-turning, trimming, and case prep. He complained that the screwdriver-type case holder he was using didn’t center easily, was hard to tighten, and the case sometimes came loose during rotation. Another forum member agreed that he has experienced the same problems using a screwdriver-type case-holder.
This editor has found that a K&M screwdriver-type case holder CAN work securely if you tighten the locking mechanism tightly with the supplied wrench. But then you need the wrench again to get the case OUT. We were interested to see if there was a better solution that held the case securely, yet was easy to lock and unlock without tools.
Forum member Gunamonth provided a solution: “I use a Lee Zip Trim three-jaw case holder. With a little practice it centers the case quite nicely and holds just about anything. Chuck it in a cordless drill and have at it. It is much better than either the K&M or Sinclair [case-holder] in my opinion and the Zip Trim jaw is a lot cheaper (about $12.00). To use with power, you also need the Zip Trim three-jaw spindle, which is another $2.00.”

June 18th, 2009
The full line of K&M reloading tools and accessories is now offered by PrecisionReloading.com. The popular K&M Arbor press (with optional seating force measurement gauge) is in stock. The K&M arbor costs $78.00, or $115.00 with the force measurement system. This clever design uses a Belleville washer stack and linkage to show the force required to seat your bullet on a standard dial indicator mounted on the top (dial indicator is $22 extra.) In addition, Precision Reloading offers K&M neck-turning tools, primer seaters, expanders, neck reamers, and flash-hole uniformers.
This editor has tried out many different arbor presses. The K&M is my favorite. For me, the force measurement system acts like a warning light, telling me if something is way off in the bullet seating process. If you see the dial indicator needle jumping around wildly, or spiking too soon, you know that case has excessive neck tension, or perhaps the bullet is oversize in diameter (it happens). Currently, the K&M is the only arbor press with a seating-force gauge. The only down-side to the K&M arbor is that you must adjust multiple bolts to set the ram height. By contrast, the Sinclair Int’l Arbor and some other arbors feature a quick-release lever that lets you adjust ram height quickly and easily.

Based in Mitchell, South Dakota, Precision Reloading is run by active, knowledgeable shooters. In addition to centerfire reloading supplies and tools, Precision Reloading offers a full line of shotshell components and shotgun reloading equipment, plus optics, cleaning supplies, gun cases, and hunting gear. This month Precision Reloading is running an optics sale on Bushnell, Sightron, and Vortex scopes, binoculars, and spotting scopes.
February 3rd, 2009
If you’re using a body die or a full-length sizing die, try using Ballistol (in the aerosol can) as a lube. It works GREAT without the tacky or gooey residue left by most case lubes. It will also clean off carbon residues on the neck as you lube the case. Just spray a little on a cotton patch (or your fingertips) and wipe each case before you run it up into the die. If you are using a steel neck bushing, be sure to wipe the neck as well. You can usually do a 6-10 BR-sized cases before you need to re-apply Ballistol on the patch. Ballistol is non-toxic, non-petroleum based, and will not harm your skin. It is very slippery, but can easily be removed with a rag or paper towel. Try it–you may retire your One-Shot. Derived from Pine Oil, Ballistol can also be used to protect wood stocks.
Use Heavier Lube for Case-Forming
Note, for heavy case-forming or necking up case necks, we still recommend a thicker lubricant, such as Imperial die wax. But for normal case sizing, after your neck has been expanded, Ballistol will do the job, and you won’t need to tumble the brass afterwards. All you need is a very thin layer of Ballistol, and this easily wipes off with a paper towel.
Neck-Turning Lubes
For lubing the neck-turning tool mandrel while turning case necks, many folks use a blend of STP® Oil Treatment and Mobil 1 lube. Chuckw2 reports: “Try STP and Mobile 1 Synthetic oil in a 50/50 mixture. Very slick, but it sticks so you will need to tumble your cases after turning.” STP is a very thick lubricant, that flows and clings almost like honey. Jason reports the STP blend comes off easily in an ultra-sound bath, using a bit of detergent. STP is also now available in a convenient 7-ounce tube, so you don’t have to buy a large bottle. Another even cheaper option is assembly lubricant. For turning his case necks, RStreich uses assembly lube from an auto parts store. He notes: “The brand I have is reddish in color and kind of sticky like honey. It’s far better than the Imperial die wax I was using before.”
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