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November 6th, 2009
 Electronic scales, even expensive lab-grade units, can be influenced by a wide variety of electronic “emissions”. We’ve seen Chargemasters being affected by cordless telephones and older CRT computer monitors. When stray emissions interfere with digital scales, you can get erractic readings, or the scales can drift with time. The smart thing to do, of course, is to physically isolate your digital scale from the sources of interference — keep them away from computer equipment and wireless base units. If you still have problems with drift or unstable read-outs, thankfully there are some inexpensive accessories that can restore your scale’s reliability. Reader Scott G. found a ferrous (magnetic) filter that attaches to the cord of his digital scale. This inexpensive filter cured his scale’s tendency to drift.
Scott explains: “I had an issue with a drifting zero on my PACT, which made it unusable. It was happening at my house, but not at other locations, such as my office. The fix for my issue was a ferrous noise filter on the scale’s power supply cord. It is basically a hinged barrel-shaped plastic tube that contains two magnets. Near the scale end of the cord, lay the cord into the slot, wrap it back through, then close the filter around the cord. Before installing the ferrous filters, my scale would drift off as much as 2.9 grains, which was being caused by some type of electronic ‘noise’ in the environment. The PACT is absolutely stable now.”
Finding and Installing Magnetic Noise Filters
Scott tells us: “You’ll see a lot of these type filters on the cords for computer acessories. You may have to experiment to find one that works for you. Some have different magnets that have different filtering abilities. My filter cost about $3.00. I purchased it at Randolph and Rice Industrial Electronics in Nashville, TN, item #SF.065.” You should also be able to find these kind of filters at Fry’s, Radio Shack, or other electronics supply stores.
While some magnetic filters require the power cord to run straight through, other designs allow you to loop the cord once around the filter (see photos). Looping the cord actually enhances the performance of the filter. You can also get improved filtration of electronic interference by putting a magnetic ‘noise’ filter on BOTH ends of your scale’s power cord.
November 1st, 2009
For years, Sinclair Int’l has offered a reamer for small, BR-sized flash-holes, product #07-3000. This popular tool features an 0.0625″ cutting tip to uniform the .059″ flash-holes on Lapua 220 Russian, 6mmBR, 6.5 Grendel, and 6.5×47 brass. Sinclair’s tool works from the outside, indexing off the primer pocket. For those people who believe in the utility of reaming small flash-holes (an open question), the Sinclair “outside-in” design may be the best. But until now, there has been no equivalent “outside-in” reamer for cases with large flash-holes.
 Sinclair recently introduced its NEW .081″ large flash-hole reamer, item #07-3081. This $37.50 tool is designed to ream standard flash holes (.080″) to exactly .081 inch, both for small primer pockets and large primer pockets. This tool will remove most burrs left in manufacturing and will uniform the flash-hole diameter of all your brass to ensure consistent ignition.
Double-Ended Design Works with Both Small and Large Primer Pockets
Sinclair’s all-stainless three-piece tool features a double-ended reamer guide for both large and small primer pockets, a knurled handle for easy turning and a straight fluted .081″ reamer. It is designed for all cartridges (with either small OR large primer pockets) with standard .080″ flash holes.
As one Sinclair customer noted: “This is a tool that has been needed for a long time.” As a result, the .081″ flash-hole reamers have been back-ordered through 12/1/2009. But if you order now you should have yours within 5-6 weeks.
IMPORTANT: We recommend, if you order this tool, that you mic the actual diameter of the cutter tip. We have found that some flash-hole reamers, of ALL brands, arrive with slightly oversized cutter tips. Indeed we’ve seen tip diameters of other brands (not Sinclair) vary by as much as .006″ (six-thousandths). You want to make sure you don’t have an oversize cutter before you ream hundreds of cases.
October 25th, 2009
 Glock has announced that it will introduce a new “Fourth Generation” Glock handgun with an interchangeable grip back-straps and improved ergonomics. The new “GEN-4″ Glock will probably be unveiled at the January 2010 SHOT Show in Las Vegas, though Glock hasn’t commited to a SHOT Show release. According to the Guns, Holsters & Gear Blog, “[GEN-4] Glocks are rumored to have a textured finish that is not nearly as aggressive as the RTF2 introduced at the 2009 SHOT Show. The new finish is said to be rougher than the prior generations, but easier on the hands and clothes than the RTF2.”
Glock has been hugely successful selling polymer-framed handguns to the law enforcement, military, and civilian markets. While Glocks enjoy an enviable reputation for durability and reliability, for many handgunners, Glock ergonomics are second rate. This editor has personally trained novice shooters with both a Glock 17 and Sig p226 9mm. More often than not, when the novices switch from the Glock to the Sig, their 10-yard groups shrink from basketball size to softball size — primarily because of the superior Sig grip size and shape. That’s not to say that Glocks are not accurate — they can be very accurate — it’s just that the Glock grip is far from ideal for many shooters.
 For decades Glock has stubbornly refused to redesign or improve the grip on Glock handguns (other than adding finger grooves of questionable utility). Meanwhile, Beretta, Smith & Wesson, and Walther have offered polymer-framed handguns with more comfortable, ergonomic grips fitted with interchangeable grip back-straps. These “swappable” back-straps come in different sizes to provide a better, more custom fit for the shooter. Women with small hands, in particular, benefit from a thinner back-strap.
The success of Smith & Wesson in securing large police contracts for its adjustable-gripped, S&W M&P pistol has finally prompted Glock to come up with a major grip redesign. Glock has been losing market share as police departments nationwide have traded in their Glocks in favor of the more ergonomic Smith M&Ps.
October 22nd, 2009
 The 2010 edition of the Hodgdon® Annual Manual has just been announced, and should be at newstands in January 2010. Now in its 7th year, the Hodgdon Annual Manual includes over 5,000 rifle and pistol loads, with information on 56 Hodgdon, IMR® and Winchester® powders. The new 2010 Manual features 44 cartridge updates, brand new data for the 6.5 Grendel and 6.5 Creedmoor, and updated propellant burn rate and usage charts.
Extensive reloading information is provided for popular cartridges such as the 17 Remington, 223 Remington, 204 Ruger, 6PPC, 308 Winchester, 338 Federal and more. In addition, the 2010 Manual includes articles by top gun writers like Layne Simpson and Jim Carmichael plus many other resources for shooters and reloaders.
Articles in the 2010 Hodgdon Annual Manual spotlight the new varmint/match powder, IMR 8208 XBR. Test lots of this new powder have shown truly exceptional temperature stability. In addition, IMR 8208 XBR should deliver excellent accuracy in cartridges such as the 6mm PPC, 6BR, 22BR, and .308 Winchester. Lou Murdica and Jim Carmichael have already recorded impressive benchrest wins with prototype IMR 8208 XBR.
The 2010 Hodgdon Annual Manual costs $8.99 and should be available at newsstands and gun dealers by January 2010. For more on the manual contact Hodgdon at 913-362-9455, visit Hodgdon.com, or write to 6231 Robinson, Shawnee Mission, KS 66202.
October 21st, 2009
Here’s a new product for shooters who need to make rapid zoom changes with their optics. The MGM Switchview is a small, lightweight lever that clamps around the power adjustment ring of variable power scopes. Made from anodized 6061/T6 aluminum, the Switchview allows the user to quickly adjust the scope’s power setting with a push or pull of the lever, without taking your head off the gun. That should help 3-gun competitors who must rapidly switch from near to far targets and back again.
The MGM Switchview works with short, tactical optics as well as high-magnification long-range scopes. Only slightly taller than most target style turrets, the lever is easy to use, even while wearing gloves or in slippery or wet conditions. The manufacturer says that: “Whether you are glassing a large area for a target and then zooming in to make the shot without loosing your sight picture, or you need to transition from far targets to [close] targets in a hurry, the MGM Switchview will get to the magnification setting you need quickly and easily.”
The MGM Switchview is now available for a variety scopes, including the Burris XTR, Leupold CQT, Leupold Mark IV (illum. reticle), Millet 1-4x24DMS, and Nightforce NXS. And soon MGM plans to build Switchviews for the IOR Valdada 1-4 and 1.4-8, Leupold VXII and VXIII, and Nightforce NXS Compact.
MGM Switchview zoom levers cost $59.95 and come standard in anodized black. However, the levers can be special ordered in custom colors for an extra $12. (Add 3 weeks delivery time for custom color orders.)
For more info, visit MGMswitchview.com. To order, call 208-454-0555 or 888-767-7371 (toll free), or email travis [at] mgmtargets.com. You can also contact Mike Gibson Manufacturing, 17891 Karcher Rd., Caldwell, ID 83607 .
October 17th, 2009
LINK: March 33-55x52mm ‘Eyepiece Zoom’ Scope
This is a revolutionary new high-magnification scope, with the zoom in the eyepiece. It provides all a BR shooter could want… from 100 to 1000 yards.
October 17th, 2009
LINK: Water Transfer Printing for Stocks
Using a water-dipping process, the folks at Hydro-Dip LLC in Idaho produce stunning photo-realistic graphic coverings for gun stocks. And it costs less than a custom paint job.
October 16th, 2009
 Krieger Barrels, respected maker of cut-rifled match and hunting barrels, announced it will offer 5R rifling for 6mm, 6.5mm, 7mm, and .308 caliber barrels. This kind of rifling features 5 lands and 5 grooves, but the lands are angled (slanted) on the sides (rather than 90°) for a gentler transition between land and groove. Krieger’s 5R rifling slants BOTH the leading and trailing edge of the lands (unlike “ratchet” rifling which is angled on one side only). 5R rifling also places each land opposite a groove. Having lands opposing grooves, along with slanted sides on the lands, is thought to give a better gas seal and reduced fouling. Additionally, some folks believe 5R rifling reduces jacket deformation by displacing less jacket metal. Overall, proponents of 5R rifling say it helps a barrel foul less and deliver more velocity than conventional rifling.
5R rifling will add $30 to the cost of a Krieger barrel. Krieger will NOT offer 5R rifling for gas gun barrels. Additionally, 5R rifling is offered only for constant twist-rate barrels. So, you can NOT get a gain twist barrel with 5R rifling. At this time 5R rifling is limited to 6mm, 6.5mm, 7mm, and 30 caliber bores, as listed in Krieger’s official announcement:
“Thanks to approval by Boots Obermeyer, Krieger Barrels, Inc. is now offering the true Obermeyer 5-R rifling pattern as an option on limited calibers with our barrels. We are very proud of the fact that Krieger Barrels was chosen as the only Obermeyer-approved maker of his style of 5-R rifling in North America. At this time we are limiting the 5-R option to the calibers listed below, but may offer others in the future as greater demand arises. There is a $30.00 up-charge to the base cost of the barrel for 5-R rifling. Currently available calibers:
– 6mm (.236″ & .237″ bore diameters, .243″ groove)
– 6.5mm (.256″ bore, .264″ groove)
– 7mm (.277″ bore, .284″ groove)
– .30T Palma (.3065″, .3070″ & .3075″ groove diameters)
– .308 cal (.300″ bore, .308″ groove)
5-R rifling is ONLY available in standard bore/groove dimensions listed and standard twist rates at this time. Please call if you have questions about availability of a certain caliber/twist combination. Please note, we are not, and have no plans to offer 5-R rifling in our finished ‘Gas Gun’ lines of M14, M1 Garand, AR-15, and AR-10 variants.”
5R Rifling in Production Guns
In the past, limited runs of Remington 700 tactical rifles, including some LE and SS (stainless special) models, have been offered with factory hammer-forged 5R barrels. These rifles have a reputation for shooting faster and more accurately than Rem 700s with conventional factory barrels. The Remington 5R barrels, though based on Obermeyer designs and similar to Mike Rock 5R barrels produced for the Army’s M24 sniper rifles, are NOT cut-rifled, but are produced in-house using the hammer-forging process.
Thompson/Center (T/C) Icon and Venture rifles currently feature 5R factory barrels. On T/C 5R barrels, the sides of each land are cut at a 65° angle vs. a 90° angle for standard rifling. See diagram. T/C claims that “because the edges of each land do not cut into and deform the bullet jacket… there will be less jacket fouling in the grooves”. T/C says this produces “greater bullet stability over multiple shots, and ultimately a rifle that’s easier to clean[.]”
October 10th, 2009
Here’s a new product we found on SWFA.com. Minox, famed maker of miniature cameras, has released the new Minox Weatherstation to compete with the Kestrel weather meters. The Minox is very compact and very light. It measures 4.68″ H x 2.28″ W and is just 3/4 of an inch thick. And it weighs just 2.36 ounces (67 grams)! This is definitely light and small enough to be carried in a shirt pocket.
 The Minox Weatherstation has all the functions you’d expect, plus a few more: Wind speed, Barometer, Altimeter, Thermometer, Hygrometer (Humidity), Windchill, Dewpoint, Clock, Stop-Watch, Alarm, Timer, Race Timer. Of course it can display both °Celsius and °Fahrenheit, and the Hygrometer reads from 1% Relative Humidity through 100% Relative Humidity. The barometer function uses five graphically arranged columns on the LC display to show not just the current air pressure hPa, but also changes which have occurred in the last 24 hours.
We like the fact that the Minox offers timing functions as well as weather data. This way the Minox can do double-duty as a match timer. That’s one less piece of kit to bring to the range.
 With a “street price” of $249.00, the Minox Weatherstation is priced on a par with the Kestrel 4000 and is about fifty bucks cheaper than Kestrels’ top-of-the-line 4500 model. How does the Minox stack up against the Kestrels? Well, the Kestrel 4000 outputs Density Altitude, while the Minox (apparently) does not. The Kestrel 4000 can also record data points and download these to a computer. The Minox doesn’t offer a PC interface. The more expensive Kestrel 4500 has a digital compass so it can plot wind directions (crosswind, headwind, tailwind). It seems then, that the main advantages of the Minox are compact size and light weight (2.4 oz. for Minox vs. 3.6 oz. for Kestrel 4000).
October 8th, 2009
In our report about the new Tactical Rimfire discipline pioneered in California, we predicted that the major manufacturers would eventually develop rifles tailored for this fun, low-cost shooting sport. Sure enough, Ruger has released a new version of its popular 10/22 rifle that would be well-suited for tactical rimfire matches.
The new Ruger 10/22VLEH Target Tactical Rifle (TTR) features a Hogue OverMolded® synthetic stock, and a compact 16-1/8″ bull barrel (.920″ OD). The Hogue stock comes with double palm swells, a varminter-style forend, and sling swivel studs. Ruger’s TTR ships with a scope rail on top of the receiver, and Ruger includes an adjustable (non-swivel) bipod with the rifle.
Overall, there is nothing really ground-breaking about this rifle, but Ruger has included some useful upgrades (stock, scope rail, bipod), that make the rifle more suitable for gun games. Rather than buy a low-end 10/22 and toss the barrel and original stock, a shooter can now buy a 10/22 that’s pretty much ready to go (except for a trigger upgrade). Adults shooting the new 10/22 TTR will want to add buttpad spacers as the gun ships with a very short 12 3/4″ length of pull from the factory.
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