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October 7th, 2012
One of our Shooters’ Forum readers, Trent from Louisiana, asked for help deciding between a 260 Remington and a 6.5×55 for his latest gun project. In the Forum thread, respected UK gun writer Laurie Holland provided a good summary of the differences between the two chamberings. Laurie writes:
 “The 6.5×55 case has 6 or 7% more capacity than the .260s, even more in practice when both are loaded to standard COALs with heavy bullets, which sees them having to seated very deep in the .260 Rem using up quite a lot of powder capacity. So loaded up for reasonable pressures in modern actions, the 6.5×55 will give a bit more performance.
The issue for many is what action length is available or wanted, the 6.5 requiring a long action. So sniper rifle / tactical rifle competitors will go for the .260 Rem with the option of the many good short-bolt-throw designs around with detachable box magazines. If a bit more performance is needed, the .260AI gives another 100-150 fps depending on bullet weight.
Brass-wise, you’ve got really good Lapua 6.5×55 off the shelf that needs minimum preparation, and it’s strong and long-lived. There is an Ackley version too that was popular in F-Class in Europe for a while that isn’t too far short of 6.5-284 performance. If you go for .260 Rem, the American brass isn’t as good but you can neck-up Lapua or Norma .243 Win and trim them (or neck-down .308 Win or 7mm-08). This has the downside that doing so usually creates a noticeable ‘doughnut’ at the case-shoulder junction, that may cause problems depending on how deep bullets are seated.
For purely target shooting, I think I’d go with 6.5×55 if I was making the choice again today for performance and brass-preparation reasons. In fact, I’ve considered going back to the gunsmith to have the barrel rechambered.
You want a multi-purpose rifle though and that makes things trickier depending on the bullet weight(s) you want to use. The [typical] 6.5×55 and 6.5-08 throats are really designed for 140s, so 90-120s make a long jump into the rifling. If you’re always going to use 130s and up, it’s less of an issue. If you want to use the lighter stuff, I’d say go for .260 Rem and discuss the reamer with the gunsmith to come up with as good a compromise as you can depending on the mix of shooting. 1:8.5″ twist is the norm and handles all the usual sporting and match bullets; you can go for a little slower twist if you won’t use the heavies.
Over here in the UK, in Scotland to be precise, we have a top sporting rifle builder (Callum Ferguson of Precision Rifle Services) who almost specializes in .260 Rem usually built on Borden actions. He throats the barrel ‘short’ so it’s suited to varmint bullets, but will still handle the 100gr Nosler Partition which he says is more than adequate for any British deer species including Scottish red stags.
Accuracy-wise, I don’t think there’s anything between them if everything else is equal. The 6.5 has a reputation for superlative accuracy, but that was high-quality Swedish military rifles and ammunition matched against often not-so-high-quality military stuff from elsewhere. Put the pair in custom rifles and use equally good brass and bullets and you’ll be hard pressed to tell them apart.” – Laurie Holland
 After Laurie’s helpful comments, some other Forum members added their insights on the 260 Rem vs. 6.5×55 question:
“To me, the .260 Remington has no advantage over the 6.5×55 if one is going to use a long action. Likewise, the only advantage the .260 has in a modern rifle is it can be used in a short-action. There is more powder capacity in the 6.5×55 so you have the potential to get more velocity plus there is a lot of reloading data available to you for loading at lower velocity/pressure if you choose. The Lapua brass is great and Winchester brass is pretty good at low pressures. Having loaded a good bit for both, the 6.5×55 would always get the nod from me. To me, if someone wants to use a short-action, the 6.5×47 Lapua is even a better option than the .260 for a target rifle.” — Olympian
“There is just one small item that has been missing from this conversation — the 6.5×55 has a non standard rim diameter of .479″ vs. the standard .473″ of a .308 and all of its varients. Depending on your bolt this may be an issue, or it may not.” — Neil L.
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August 8th, 2012
Creedmoor Sports is running a one-day sale, today only (August 8, 2012). Get 10% off the price of Lapua Brass, with order of two boxes or more. NOTE: This offer is limited to in-stock Lapua cartridge brass inventory only (supplies are limited). No coupon or discount code is needed — the discount will be applied at checkout!
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July 23rd, 2012
 Tarl Kempley is the 2012 NRA 3-Position Smallbore National Champion. Tarl combined a second-place finish in the Any Sights (scopes allowed) event with a fourth-place finish in the Metallic Sights event to end up winning the overall championship with a combined 2295-108X score. (The NRA 3P Smallbore National Championship is based on combined scores of the Metallic Sight Match and the Any Sight Match.)
NRA Smallbore Rifle 3-Position Championship
(Combined Metallic Sight and Any-Sight)
1. Tarl Kempley, 2295-108X
2. Kirsten Weiss, 2287-96X
3. Amanda Luoma, 2281-92X
4. Reya Kempley, 2276-107X
5. Christopher Abalo, 2276-100X
6. Benjamin Swanson, 2276-87X
7. Deanna Binnie, 2272-106X
8. Samuel Muegge, 2270-97X
9. Lisette Grunwell-Lacey, 2267-86X
10. Garrett Rabel, 2263-84X |
Tarl has been a top smallbore competitor for many years. He won the 2011 NRA Metric 3-Position National Championship, and, in 2009, Tarl won the 3-Position Metallic Sight Championship at Camp Perry. This year he pulled it all together to win the 3-Position Overall Championship, chalking up high X-Count along the way. Interestingly, the next three finishers were women: Kirsten Weiss (2287-96X), Amanda Luoma (2281-92X), and Reya Kempley (2276-107X).
 Weiss Shoots Iron Sights in Any Sight Match
Yet Finishes Second Overall
Team Lapua’s Kirsten Weiss provided the come-from-behind story of the match. Shooting through extremely adverse conditions during the Any Sight Match on Day 2, Kirsten rose from eighth place to finish Second Overall and High Woman. This is particularly remarkable because Weiss shot the Any Sight Match with metallic (iron) sights! The majority of the other shooters opted for scopes. With the winds howling at over 20 mph, and the temperatures 25 degrees cooler than on Day One, Weiss shot consistently in the prone, kneeling, and standing portions. Weiss captured the standing segment and finished consistently near the top in prone and kneeling. Weiss uses a well-traveled Anschutz rifle with old-fashioned wood stock.
Weiss Used Ammo Tested in Lapua Tunnel
“I was very happy with my shooting, especially in the tough conditions on Day Two,” reported Kirsten. “Back in April I was at the Grand Opening of the Lapua Rimfire Service Center in Arizona and was able to comparison test some lots of Midas+ and X-ACT with my rifle.” Weiss says the lots of ammo she selected for her gun “performed great”, as her performance proved.
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NRA Smallbore Rifle
3-P Metallic Sight Championship
1. SGT Joseph Hein, 1194-81X
2. CPT Christopher Abalo, 1193-76X
3. SSG George Norton, 1193-75X
4. Tarl Kempley, 1192-76X
5. Reya Kempley, 1191-80X
6. Amy Fister, 1190-72X
7. Kirsten Weiss, 1190-66X
8. Mackenzie Martin, 1189-65X
9. Amanda Luoma, 1188-68X
10. SSG Henry Gray, 1187-76X |
NRA Smallbore Rifle
3-P Any-Sight Championship
1. Benjamin Swanson, 1105-38X
2. Tarl Kempley, 1103-32X
3. Kirsten Weiss, 1097-29X
4. Amanda Luoma, 1093-24X
5. Garrett Rabel, 1092-39X
6. Candice Ramus, 1089-36X
7. Lisette Grunwell-Lacey, 1088-34X
8. Megan Hilbish, 1088-29X
9. Deanna Binnie, 1086-38X
10. Reya Kempley, 1085-27X |
CLICK HERE for more information on the NRA Smallbore Rifle National Championship.
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July 12th, 2012
 Vihtavuori has updated the loading information for a number of popular rifle chamberings. You can find the updated reloading data online in the Vihtavuori Reloading database. The updated online information supplements the Vihtavuori Reloading Guide (10th Edition) print version (and its PDF version). The online Reloading Database has been revised with updated and enhanced loading data (including some new powder options) for the following cartridges:
- .22-250 Remington
- .260 Remington
- 6.5×55 Swedish
- 6.5×55 SKAN
- 6.5-284 Norma
- 7mm-08 Remington
- 7x57R
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- .30-06 Springfield
- .300 WSM
- .300 Win Mag
- .300 RUM
- .338 Lapua Magnum
- 9.3×62
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NOTE: Vihtavuori promises that: “The updated PDF for the downloads section and the printed version of the guide will be available at the end of the year 2012″.
Story Tip by EdLongrange. We welcome reader submissions.
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June 13th, 2012
 Lapua has a very cool video — “eye candy” for any precision shooter. Definitely WATCH THIS VIDEO. This 12-minute video contains a surprising amount of “hard” info on Lapua products. As well, there are some amazing segments showing Lapua brass and rimfire ammo being produced. Watch carefully and you’ll see most of the processes used for forming and loading brass. Another short segment shows a Lapua technician inspecting a case for run-out. Neat.
The video spotlights some of the important American and international records set with Lapua ammo. You’ll see top 300m and Olympic rifle shooters in action, and there are also short comments from many champions, including American Benchrest legend Tony Boyer.
NOTE: This is long video — you may need to let it buffer (pre-load) for 10 seconds before playback. If that doesn’t work, let the entire video load, then hit the replay button.
Please enable Javascript and Flash to view this VideoPress video.
Yes, this video is first and foremost a marketing tool, but that doesn’t lessen that fact that it is fascinating to watch. Lapua’s video also does a great job making our sport seem important and exciting — NRA take note! We suspect many of you will want to save the video to your computer for future viewing. That’s easy to do. Just click on the link below. (Note: After downloading, we suggest that PC users play it back through Windows Media Player. You can then drag the Media Player corners to expand the video viewing size.)
CLICK HERE to download 25mb Lapua Video (fast connection recommended).
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May 3rd, 2012
 Recently, an AccurateShooter team including contributing writer German Salazar visited the Nammo Talley facility in Mesa, Arizona. We were given access to the new Rimfire Service Center and the .338 Lapua Magnum loading facility. The Rimfire Service Center is a brand new facility dedicated to supporting top-level rimfire shooters in all disciplines, including Prone, 3-Position, Silhouette, Benchrest and more. Lapua has over 2 million rounds of various grades of match ammunition on hand for shooters to test and purchase. The RSC has a 100-meter test tunnel where groups are measured under ideal conditions with electronic sensor-equipped “paperless” target frames placed at 50 meters and 100 meters. Shooters can make appointments to visit the center and test ammo in their own rifles. A detailed report on the RSC has just been released on German’s Rifleman’s Journal website.
CLICK HERE for Rimfire TEST CENTER ARTICLE.
.338 Lapua Manufacturing and Testing
The .338 Lapua Magnum facility is a super-sized version of the rimfire facility. With a 300-meter tunnel and pressure testing equipment on hand, Nammo’s engineering and loading staff have the ability to develop perfect loads for government clients with a variety of specific requirements. The loading facility has equally impressive technology and is well worth reading about. CLICK HERE to read German’s article about the .338 LM facility.
AccurateShooter.com will have more information on these two state-of-the-art facilitites, including video footage in the coming weeks. So stay tuned!
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April 14th, 2012
 In 2010, the staff of AccurateReloading.com Forum completed a massive .22LR Rimfire Ammunition Testing Project. Some 55 different types of ammo were tested, using a highly-accurate Swiss-made Bleiker rifle, with a 2-stage trigger. All ammo varieties were tested at 50 yards, 75 yards, and 100 yards, shooting five, 5-shot groups at each distance. Though these tests were completed some time ago, many readers have requested a “reprint” of the ammo rankings, so we’ve republished this data below.
The results are fascinating to say the least (and perhaps eye-opening). The tester observed: “I got some amazing groups, and some which are, frankly, absurdly bad! This has re-enforced what I had experienced with 22 ammo in the past — that is being consistently inconsistent.”
While we strongly caution that .22LR rimfire ammo may work well in one gun and not another, and ammo performance can be improved through the use of barrel tuners, the AccurateReloading.com research provides invaluable guidance for smallbore shooters. Overall, the testers burned through over 4,000 rounds of ammo, and you can see the actual test targets online. To read all the test reports, and view target photos visit AccurateReloading.com.
The lists below rank the average accuracy (by brand) of five, 5-shot groups shot at 50, 75, and 100 yards. CLICK HERE for Complete Test Results with target photos.
| 50-Yard Results |
75-Yard Results |
100-Yard Results |
0.162 Eley Tenex Ultimate EPS
0.164 Lapua Midas Plus
0.177 Lapua Polar Biathlon
0.187 Eley Match EPS
0.193 Eley Match
0.203 Lapua Midas M
0.215 Lapua Center X
0.216 Western Value Pack
0.229 Lapua Signum
0.241 Lapua Master L
0.243 Eley Pistol Match
0.256 Olin Ball
0.256 Akah X-Zone
0.261 Lapua Midas L
0.261 Lapua Master M
0.263 Eley Tenex Semi Auto
0.270 Lapua Super Club
0.272 Eley Tenex
0.303 Lapua Standard Plus
0.312 CCI Standard Velocity
0.319 RWS R 50
0.319 Eley Standard
0.328 SK High Velocity
0.339 Eley Club Xtra
0.340 Winchester T22
0.356 Federal Champion
0.362 Eley Subsonic HP
0.371 CCI Mini Mag
0.376 Federal American Eagle
0.377 Norinco Target
0.380 Sellier & Bellot Club
0.384 Eley Club
0.387 Eley Sport
0.388 Totem
0.392 Swartklip Match Trainer
0.398 Federal Gold Medal
0.403 Swartklip HV
0.409 Eley Match Xtra Plus
0.424 Sellier & Bellot Std
0.443 Remington Target
0.461 Lapua Crow HP
0.475 Eley Silhouex
0.479 Magtech
0.498 Eley High Velocity
0.513 Winchester Super X
0.516 Kassnar Concorde
0.539 CCI Blazer
0.560 Winchester Supreme Pistol
0.576 Norinco Pistol Revolver
0.593 SK Standard
0.611 Sellier And Bellot HP
0.626 SK Standard HP
0.686 Logo HV
0.956 Pobjeda Target |
0.274 Lapua Center X
0.283 Lapua Standard Plus
0.295 Eley Tenex Ultimate EPS
0.307 Lapua Midas M
0.329 Lapua Master M
0.346 Eley Match
0.373 Lapua Polar Biathlon
0.399 RWS R 50
0.432 Lapua Midas L
0.448 Eley Tenex Semi Auto
0.467 Eley Match EPS
0.474 Lapua master L
0.491 Eley Match Xtra Plus
0.494 CCI Standard
0.496 Eley Subsonic HP
0.507 Eley Sport
0.512 Federal American Eagle
0.513 SK High Velocity
0.514 Eley Standard
0.516 Eley Tenex
0.516 Lapua Crow HP
0.532 Western Value Pack
0.533 Fed. Champion Target
0.535 Lapua Midas Plus
0.564 Akah X Zone
0.566 Olin Ball
0.573 Eley Club Xtra
0.616 Lapua Signum
0.631 Winchester T22
0.639 Swartklip HV HP
0.641 Eley Club
0.642 Eley Silhouex
0.647 CCI Mini Mag
0.679 Eley Pistol Match
0.682 Swartklip Match Trainer
0.690 Federal Gold Medal
0.692 Remington HV
0.703 Lapua Super Club
0.720 Winchester Super X
0.738 Eley High Velocity
0.759 Kassnar Concorde
0.765 Sellier And Bellot Club
0.770 Winch. Supreme Pistol
0.770 Norinco target
0.775 CCI Blazer
0.802 Norinco Pistol Revolver
0.841 LVE Logo HV
0.855 Sellier & Bellot Std
0.871 Magtech
0.923 Sellier & Bellot HP
0.934 SK Standard HP
1.017 Remington Target
1.257 Totem Standard
1.442 SK Standard
1.578 Pobjeda target |
0.455 Eley Match
0.510 Lapua Midas Plus
0.549 Lapua Midas M
0.611 Lapua Polar Biathlon
0.611 Eley Tenex Ultimate EPS
0.619 Eley Match EPS
0.622 Eley Club
0.630 Lapua Center X
0.631 RWS R50
0.679 Eley Tenex Semi Auto
0.694 Lapua Midas L
0.729 Eley Tenex
0.739 Lapua Master L
0.753 Lapua Super Club
0.785 Lapua Master M
0.831 Eley Sport
0.851 Eley Match Xtra
0.859 Lapua Standard Plus
0.867 Akah X-Zone
0.877 Eley Pistol Match
0.907 Norinco Target
0.924 Eley Silhouex
0.939 CCI Standard
0.952 Eley Subsonic HP
0.963 Magtech
0.970 Olin Ball
0.978 Kassnar Concorde
0.995 Eley Club Xtra
1.009 Western Value Pack
1.032 Federal Champion
1.087 Norinco Pistol Revolver
1.100 CCI Mini Mag
1.112 Lapua Crow HP
1.143 Winchester T22
1.142 Federal Gold Medal
1.144 federal American Eagle
1.156 Swartklip Hollo Point
1.165 Lapua Signum
1.170 Swartklip Match Trainer
1.175 Fed. Champion Value Pk
1.182 SK high Velocity
1.201 Totem
1.224 Winchester Super X
1.358 Eley Standard
1.367 Remington High Velocity
1.375 CCI Blazer
1.414 Eley High Velocity
1.450 Remington Target
1.504 LVE Logo
1.813 SK Standard
1.879 S&B Club
1.947 S&B Hollow Point
2.073 SK Standard HP
2.221 S&B Standard
2.266 Pobjeda Target |
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April 7th, 2012
 This past weekend, Forum member Ron Boyd shot a 1.462″ five-shot Light Gun group at 1000 yards in an IBS benchrest match at the MidWest Benchrest Club in Yukon, Missouri. Ron shot a 6mm Dasher with Bartlein barrel and PR&T stock. Ron’s 1.462″ group is 0.065″ off the existing IBS 1000-yard Light Gun record. Ron’s group also happens to be .011″ smaller than the current NBRSA 1K Light Gun record, 1.473″ shot by Bill Schrader in 2002. (But this is not counted by the NBRSA since Ron shot in an IBS match.) Ron’s group was shot in the first relay of the day, in good conditions. The group had three (3) shots clustered in under one-third inch (0.03 MOA)!
 This is truly a spectacular achievement. We think this has to been one of the smallest five-shot groups ever shot at 1000 yards, and probably the smallest ever with a 6mm cartridge. At 1000 yards, 1 MOA is 10.47″. This means that Ron’s group measured in at 0.1396 MOA! To give you an idea of how small Ron’s group really was, at left is a 1.462″ circle shown at 100% scale, along with a quarter at 100% scale.* The circle represents the center-to-center distance of Ron’s five shots at 1000 yards. Total vertical dispersion was just under 1.2″ for five shots. The vertical for the top four shots (measured with OnTarget software) was just 0.398″! Shown below is a flat-bed scan of the actual target. Notice the tight cluster of 3 shots touching. That’s a dime in the photo added for scale.
 Ron Boyd’s 6mm Dasher Load
 Ron loaded a stout charge of Long Range Match surplus powder with Spencer 103gr bullets seated about .010″ OFF the lands. The bullets were “right out of the box”, NOT pointed. This powder has burn-rate characteristics very similar to Alliant Reloder 15, and Ron used his regular RL15 charge, adjusted by half a grain or so. Ron was using no-neck-turn “brown-box” Lapua 6BR brass formed into the 40° improved 6mm Dasher case. The unturned, loaded case necks measure about 0.2695″, yielding .0015″ total clearance in a 0.271″ chamber. The brass used for the 1.462″ group had seven previous firings. Ron anneals his brass after every firing using a Benchsource annealing machine. Ron told us: “The Benchsource is the greatest annealing machine there is, as far as I’m concerned.” Ron ultrasonically cleans his brass and then tumbles his brass after the ultrasound process. He does NOT use an internal neck lubricant. He does NOT uniform his primer pockets and he does NOT ream his flashholes. Ron believes this load was running “right around 3000 fps”, but he has not chron’d it yet using the new Bartlein barrel.
Ron Boyd’s 6mm Dasher Light Gun
Ron’s 17-lb Light Gun featured a BAT SV Action, Bartlein 30″ 1:8″ twist, 0.237″ land barrel, and Precision Rifle & Tool “Hammerhead” benchrest stock with 5″-wide wings in front. This stock weighs 4 lbs 1 oz. with an aluminum butt plate and is about 36.5″ long with integrated rails on the bottom of the “wings”. Ron’s friends Rich Griffin and Jerry Kloeppel did the chambering and bedding. Ron recently put the Bartlein barrel on the gun. Ron estimates that the barrel had only 40 rounds through it when it produced the 1.462″ group. Ron tells us: “This new barrel is great, and the 5″ PR&T stock really works. I luckily pulled the trigger at the right time.” Ron told us that this rifle shot in the high ones/low twos at 100 yards during testing.
PR&T Hammerhead Stock (catalog photo)
*The circle and quarter should appear “true size” when viewed at the most common monitor resolution. If you are running a higher resolution on your monitor, the illustration will appear small than actual size.
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April 3rd, 2012
 The impressive new Lapua Rimfire Service Center opens in Mesa, Arizona on April 24, 2012. Patterned after the world-renowned Lapua Service Center in Schönebeck, Germany, this facility gives American shooters the same opportunity to test various types and lots of rimfire ammunition, in their own firearms, under ideal conditions. This assures that customers can purchase not only the best type of ammunition for his or her particular rifle, but also the specific lots of ammo that perform best. Experienced competitive rimfire shooters know that the ability to select a particular lot of ammunition that performs best in their firearm(s) means a world of difference in a match.
Until now, the ability of a shooter to do this vital testing was dependent on the small quantities of ammunition of various lots on hand, generally without any guarantee that a vendor could provide more of whatever lot turned in the best results. Lapua will maintain an inventory of approximately two million rounds of rimfire ammunition on site — a wide variety of different types and grades, and many different lots. Lapua states that: “Our goal is that you, the shooter, will be able to purchase sufficient quantities of the best ammo for your needs. In future matches, you’ll be able to know that the ammo you take to the line is truly the very best.”
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CLICK “PLAY” to HEAR Adam Braverman TALK about Lapua’s New Arizona Rimfire Test Center:
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[haiku url=”http://accurateshooter.net/Video/bravermanmemo.mp3″ title=”Braverman Voice Memo”] |
High-Tech Electronic Targets in 100m Test Tunnel
At the heart of Lapua’s operation is a new 100m test tunnel. Fully instrumented with state-of-the-art Meyton electronic targeting systems, the Mesa facility offers the unique ability to test ammunition at both 50 meters and 100 meters, simultaneously with a single string. As the bullets pass through the screen at 50 meters, a group will appear on the first targeting screen. As the bullet continues its flight downrange, it will also be picked up on a second screen at the 100 meter line. This approach allows the shooter to see, instantly, which ammunition performs best at both 50m and 100m distances.
Shooters are encouraged to visit the new Rimfire Service Center. Testing is by appointment only, with a $50.00 range fee. For more information, visit www.Lapua.com or email lapua [at] nammoinc.com. The Lapua Rimfire Service Center is located at 4051 N. Higley Road, Mesa, AZ 85215, on the grounds of Nammo Tactical Ammunition. The Lapua Service Center, just 20 miles from Phoenix Sky Harbor Int’l Airport, is easy to reach by major roadways. Not far away, in the general Phoenix area, you’ll find a wide variety of hotels, restaurants, golf courses, plus the outstanding Ben Avery Shooting Range.
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February 9th, 2012
Forum member Skeeter has a 6mm Dasher falling block varmint rifle. The Dasher case is based on the 6mm BR Norma cartridge with the shoulder blown forward about 0.100″ and out to 40°. This gives the Dasher roughly 3.5 grains added capacity compared to the standard 6BR.
Last year, Skeeter needed to form 300 cases for varmint holiday. Skeeter decided to fire-form his brass without bullets. This method avoids barrel wear* and saves on components. There are various ways to do this, but Skeeter chose a method using pistol/shotgun powder, some tissue to hold the powder in place, Cream of Wheat filled to within an 1/8″ of top of the neck, and a “plug” of tissue paper to hold it all in place. Shown below are cases filled with a pistol/shotgun powder charge topped with Cream of Wheat and then a tissue paper plug.
To ensure the case headspaced firmly in his Dasher chamber, Skeeter created a “false shoulder” where the new neck-shoulder junction would be after fire-forming. After chamfering his case mouths, Skeeter necked up all his cases with a 0.257″ mandrel (one caliber oversized). Then he used a bushing neck-sizing die to bring the top half of the neck back down to 0.267″ to fit his 0.269″ chamber. The photo below shows how the false shoulder is created.
After creating the false shoulder, Skeeter chambered the cases in his rifle to ensure he could close the bolt and that he had a good “crush fit” on the false shoulder, ensuring proper headspace. All went well.
The next step was determining the optimal load of pistol powder. Among a variety of powders available, Skeeter chose Hodgdon Titewad as it is relatively inexpensive and burns clean. The goal was to find just the right amount of Titewad that would blow the shoulder forward sufficiently. Skeeter wanted to minimize the amount of powder used and work at a pressure that was safe for his falling block action.
Working incrementally, Skeeter started at 5.0 grains of Titewad, working up in 0.5 grain increments. As you can see, the 5.0 grain charge blew the shoulder forward, but left it a hemispherical shape. At about 7.0 grains of Titewad, the edge of the shoulder and case body was shaping up. Skeeter decided that 8.5 grains of Titewad was the “sweet spot”. He tried higher charges, but the shoulder didn’t really form up any better. It will take another firing or two, with a normal match load of rifle powder and a bullet seated, to really sharpen up the shoulders. Be sure to click on the “View Larger Image” link to get a good view of the cases.
The process proved to be a success. Skeeter now has hundreds of fire-formed Dasher cases and he hasn’t had to put one bullet through his nice, new match-grade barrel. The “bulletless” Cream of Wheat method allowed him to fire-form in a tight-necked barrel without neck-turning the brass first. The only step now remaining is to turn the newly Dasher-length necks down about .0025″ to fit his 0.269″ chamber. (To have no-turn necks he would need an 0.271″ or 0.272″ chamber).
Skeeter didn’t lose a single case: “As for the fire-forming loads, I had zero split cases and no signs of pressure in 325 cases fire-formed. Nor did I have any misfires or any that disbursed COW into the action of the firearm. So the COW method really worked out great for me and saved me a lot of money in powder and bullets.” To learn more about Skeeter’s fire-forming process, read this Dasher Fire-Forming Forum Thread.
*Skeeter did have a fire-forming barrel, but it was reamed with a .269 chamber like his 10-twist Krieger “good” barrel. If he fire-formed with bullets, he would have to turn all 300 necks to .267″ BEFORE fire-forming so that loaded rounds would fit in the chamber. Judging just how far to turn is problematic. There’s no need to turn the lower part of the neck that will eventually become shoulder–but how far down the neck to turn is the issue. By fire-forming without bullets now he only has to turn about half the original neck length, and he knows exactly how far to go.
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February 2nd, 2012
Many precision-oriented shooters are discovering that the “middle ground” in cartridge size is optimal for the 100gr to 115gr match bullets. With a mid-sized cartridge, you can run these pills faster than a 6BR or Dasher, without giving up much, if any, accuracy to a 6BR or BR Improved. The most accurate 600-yard rifle at this Editor’s local club is a 6-6.5×47. It can shoot as tight as a 6BR past 300 yards, plus it offers better ballistics, pushing 105 Bergers at 3140 fps.
 If you’re considering a mid-sized 6mm cartridge for your next rifle, you’re probably wondering WHICH mid-size 6mm cartridge is best. We are often asked “what’s the difference between the 6×47 Swiss Match, the 6XC, and the 6.5×47 Lapua necked down to 6mm?” All three cartridges have 30° shoulders and fit a .308-sized boltface. However, alone among the three, the 6mm-6.5×47 has a small primer pocket and small flash hole. The 6×47 Swiss Match (made by RUAG), and the 6XC (produced by Norma), have a large primer pocket and large flash hole, just like a .308 Winchester.
Forum member DesertLefty has provided a line-up photo, with 6mmBR and .260 Rem cases provided for comparison. As you can see, the three mid-sized cases (6x47SM, 6.5×47 Lapua, and 6XC) are very similar. The Swiss Match has the longest neck, while the 6XC enjoys the highest capacity. But performance is very similar among the three cartridges (with the 6.5×47 necked down to 6mm). The same powders, (particularly H4350, Reloder 17, and IMR 4007SSC) work well in the 6×47 SM, the 6XC, and the 6-6.5×47 Lapua. The parent 6.5×47 Lapua case is rated at 63090 psi, while the new CIP rating for the 6XC is 63844 psi (4400 BAR). Both the necked-down Lapua brass and the Norma-brand 6XC brass can hold stout loads. Though the 6mm-6.5×47 has slightly less powder capacity than the 6XC, max velocities with 105-108gr bullets are quite similar. However, you should not substitute loads from the 6XC directly to the 6mm-6.5×47 or vice-versa. Because of the different case capacities and primer sizes, you should work up loads separately for each cartridge.
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October 13th, 2011
NRA Headquarters in Fairfax, Virginia was recently visited by Raimo Helasmaki of the Nammo Group. Based in Finland, Nammo is the parent company of Lapua, manufacturer of ammunition and reloading components. Helasmaki, Executive VP of Nammo’s Small Caliber Division, was in the Washington, DC area for the annual Association of the U.S. Army (AUSA) trade show. We’re glad to see a top European executive travel to the USA where he can get direct feedback from American shooters on his company’s product line.
CLICK HERE for AUSA 2011 Annual Meeting & Exposition Web Site
Lapua was founded in 1923 as a state-owned cartridge company. Over the years, Lapua kept perfecting its product in response to the needs of its worldwide customer base. Lapua remains an industry leader, creating some of the most accurate ammunition, brass, and bullets on the planet. Proof is in the performance — 80% of the Biathlon medals at the 2010 Winter Olympic in Munich were won by athletes using Lapua ammunition.
Helasmaki met with several NRA officials in Fairfax, including NRA’s General Operation Executive Director Kayne Robinson. To wrap things up, he toured the National Firearms Museum, guided by Phil Schreier, Senior Museum curator (at left in photo above).
Photos and story courtesy The NRA Blog.
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