To celebrate its 90th anniversary, Lapua invited six of its shooting team members to visit the firm’s ammunition factory in Lapua, Finland. The team members hailed from six countries around the world: Kevin Nevius (USA), Eva Friedel (Germany), Josselin Henry (France), Charlotte Jakobsen (Denmark), Kim-Andre Lund (Norway), and Peter Sidi (Hungary). Watch the video to follow these six shooters as they tour the Lapua ammo factory, and then compete in a 100m/600m fun match at Lapua’s test range.
See Lapua Ammunition Factory from the Inside
After being greated by Nammo Lapua CEO Raimo Helasmäki, the six lucky shooters got to tour production facilities, visit the old cartridge factory museum, and share ideas with Lapua R&D engineer Tommi Tuuri. The engineer observed: “No matter how much you calculate, there are always some surprises — things you can only know from the test runs.”
Competition at 100m and 600m
The trip finished with a friendly “bragging rights” match at Lapua’s own Ampumarata Shooting Range. These six champions had to quickly master two very different rifles, a Panda-actioned 6PPC benchrest rig for 100m and a SAKO TRG-42 in .338 Lapua Magnum for long range (600m). Kim-Andre Lund from Norway won the benchrest match with a 0.157″ (3.98mm) group. Not bad for a position shooter not familiar with this kind of gun, or this rest configuration. Kim observed: “I think maybe I’m in the wrong discipline, maybe benchrest is the thing for me”. Check out his target at right.
The USA’s own Kevin Nevius posted the top score with the big .338 LM. Kevin had a great time: “I’m a bonafied gun nut… so to come to a factory that manufactures ammunition is a dream come true.”
This video features a factory walk-through showing bullet-making, cartridge forming, and bullet packaging. Near the end (at 5:40 time-mark) is a fascinating sequence showing the high-speed robotic arms that pick loaded ammunition from the assembly line.
Beautiful Lapua 6.5-284 brass awaits packaging and shipping.
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Conventional .308 Winchester brass has a large primer pocket with a large, 0.080″-diameter flash hole. In 2010, Lapua began producing special edition .308 Win “Palma” brass that has a small primer pocket and a small flash hole, sized 1.5mm (.059″) in diameter. Tests by U.S. Palma Team members showed that the small-flash-hole .308 brass possibly delivers lower Extreme Spread (ES) and Standard Deviation (SD) with some bullet/powder/primer combinations. All things being equal, a lower ES should reduce vertical dispersion at long range.
Why Might a Small Flash Hole Work Better?
The performance of the small-flash-hole .308 brass caused some folks to speculate why ES/SD might be improved with a smaller flash hole. One theory (and it’s just a theory) is that the small flash hole creates more of a “jet” effect when the primer fires. German Salazar (Rifleman’s Journal Editor) sought to find out, experimentally, whether this theory is correct. German explained: “During one of the many internet forum discussions of these cases, Al Matson (AlinWA) opined that the small flash hole might cause the primer flash to be propagated forward more vigorously. In his words, it should be like shooting a volume of water through a smaller nozzle, resulting in a flash that reaches further up the case. Now that kind of comment really sparked my curiosity, so I decided to see what I could see.”
More Primer Testing by Salazar
You can read more about this test and other primer experiments on RiflemansJournal.com.
Large and Small Flash Hole .308 Cases — But Both with Small Primer Pockets
To isolate the effect of flash hole diameter alone, German set up a test with the two types of .308 case that have a small primer pocket: Remington BR brass with a 0.080″ flash hole and Lapua Palma brass with a 0.062″ flash hole. NOTE: German reamed the Lapua brass to 0.062″ with a Sinclair uniforming tool, so it was slightly larger than the 0.059″ factory spec. The Remington brass has a .22 BR headstamp as this brass was actually meant to be re-formed into .22 BR or 6 BR before there was factory brass available for those cartridges.
German set up his primer testing fixture, and took photos in low light so you can see the propagation of the primer “blast” easily. He first tested the Remington 7 1/2 primer, a primer known for giving a large flame front. German notes: “I thought that if there was a ‘nozzle effect’ from the small flash hole, this primer would show it best. As you can see from the photos, there might be a little bit of a flash reduction effect with this primer and the small flash hole, the opposite of what we expected, but it doesn’t appear to be of a significant order of magnitude.”
Next German tested the Wolf .223 primer, an unplated version of the Small Rifle Magnum that so many shooters use. German notes: “This is a reduced flame-front (low flash) primer which has proven itself to be very accurate and will likely see a lot of use in the Lapua cases. With this primer, I couldn’t detect any difference in the flash produced by the small flash hole versus the large flash hole”.
Remington BR case, 0.080″ Flash Hole, Wolf .223 Primer.
Palma case, 0.062″ Flash Hole, Wolf 223 Primer.
German tells us: “I fired five or six of each primer to get these images, and while there is always a bit of variance, these are an accurate representation of each primer type and case type. You can draw your own conclusions from all this, I’m just presenting the data for you. I don’t necessarily draw any conclusions as to how any combination will shoot based on the pictures.”
Results of Testing
Overall, looking at German’s results, one might say that the smaller diameter of the small flash hole does not seem to have significantly changed the length or size of the primer flame front. There is no discernible increased “jet effect”.
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We first featured this story in 2010, but the results of this rimfire ammo test have been of such widespread interest that we try to bring the test to readers’ attention every year.
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.
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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To celebrate its 90th Anniversary, Lapua has developed a special new web site with many cool features including contests, product videos, and an interactive shooting game. You’ll find an interesting historical timeline recounting the history of Lapua starting in 1923. The timeline covers development of the factory, important product releases, competition successes, and other important milestones.
Submit your “Best Shot” and Win Prizes
On the site, Lapua invites readers to submit a short description of their “best shot” made with Lapua ammo or components: “Sometimes things just click. When did you have your moment of absolute precision? Share it with us…” Prizes will be awarded each month for the most impressive “best shot” stories submitted by readers. CLICK HERE for more info.
Play Interactive Biathlon Game
Site visitors can play an interactive shooting game featuring Biathon rifles and Lapua Polar Biathlon .22LR Ammo (other rifles and shooting disciplines will be added in the future). You’ll want to visit the Biathlon Game Page to see all the features, but we’ve embedded a sample here so you can see how it works. NOTE: you may have to use the scroll bars at the bottom and right sides. (This is because the game format is larger that our Bulletin “real estate”).
Watch Lapua Video
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If you have a rifle chambered in .260 Remington, you may be wondering if the Lapua .260 Brass is worth the money compared to domestic-made brass. Well, the answer is “yes” if you demand consistent weight and dimensional uniformity (including neckwall thickness).
Mike Harpster of Dead Center Sports took the time to weigh and measure Lapua .260 Rem brass. His test show this brass to be extremely uniform. Weight variance was less than one (1) grain in a 20-case sample. And case neckwall thickness was very consistent.
Report by Mike Harpster: Lapua .260 Rem Brass Test Results (with Comparisons)
I pulled twenty (20) pieces randomly from one Lapua box to do some measurements. I weighed them on my Mettler-Toledo digital lab scale and here are the individual weights of each case. Remarkably, the Lapua brass had less than one grain total weight variance among all 20 cases!
While checking the Lapua brass I remembered I had just received some Winchester brand .308 brass, so I thought it would be interesting to do a comparison between the two brands. I again pulled 20 cases at random from a bag of 50 and repeated the same measurements. The results are shown in the right half of the table below.
Weight Variance Lapua .260 Rem Brass vs. Winchester .308 Brass
LAPUA .260 Rem Brass
Winchester .308 Win Brass
Average: 172.20 grains
ES: 0.94 grains
SD: 0.259
Average: 158.49 grains
ES: 2.64 grains
SD: 0.678
Lapua Brass Further Inspection
With sample Lapua .260 Rem cases, I also measured the neck wall thickness in four places with calipers, not the most accurate method but I feel confident that the thickness did not vary more than .001″ over the 20 cases (.0145-.0155). The inside diameter of the neck measured .260 which would give .004 of neck tension out of the box. I visually checked the flash holes and I did not find any flakes of brass or burrs inside, the holes were round and centered.
Winchester Brass Further Inspection
The flash holes on the majority of the Winchester brass were not round or centered and they had large burrs inside. The neck wall thickness was pretty consistent, varying only .0015″ (.0125″ – .014″). As you can see in the photo (right) many of the Winchester cases were badly dented while the Lapua brass showed very few minor dents. The annealing on the necks of the Lapua brass was clearly evident while the Winchester showed no signs of being annealed. [Editor’s note: Winchester tumble-polishes its brass before shipping — so you would not notice annealing coloration if annealing had been done.]
I have never done these measurements on any other brass so I don’t know how they compare, but I am very impressed with the overall quality of the Lapua .260 brass. If they prove to hold up to the repeated firings I get from my Lapua 6BR brass I believe .260 shooters wil be very happy.
Mike Harpster — Dead Center Sports
105 Sunrise Drive
Spring Mills, PA 16875
phone: 814-571-4655 www.deadcentersports.com
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These days, quality .338 Lapua Magnum brass is hard to locate — and expensive when you can find it. Here’s a money-saving solution for you .338 LM shooters. Grafs.com has acquired a large quantity of once-fired .338 Lapua Mag cartridge brass. This brass bears the “NT” headstamp, but Graf’s says this brass is “manufactured by Lapua, to Lapua specs”. Cost is $159.99 for one hundred (100) cases. That price includes shipping charges, but there is one $6.95 handling fee per order. This .338 LM brass is IN-STOCK as of March 5, 2013.
How does that price compare to brand-new Lapua-made .338 LM brass? MidwayUSA sells a box of 100 Lapua-made .338 LM cases for $257.99, but MidwayUSA is “out of stock” with no back-orders being taken. Elsewhere we’ve seen Lapua-made .338 LM brass sell for up to $289.00 per hundred.
Product tip from EdLongrange. We welcome reader submissions.
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Can you imagine a shooting match that draws a couple hundred thousand spectators? Amazing right? Well that’s how many people turned out to watch the 2013 Int’l Biathlon Union (IBU) World Biathlon Championships (WBC) recently held in Nové Město in the Czech Republic.
At the 2013 WBC, event organizers constructed a stadium and filled it with 201,000 spectators to watch the best biathletes in the world. Among national teams at the WBC, Norway dominated, winning an incredible eight of the eleven competitions, including all three relays. Tora Berger and Emil Hegle Svendsen each won two individual events and contributed to the relay Golds. Tarjei Boe added Gold in the mass start. These eight Gold medals were a record for the IBU World Championships; no other nation has been so prolific or dominant.
On the other hand, biathletes from 12 different countries won medals — and that was a new record for medal distribution. In 2011 at Khanty Mansiysk, Russia, 11 nations took home a medal. This year 12 nations won at least one medal. Tim Burke from the USA earned a Silver Medal in the 20K event. This was the first medal for the red, white, and blue since Josh Thompson won the 20K Silver in 1987.
Lapua Polar Biathlon .22 LR Ammo Wins 97% of all 2013 WBC Medals
In the world of precision shooting, it’s unusual for one ammo-maker to completely dominate a major shooting event. But that’s exactly what happened at the 2013 World Biathlon Championships. An amazing 32 out of 33 total medals awarded in Nova Mesto went to biathletes shooting Lapua ammuntion, specifically Lapua .22 LR Polar Biathlon. That works out to 96.9% of ALL medals at this year’s IBU World Championships. Hats off to Lapua for producing the winningest biathlon ammunition ever made.
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Article based on story by Kyle Jillson for NRABlog
Kirsten Weiss was the 2012 NRA Women’s Smallbore Three Position (3-P) Champion. In this video, Kirsten condenses ten years of competitive shooting experience into an easy-to-understand segment about the fundamentals of aiming, head position, and proper cheek placement. Kirsten explains, “proper aiming is a relationship between the eye, the sights, and the target. Head position on the stock is the basic prerequisite to good aiming. And the cheek placement must be consistent every single time.” Kirsten also has a tip for scope fitting: “Once your cheek placement is comfortably achieved… make sure the scope comes to you — don’t move your head to the scope, [which requires] changing head/neck position. Adjust your scope to your eye in a comfortable way.”
So why are the fundamentals so important? Kirsten explains: “Even elite snipers and top-level competition shooters go back to basics to review and refresh their knowledge every once in a while. This reinforces knowledge, ingrains proper technique, and polishes out developmental flaws.”
Kirsten Weiss of Cornwall, PA was the 2012 NRA Women’s National Champion at the NRA Smallbore 3-P Championships held at Camp Perry, OH. She won the 2012 3-P smallbore championship in only her second trip to Camp Perry. Her first came nine years ago.
Back then she was still learning what it takes to be a top competitive shooter. Her skills still raw, she placed second in the Sharpshooter Category. Not good enough. She resolved to get better — and she did.
Weiss would go on to earn a spot on the Nebraska Cornhuskers rifle team. Her tenacity and techniques would garner recognition from USA Shooting and a sponsorship from Lapua Ammunition after a top eight finish at the Olympic Trials. She also has a been involved in hunting since age twelve. In fact, it was in the field that the foundation of her shooting skills began.
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At SHOT Show 2013, Lapua announced it was expanding its line-up of Scenar L projectiles to include two new 6.5mm bullets and three new .30-caliber Scenar Ls. We applaud this news. This Editor has tested 6mm Scenar L bullets in his own rifles, and they have proven to be some of the most consistent bullets we have ever measured. The Scenar Ls also shot great in 8-twist barrels from Brux, Krieger, and PacNor.
Two New 6.5mm Scenar Ls
Guys with .260 Rem, 6.5×47, 6.5 Creedmoor, and 6.5-284 rifles have been eagerly awaiting the new 6.5mm Scenar Ls. These will be offered in two weights: 120 grains and 136 grains.
Scenar Ls in .30 Caliber
Lapua will release three new .30-Caliber Scenar L bullets. Along with a new 155gr Palma bullet (GB 552), Lapua will offer a 175gr Scenar L (GB 550), plus a 220gr heavy-weight Scenar L (GB 551). In magnum and short magnum chamberings, the 220-grainers should prove very effective in Long Range comps.
What Makes the Scenar Ls So Good
While all Lapua Scenar bullets are made to exacting standards, Lapua “raised the bar” with its Scanar L series. Scenar L bullets feature closer weight tolerances, tighter jacket wall concentricity standards, and greater uniformity in every dimension. Building bullets this good isn’t easy — you have to get everything right — from the gilding metal cup, to the lead wire and jacket forming, core-jacket assembly, and finally boat-tail pressing and nose-tipping. To build L-series bullets to such high standards, Lapua had to adopt new manufacturing procedures, and install proprietary new machines and advanced instrumentation never seen before in bullet production. Lapua also took its already high quality control standards and kicked them up a notch.
New 6.5mm Scenar Ls — First Look
At SHOT Show, Lapua unveiled its much-awaited new 6.5mm (.264 caliber) Lapua Scenar L bullets. There are two (2) new 6.5mm Scenar Ls: a 120gr tangent ogive design and a 136gr multi-ogive design. These are both all-new bullets, though the new 120gr Scenar L bears a “family resemblance” to the current (and very accurate) 123gr standard Scenar. One look at the new 136-grainer, and you can see that this is NOT just a “tweak” of the popular 139gr standard Scenar. The new 136gr Scenar L has a streamlined secant-ogive shape that blends into a more conventional tangent ogive as the bullet approaches full diameter. This dual-ogive design enhances the bullet’s BC, making it more slippery. That should translate to less drop and less drift at long range.
These new 6.5-caliber Scenar Ls should hit the market very soon. Check with Grafs.com for availability. As soon as we can get our hands on Lapua’s new 120s and 136s we will test them in a 6.5×47 Lapua bench gun and see how they perform. The .30-Cal 175gr and 220gr Scenar-Ls should arrive by late spring according to Kevin Thomas of Lapua. Kevin is a member of our Forum and he can answer your questions about the entire line-up of Lapua projectiles, along with Lapua cartridge brass.
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To ensure the increasing demand of Lapua ammunition and Vihtavuori powder in the USA market is met with sufficient supply, Nammo Lapua Oy has made changes to its distribution network. Effective Jan 1, 2013, Lapua centerfire ammunition and components, as well as Lapua and SK brand rimfire ammunition, will be distributed by Graf & Sons of Mexico, Missouri; Sport Shooting International (SSI) of Anaheim, California; and Crow Shooting Supplies of Brooklyn, Iowa.
VihtaVuori smokeless powder products will continue to be imported and distributed by the Hodgdon Powder Company of Shawnee Mission, Kansas.
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Even with high-quality brass from Lapua, Norma, and RWS, occasionally you may find one or two cases per box which have a small flake or obstruction in the flash-hole. This will appear like a thin crescent on one side of the flash hole (see photo). You should inspect ALL new brass before loading to identify any pieces with a partially-obstructed flash hole. It’s a good idea to remove any flake or thin crescent left as an artifact of the flash-hole forming process. Because the flash-hole itself is normally centered and of the correct diameter, it is not necessary to ream the flash-hole to a larger diameter. All you really need to do is remove the small obstruction(s). This can be done quickly with inexpensive tools.
Use a Small Pin Vise to Remove Flash-Hole Obstructions
Folks have asked if there is a tool that can remove obstructions from a Lapua small, BR-sized flash hole without opening the hole size. The Lapua PPC/BR flash hole is spec’d at 1.5mm, which works out to 0.059055″. Most of the PPC/BR flash-hole uniforming tools on the market use a 1/16″ bit which is nominally 0.0625″, but these often run oversize — up to 0.066″.
If you want to just clear out any obstructions in the flash hole, without increasing the flash hole diameter, you can use an inexpensive “pin vise” with an appropriate drill bit. For $1.00, eHobbyTools.com sells a 1.5mm drill bit, item 79186, that matches the Lapua flash hole exactly. Other vendors offer a #53 pin vise drill bit that measures .0595″ or .060″ (depending or source). An 0.0595″ bit is close enough. You can find pin vises and these small-diameter drill bits at hobby stores.
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 $45.99. 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.
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Put the same load in a variety of barrels (with the same length and chamberings) and you’ll see a wide variance in muzzle velocity. In fact, it’s not unusual to see up to 100 fps difference from one barrel to the next. We demonstrated this with a comparison test of Lapua factory ammo.
Chron Testing Lapua Factory Ammo
At our Southern California test range, we chronographed Lapua 105gr 6mmBR factory ammo in three different 8-twist barrels of similar length. The results were fascinating. Lapua specs this ammo at 2790 fps, based on Lapua’s testing with its own 26″ test barrel. We observed a speed variance of 67 fps based on tests with three aftermarket barrels.
Brand ‘S’ and Brand ‘PN’ were pre-fit barrels shot on Savage actions. Brand ‘K’ was fitted to a custom action. All test barrels were throated for the 100-108 grain bullets, though there may have been some slight variances in barrel freebore. With a COAL of 2.330″, the rounds were “jumping” to the rifling in all barrels. Among the four barrels, Brand ‘PN’ was the fastest at 2824 fps average — 67 fps faster than the slowest barrel. Roughly 10 fps can be attributed to the slightly longer length (27″ vs. 26″), but otherwise this particular barrel was simply faster than the rest. (Click Here for results of 6mmBR Barrel Length Velocity Test).
Results Are Barrel-Specific, Not Brand-Specific
These tests demonstrate that the exact same load can perform very differently in different barrels. We aren’t publishing the barrel-makers’ names, because it would be wrong to assume that ‘Brand X’ is always going to be faster than ‘Brand Y’ based on test results from a single barrel. In fact, velocities can vary up to 100 fps with two identical-spec barrels from the SAME manufacturer. That’s right, you can have two 8-twist, 26″ barrels, with the same land-groove configuration and contour, from the same manufacturer, and one can be much faster than another.
Don’t Demand More Than Your Barrel Can Deliver
We often hear guys lament, “I don’t get it… how can you guys get 2900 fps with your 6BRs and I can only get 2840?” The answer may simply be that the barrel is slower than average. If you have a slow barrel, you can try using more powder, but there is a good chance it may never run as fast as an inherently fast barrel. You shouldn’t knock yourself out (and over-stress your brass) trying to duplicate the velocities someone else may be getting. You need to work within the limits of your barrel.
Factory Ammo Provides a Benchmark If you have a .223 Rem, 6BR, .243 Win, 6.5×47 Lapua, 6.5×55, .308 Win, 30-06, or 300 WM Rifle, we recommend you buy a box of Lapua factory-loaded ammo. This stuff will shoot great (typically around half-MOA), and it can give you a baseline to determine how your barrel stacks up speedwise. When you complete a new 6BR rifle, it’s wise to get a box of the factory ammo and chronograph it. That will immediately give you a good idea whether you have a slow, average, or fast barrel. Then you can set your velocity goals accordingly. For example, if the factory 6BR ammo runs about 2780-2790 fps in your gun, it has an average barrel. If it runs 2820+ in a 26″ barrel (or 2835 fps in a 28″), you’ve got a fast tube.
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Competition at 100m and 600m
In 2010, the staff of 
If you have a rifle chambered in .260 Remington, you may be wondering if the Lapua .260 Brass is worth the money compared to domestic-made brass. Well, the answer is “yes” if you demand consistent weight and dimensional uniformity (including neckwall thickness).
Average: 172.20 grains
Average: 158.49 grains
Lapua Brass Further Inspection
At the 2013 WBC, event organizers constructed a stadium and filled it with 201,000 spectators to watch the best biathletes in the world. Among national teams at the WBC, Norway dominated, winning an incredible eight of the eleven competitions, including all three relays. Tora Berger and Emil Hegle Svendsen each won two individual events and contributed to the relay Golds. Tarjei Boe added Gold in the mass start. These eight Gold medals were a record for the IBU World Championships; no other nation has been so prolific or dominant.
Kirsten Weiss of Cornwall, PA was the 2012 NRA Women’s National Champion at the NRA Smallbore 3-P Championships held at Camp Perry, OH. She won the 2012 3-P smallbore championship in only her second trip to Camp Perry. Her first came nine years ago.
At SHOT Show 2013, 
New 6.5mm Scenar Ls — First Look
To ensure the increasing demand of Lapua ammunition and Vihtavuori powder in the USA market is met with sufficient supply, Nammo Lapua Oy has made changes to its distribution network. Effective Jan 1, 2013, Lapua centerfire ammunition and components, as well as Lapua and SK brand rimfire ammunition, will be distributed by 
If you have a .223 Rem, 6BR, .243 Win, 6.5×47 Lapua, 6.5×55, .308 Win, 30-06, or 300 WM Rifle, we recommend you buy a box of 
