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November 9th, 2024

Saturday Movies: Ammo Production Factories in USA and Europe

Lapua norma sellier bellot ammunition ammo factory germany finland sweden usa

While many AccurateShooter.com readers load their own competition centerfire rifle ammunition, we all still need factory ammo for our rimfire rifles in .17 and .22 calibers. And most of the 65+ million American handgun owners rely on factory-made ammunition for their pistols and revolvers.

Today’s video collection showcases state-of-the-art ammunition factories in Europe and the United States. You can see the extremely accurate Lapua .22 LR ammo being produced, as well as excellent centerfire ammunition being made by Norma, Remington, Sellier & Bellot and other makers.

From the creation of lead bullet cores to the final packing of ammunition, you can see it all in these videos. Watch primers being made, brass being annealed, bullets being jacketed, tips being inserted, and every phase of production. Weighing and testing procedures are also revealed.

Modern Ammo Production in Multiple Facilities

This 11.5-minute video shows highly automated bullet and ammunition production in multiple facilities in Europe and the USA. You can see bullets produced from start to finish beginning with lead smelting. Then watch pistol and rifle cartridges being made on modern, computer-controlled assembly lines. Watch from start to finish. Here are some notable highlights:

00:10 — Lead Melting Pots and Billet Caster
01:20 — Lead made into strings and then formed into bullets
01:50 — Brass alloy sheets fed into machine and then punched (2:10-2:35).
03:35 — Lead pistol cores being produced
04:15 — Pistol ammo being packaged
06:15 — Ammo loaded into belts
07:15 — Completed primers being shuttled then loaded into brass (Second factory)
07:20 — Bullets being seating into rifle ammunition
07:32 — Cartridge case-neck treatment
07:42 — Robot arm loads finishes cartridges into boxes
08:04 — Cups being pressed (Third Factory S&B)
08:45 — Cartridge case draw
09:06 — Priming pistol cases
09:20 — Bullet production and weight control (10:02)
10:08 — Cartridge assembly and cartridge sealing (10:38)
11:00 — Pistol ammo packaging

Lapua Rimfire Ammunition Production in Germany

This video shows Lapua rimfire ammo production in Schönebeck, Germany. The video shows quantities of the excellent X-ACT .22 LR ammunition being produced and packaged. Starting at the one-minute mark, you can see the ammo being inspected with advanced scanning machines. Then at 1:16 time-mark you can see the ammo accuracy-tested in a tunnel, with results displayed on a computer screen (1:27).

Norma Ammunition Production in Sweden

In this video, the RecoilTV team lead by EIC Iain Harrison ventures to Sweden to visit the Norma ammunition production plant in Huvudentré, Sweden. Demand for Norma ammo has risen dramatically. A Norma marketing manager notes that production has doubled in the last three years.

This second Norma ammunition video shows close-ups of the production process and the machinery used for centerfire ammo. This was filmed at the Norma factory in Åmotfors, Sweden, which has operated continuously for over 120 years. Among the many interesting highlight is a sequence showing how polymer bullet tips are inserted. See 6:50 time-mark.

Lapua norma sellier bellot ammunition ammo factory germany finland sweden usa

Sellier & Bellot Ammunition Factory in Czech Republic

In this video, Larry Vickers of Vickers Tactical tours a Sellier & Bellot ammunition plant in the Czech Republic. This video shows details of primer production as well as bullet-making, brass-making, and production-line cartridge manufacturing.

Remington Ammunition Plant Re-Opened by Vista Outdoors

This video shows ammo production at the re-opened Remington ammunition plant in Lonoke, Arkansas. “This is one of the largest ammunition manufacturing plants in the world” said Mark Keefe, NRA Publications editorial director. “It was set up in 1969 by DuPont, who owned Remington at the time. They do it all here. Cases, bullets, centerfire rifle, centerfire pistol, rimfire and shotshell.” It’s great to see this plant back in production after Remington Ammunition filed for bankruptcy in 2020 and the assets of the Remington conglomerate were auctioned off. Ultimately, Vista Outdoor, owner of Federal, CCI and Speer, purchased the assets of Remington Ammunition and got the Lonoke plant running again, better than ever.
This article is Copyright 2024 AccurateShooter.com. Republication on any other site gives rise to statutory penalties and compensatory damages.

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September 25th, 2024

Origins of the Popular 6.5 Creedmoor Cartridge

Norma hunting africa elk deer eland 6.5 Creedmoor cartridge
6.5 Creedmoor (right) shown with .308 Win (left) and .243 Win (center) for comparison.

Though most popular for competition applications (PRS and XTC), the 6.5 Creedmoor is also a capable hunting cartridge. A few seasons back Norma spotlighted the 6.5 Creedmoor cartridge and outlined the game-harvesting capabilities of Norma 6.5 Creedmoor factory ammunition. Here are highlights of that article, which may interest hunters this fall.

Origins of the 6.5 Creedmoor
Dave Emary, senior engineer at Hornady, asked fellow competitive shooters about their “wish list” for a mid-sized round with long-range potential. It needed to offer efficiency, good ballistics, fine accuracy, and reliable feeding from a magazine. To achieve these goals, Emary necked the .30 T/C to .264 caliber (6.5 mm). Dennis DeMille, then working at Creedmoor Sports, was also involved in the design (and naming) of the new cartridge type.

The shoulder on this 6.5 Creedmoor case is well to the rear, so long bullets with high ballistic coefficients can be used in short actions. The efficient Creedmoor case and its modest powder charge deliver hard hits on big game while keeping recoil modest. The case runs well in magazines sized for the .308 Winchester, and because it is efficient, the 6.5 Creedmoor delivers velocities very close to the .260 Remington (which is basically a 6.5-308 Win) with less powder. The 6.5 Creedmoor cartridge has shown excellent accuracy in PRS competition, though the 6mm Creedmoor has proven more competitive, given its reduced recoil. Overall the 6.5 Creedmoor has been a huge commercial success — the 6.5 CM is now one of the most-commonly chambered cartridges in new factory rifles.

Norma hunting africa elk deer eland 6.5 Creedmoor cartridge

Hunting with the 6.5 Creedmoor

by Wayne van Zwoll
I learned about the 6.5 Creedmoor by way of a rifle from Todd Seyfert at Magnum Research. The Remington 700 action wears a carbon-fiber barrel with a Krieger stainless core. GreyBull Precision added a stock and a modified 4.5-14X Leupold scope. Its 1/3-minute elevation dial is calibrated specifically for 130-grain boat-tail spitzers at Creedmoor velocities. “Spin the elevation dial to the distance in yards, and aim dead-on.” said GreyBull’s Don Ward. Prone with a sling, I was soon banging steel at 500 yards.

By the charts, the 6.5 Creedmoor is a superb cartridge for deer-size game. But I caught only a late elk season with this new rifle. The 6.5×55 and .260 had taken elk for me; surely the Creedmoor would as well. Alas, the close shot I’d wanted, to ensure precise bullet placement, didn’t come. When on the final evening Don and I spied a bull far off, there was no approach. “Your call,” he shrugged. “The air is dead-still.” I snugged the sling, prone, and dialed to the yardage. Ribs spot-lit by a sinking sun, the bull paused. Craaack! The animal spun, sprinted and fell. That shot was twice as long as any I’d ever attempted at elk.

Whitetail hunting with a Ruger 77, then a trip to sub-Saharan Africa with a T/C Icon, kept the 6.5 Creedmoor in my ammo pouch. The T/C dropped a Vaal Rhebok at 250 yards, in stiff wind. Shorter pokes on a variety of game produced consistently quick kills. I found the Creedmoor’s limit with an eland.

Norma hunting africa elk deer eland 6.5 Creedmoor cartridge
A high ballistic coefficient helped a Creedmoor bullet slice stiff wind 250 yards to this Vaal Rhebok.

Since then, I’ve seen several animals brought to bag by the 6.5 Creedmoor. And I’ve used it in a variety of rifles on paper and steel targets to 1,200 yards. It has become one of my favorite cartridges for deer-size game. Its mild report and recoil make it easy to shoot accurately. It seems an inherently accurate cartridge too. I’ve punched half-minute groups from production-class rifles. The proliferation of hunting loads for the 6.5 Creedmoor includes none better than Norma’s 130-grain Scirocco. This sleek, polymer-nose bullet, with its 15° boat-tail and a G1 BC over .550, flies very flat. In expansion and penetration tests, it opens reliably down to 1,750 fps, and drives straight and deep. A bonded bullet, it stays in one piece after high-speed impact, routinely retaining more than 80% of its original weight.

Story Tip from EdLongrange. We welcome reader submissions.
Permalink Bullets, Brass, Ammo, Hunting/Varminting, Tech Tip No Comments »
July 28th, 2024

Sunday GunDay: Mad Minute Speed Shooting in Norway

Mad Minute Norway Haga 6.5x55 speed shooting marksmanship British Army

Think you can shoot fast with a bolt gun? Bet you can’t beat these Norwegian speed-demons. In 2019, Inge Hvitås set a Mad Minute World Record, putting 39 rounds inside a 16″ circle at 200 meters, all in a single minute. At the same match, another Norwegian ace fired 48 rounds in a minute, with 38 in the bullseye. Now that’s spectacular speed and accuracy. We first ran this story in 2019 when the record was set. Wikipedia reports this is still the current record. So we believe no one has ever put more rounds on a 16″ target at 200m (with a bolt-action rifle) than Inge Hvitås. We include videos showing Inge’s amazing sequence.

Watch Inge Hvitås Set New Mad Minute World Record:


NOTE: This video, hosted by Facebook, may be slow to load. But be patient — it’s amazing to watch! CLICK HERE to run this story all by itself, speeding up the video load.

Mad Minute Norway Haga 6.5x55 speed shooting marksmanship British Army

Mad Minute World Record — 39 Hits in One Minute (60 seconds)
At the Haga shooting range in Norway, spectators witnessed spectacular speed shooting in 2019. Norwegian shooter Inge Hvitås set a Mad Minute Challenge World Record with 39 hits in ONE MINUTE at 200m. The target was a 40cm (15.75″) bullseye placed at 200m (218 yards). Fellow Norwegian Jesper Nilsstua also shot brilliantly, sending 48 rounds down-range in one minute. Jesper had 38 hits, missing the record by just one. Both shooters were using iron-sighted Sauer 200 STR target rifles, which are normally chambered for the 6.5×55 cartridge. For this event, magazines are limited to 5 rounds and shooters may use slings but no bipods or other support.

Amazing Bolt-Gun Cycling Speed — 48 Rounds in One Minute

Another Norwegian ace, Jesper Nilsstua, missed the Mad Minute Challenge record (by one hit), but boy was he fast. Dennis Santiago (who has done his own Mad Minute drill), was dazzled: “This dude didn’t get the new world’s record of 39 hits in 60 seconds. He ‘only’ got 38 hits after getting off an amazing 48 shots in 60 seconds. Watch the smoothness of his shooting. It’s amazing.”


NOTE to Readers: This video is hosted by Facebook. It may be slow to load. But it is worth watching.

Mad Minute Norway Haga 6.5x55 speed shooting marksmanship British Army

Mad Minute Norway Haga 6.5x55 speed shooting marksmanship British Army electronic targets
For the Mad Minute Challenge in Norway, a standard 200m DFS target was used, with 1 point per hit within the black area which is 40cm (15.75″, or 6.9 MOA) in diameter.

Norwegian Mad Minute Challenge — Event Rules
The organizers of the event posted: “The Mad Minute Challenge [is] a modern edition of a old military drill. This is a place for sport shooters to … share experiences on the subject of speed shooting with bolt-action rifles. The Mad Minute Challenge is all about the sport! To make a attempt for the record everyone must follow these five simple rules:”

Mad Minute Norway Haga 6.5x55 speed shooting marksmanship British Army rules

Mad Minute Norway Haga 6.5x55 speed shooting marksmanship British Army

Rapid-Fire Shooting Comparison Video
To illustrate the remarkable speed of Norwegian champion Inge Hvitås, this video shows Inge (top of frame) compared with other skilled competitors shooting the same 1-minute course of fire in Lesja, Norway.

About the Original MAD MINUTE
“Mad Minute” was a pre-World War I term used by British Army riflemen during training at the Hythe School of Musketry to describe scoring a minimum of 15 hits on a target at 300 yards within one minute using a bolt-action rifle (usually a Lee-Enfield or Lee-Metford rifle). It was not uncommon during the First World War for riflemen to greatly exceed this score. The record, set in 1914 by Sergeant Instructor Alfred Snoxall, was 38 hits.

Mad Minute Lee Enfield

Listed as “Practice number 22, Rapid Fire” of The Musketry Regulations, Part I, 1909, this drill required at least 15 shots on the Second Class target at 300 yards. The exercise was just one of several annual tests to classify a soldier as a sharpshooter, first or second class shooter depending on the points achieved.

Made Minute Second Class targetResearch indicates the Second Class target was a 48″ x 48″ square with 24″ inner circle and 36″ outer circle. The sight mark was a central 12″ x 12″ shape representing a soldier. ALL hits scored points (3 for center circle, 2 for outer circle, 1 for outer square). NOTE: Though some sources say the Mad Minute drill used a 12″-diameter round target, this appears to be a mistake from Ian Hogg’s book “The Encyclopedia of Weaponry”. No other source mentions a 12″ circle, which would be a mere 3.82 MOA. In reality the true drill target was a 48″ x 48″ square, roughly 15 times larger. (From No.WikiPedia.)

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October 21st, 2023

Humidity Changes Can Alter Powder Burn Rates and Performance

Tech Tip Norma Powder gunpowder moisture temperature humidity

The leaves are falling, and that means the rainy season will soon begin in many areas of the country. With rain comes increased moisture in the air, i.e. increased humidity. And that, in turn, can affect how your powders perform by altering their burn rates.

Most shooters realize that significant changes in temperature will alter how powders perform. That’s why you want to keep your loaded ammo out of the hot sun, and keep rounds out of a hot chamber until you’re ready to fire. But there are other factors to be considered — HUMIDITY for one. This article explains why and how humidity can affect powder burn rates and performance.

We’ve all heard the old adage: “Keep your powder dry”. Well, tests by Norma have demonstrated that even normal environmental differences in humidity can affect the way powders burn, at least over the long term. In the Norma Reloading Manual, Sven-Eric Johansson, head of ballistics at Nexplo/Bofors, presents a very important discussion of water vapor absorption by powder. Johansson demonstrates that the same powder will burn at different rates depending on water content.

Powders Leave the Factory with 0.5 to 1.0% Water Content
Johansson explains that, as manufactured, most powders contain 0.5 to 1% of water by weight. (The relative humidity is “equilibrated” at 40-50% during the manufacturing process to maintain this 0.5-1% moisture content). Importantly, Johansson notes that powder exposed to moist air for a long time will absorb water, causing it to burn at a slower rate. On the other hand, long-term storage in a very dry environment reduces powder moisture content, so the powder burns at a faster rate. In addition, Johansson found that single-base powders are MORE sensitive to relative humidity than are double-base powders (which contain nitroglycerine).

Tests Show Burn Rates Vary with Water Content
In his review of the Norma Manual, Fred Barker notes: “Johansson gives twelve (eye-opening) plots of the velocities and pressures obtained on firing several popular cartridges with dehydrated, normal and hydrated Norma powders (from #200 to MRP). He also gives results on loaded .30-06 and .38 Special cartridges stored for 663 to 683 days in relative humidities of 20% and 86%. So Johansson’s advice is to keep powders tightly capped in their factory containers, and to minimize their exposure to dry or humid air.”

Confirming Johansson’s findings that storage conditions can alter burn rates, Barker observes: “I have about 10 pounds of WWII 4831 powder that has been stored in dry (about 20% RH) Colorado air for more than 60 years. It now burns about like IMR 3031.”

What does this teach us? First, all powders start out with a small, but chemically important, amount of water content. Second, a powder’s water content can change over time, depending on where and how the powder is stored. Third, the water content of your powder DOES make a difference in how it burns, particularly for single-base powders. For example, over a period of time, a powder used (and then recapped) in the hot, dry Southwest will probably behave differently than the same powder used in the humid Southeast.

Reloaders are advised to keep these things in mind. If you want to maintain your powders’ “as manufactured” burn rate, it is wise to head Johannson’s recommendation to keep your powders tightly capped when you’re not actually dispensing charges and avoid exposing your powder to very dry or very humid conditions. The Norma Reloading Manual is available from MidwayUSA for $24.99.

Real-World Example — “Dry” H4831sc Runs Hotter

Robert Whitley agrees that the burn rate of the powder varies with the humidity it absorbs. Robert writes: “I had an 8-lb. jug of H4831SC I kept in my detached garage (it can be humid there). 43.5-44.0 gr of this was superbly accurate with the 115 Bergers out of my 6mm Super X. I got tired of bringing it in and out of the garage to my house for reloading so I brought and kept the jug in my reloading room (a dehumidified room in my house) and after a few weeks I loaded up 43.5 gr, went to a match and it shot awful. I could not figure out what was going on until I put that load back over the chronograph and figured out it was going a good bit faster than before and the load was out of the “sweet spot” (42.5 – 43.0 gr was the max I could load and keep it accurate when it was stored in less humid air). I put the jug back in the garage for a few weeks and I now am back to loading 43.5 – 44.0 gr and it shoots great again. I have seen this with other powders too.”

If you have two jugs of the same powder, one kept in a room in your house and one somewhere else where it is drier or more humid, don’t expect the two jugs of the same lot of powder to chrono the same with the same charge weights unless and until they are both stored long enough in the same place to equalize again.

Permalink - Articles, Bullets, Brass, Ammo, Reloading, Tech Tip 2 Comments »
September 18th, 2023

GREAT Video on Making Brass and Precision Ammo — Watch Now

Norma factory ammo production video

Guys — honestly, if you do anything today on this site, watch this video. You won’t be disappointed. Guaranteed. This is a very informative (and surprisingly entertaining) video. Every serious hand-loader should watch this video to see how cartridge cases and loaded ammo are made. Your Editor has watched the video multiple times and I still find it fascinating. The camera work and editing are excellent — there are many close-ups revealing key processes such as annealing and head-stamping.

VERY Informative Video Show Cartridge Brass and Ammunition Production:

Norma has released a fascinating video showing how bullet, brass, and ammunition are produced at the Norma Precision AB factory which first opened in 1902. You can see how cartridges are made starting with brass disks, then formed into shape through a series of processes, including “hitting [the cup] with a 30-ton hammer”. After annealing (shown at 0:08″), samples from every batch of brass are analyzed (at multiple points along the case length) to check metal grain structure and hardness. Before packing, each case is visually inspected by a human being (3:27″ time-mark).

The video also shows how bullets are made from jackets and lead cores. Finally, you can watch the loading machines that fill cases with powder, seat the bullets, and then transport the loaded rounds to the packing system. In his enthusiasm, the reporter/narrator does sometimes confuse the term “bullets” and “rounds” (5:00″), but you can figure out what he means. We definitely recommend watching this video. It’s fascinating to see 110-year-old sorting devices on the assembly line right next to state-of-the art, digitally-controlled production machinery.

Video tip by EdLongrange. We welcome reader submissions.
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March 4th, 2023

Saturday Movies: Inside Look at Modern Ammunition Factories

Lapua norma sellier bellot ammunition ammo factory germany finland sweden usa

While many AccurateShooter.com readers load their own competition centerfire rifle ammunition, we all still need factory ammo for our rimfire rifles in .17 and .22 calibers. And most of the 60+ million American handgun owners rely on factory-made ammunition for their pistols and revolvers.

Today’s video collection showcases state-of-the-art ammunition factories in Europe and the United States. You can see the extremely accurate Lapua .22 LR ammo being produced, as well as excellent centerfire ammunition being made by Norma, Remington, Sellier & Bellot and other makers.

From the creation of lead bullet cores to the final packing of ammunition, you can see it all in these videos. Watch primers being made, brass being annealed, bullets being jacketed, tips being inserted, and every phase of production. Weighing and testing procedures are also revealed.

Modern Ammo Production in Multiple Facilities

This 11.5-minute video shows highly automated bullet and ammunition production in multiple facilities in Europe and the USA. You can see bullets produced from start to finish beginning with lead smelting. Then watch pistol and rifle cartridges being made on modern, computer-controlled assembly lines. Watch from start to finish. Here are some notable highlights:

00:10 — Lead Melting Pots and Billet Caster
01:20 — Lead made into strings and then formed into bullets
01:50 — Brass alloy sheets fed into machine and then punched (2:10-2:35).
03:35 — Lead pistol cores being produced
04:15 — Pistol ammo being packaged
06:15 — Ammo loaded into belts
07:15 — Completed primers being shuttled then loaded into brass (Second factory)
07:20 — Bullets being seating into rifle ammunition
07:32 — Cartridge case-neck treatment
07:42 — Robot arm loads finishes cartridges into boxes
08:04 — Cups being pressed (Third Factory S&B)
08:45 — Cartridge case draw
09:06 — Priming pistol cases
09:20 — Bullet production and weight control (10:02)
10:08 — Cartridge assembly and cartridge sealing (10:38)
11:00 — Pistol ammo packaging

Lapua Rimfire Ammunition Production in Germany

This video shows Lapua rimfire ammo production in Schönebeck, Germany. The video shows quantities of the excellent X-ACT .22 LR ammunition being produced and packaged. Starting at the one-minute mark, you can see the ammo being inspected with advanced scanning machines. Then at 1:16 time-mark you can see the ammo accuracy-tested in a tunnel, with results displayed on a computer screen (1:27).

Norma Ammunition Production in Sweden

In this video, the RecoilTV team lead by EIC Iain Harrison ventures to Sweden to visit the Norma ammunition production plant in Huvudentré, Sweden. Demand for Norma ammo has risen dramatically. A Norma marketing manager notes that production has doubled in the last three years.

This second Norma ammunition video shows close-ups of the production process and the machinery used for centerfire ammo. This was filmed at the Norma factory in Åmotfors, Sweden, which has operated continuously for over 120 years. Among the many interesting highlight is a sequence showing how polymer bullet tips are inserted. See 6:50 time-mark.

Lapua norma sellier bellot ammunition ammo factory germany finland sweden usa

Sellier & Bellot Ammunition Factory in Czech Republic

In this video, Larry Vickers of Vickers Tactical tours a Sellier & Bellot ammunition plant in the Czech Republic. This video shows details of primer production as well as bullet-making, brass-making, and production-line cartridge manufacturing.

Remington Ammunition Plant Re-Opened by Vista Outdoors

This video shows ammo production at the re-opened Remington ammunition plant in Lonoke, Arkansas. “This is one of the largest ammunition manufacturing plants in the world” said Mark Keefe, NRA Publications editorial director. “It was set up in 1969 by DuPont, who owned Remington at the time. They do it all here. Cases, bullets, centerfire rifle, centerfire pistol, rimfire and shotshell.” It’s great to see this plant back in production after Remington Ammunition filed for bankruptcy in 2020 and the assets of the Remington conglomerate were auctioned off. Ultimately, Vista Outdoor, owner of Federal, CCI and Speer, purchased the assets of Remington Ammunition and got the Lonoke plant running again, better than ever.
This article is Copyright 2023 AccurateShooter.com. Republication on any other site gives rise to statutory penalties and compensatory damages.

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October 2nd, 2022

Sunday GunDay: Matt’s Screamin’ Yellow .243 Ackley Improved

.243 Win Ackley Improved ST1000 stock varmint rifle 1000-yard benchrest

.243 Ackley Improved for Long-Range Varminting and Benchrest Competition
Whenever Matt Bianchini brings his bright yellow .243 Ackley to the firing line, heads turn. This is one truly handsome rig–as good-looking as it is accurate. Built to smoke varmints at long-range as well as compete in 1000-yard benchrest matches, this rifle is proof that competition improves the breed. Fitted with a Farley action, Jewell trigger, Leupold LRT scope, and Lilja or Krieger barrel, the Yellow Ackley is a “no compromise” match rifle that can run with the big dogs in 1K Benchrest competition. And with the Ackley’s ability to toss 106gr Clinch Rivers at 3350 fps, this is one flat-shooting, hard-hitting varmint rifle.

.243 Win Ackley Improved ST1000 stock varmint rifle 1000-yard benchrest

Ultra-Fast, Ultra-Smooth Farley Action…and One Wicked Paint Job
The heart of Matt’s rifle is a Farley action. Farleys have found favor with Benchrest competitors, because the bolt can be worked so fast. And the Farley is as smooth as it is speedy. The difference is quite noticeable if you compare it to a blue-printed Rem 700, or even a recent Stolle Panda. Farleys were true customs, built one at a time by the Farley family in Oklahoma. Unlike a BAT action which is machined from billet steel, a Farley starts with a stainless investment casting, much like Ruger pistol frames. It uses a cone bolt for smooth, yet solid lock-up.

One of the unique features of the Farley is the ejector–it can be switched on or off, depending on the shooter’s preference. So, if you’re load testing some hot rounds, you can turn the ejector off. In a match you can turn the ejector “on” to function normally. Matt is now a confirmed Farley fanatic. He tells us: “I’ve got quite a few other very nice actions, including Nesikas. But none of them are as slick as that Farley. When you work the bolt it feels like it’s on ball-bearings.”

Matt’s Screamin’ Yellow Ackley–The Need for Speed

.243 Win Ackley Improved ST1000 stock varmint rifle 1000-yard benchrest

.243 Ackley Improved Speed Demon
In a long-range varmint rifle, speed kills. Ultra-high velocities will deliver flatter trajectories and more explosive hits on critters. That’s where the .243 Ackley Improved really shines.

.243 Win Ackley Improved ST1000 stock varmint rifle 1000-yard benchrest

Matt has explored the upper limits of .243 Ackley Improved (AI) performance with his yellow long-range rig, fitted with a 29″ Lilja 3-groove, 1:8″-twist barrel. Using a stout load of Alliant Reloder 25, Matt’s “Screamin’ Yellow Ackley” has topped 3340 fps with Clinch River 106s. That’s serious speed for heavy 6mm bullets. This shows a well-built .243 AI leaves Dashers and 6XCs in the dust when it comes to pure velocity.

.243 Win Ackley Improved ST1000 stock varmint rifle 1000-yard benchrestUltimate Evolution of the .243 Winchester
Matt’s show-stopping rifle is a .243 Ackley Improved (40-degree shoulder, .271″ neck), chambered with a Manson reamer. On top of the stainless Farley “S” action, in Farley 30mm rings, sits a Leupold LRT (1/16 MOA dot) boosted to 18X-40X by Premier Reticles. Matt has SIX barrels for the gun, three Lilja 3-grooves, a couple Kriegers, and a Shilen.

Matt’s gun currently sports an 8-twist 29″ Lilja 3-groove HV taper that Matt says cleans up like a dream. The stock is a Shehane ST-1000 Tracker made in fiberglass by McMillan, with a BAT trigger guard and Shehane polished billet aluminum buttplate. Prior to final finishing, Matt worked over the flats and some of the angles. That’s why the facets are so well-defined on this rifle compared to some ‘glass Trackers you may have seen. The gun was chambered by Dave Bruno of Cheswick, PA.

Matt bedded the stock and applied the stunning Sikken “Viper” yellow paint job himself. That flawless, smooth-as-glass Screamin’ Yellow finish is no ordinary paint-job, but then Matt Bianchini is no ordinary do-it-yourself painter. His family runs an automotive body-shop, so he had access to premium paints and a quarter-million-dollar spray booth with all the latest technology. Still, Matt spent many hours on this stock to get everything right, trying a couple colors before he settled on a Sikken automotive “Viper Race Yellow” formulated for the Dodge Viper sports car. After careful prep work, Matt sprayed two coats of Viper Yellow, and then added three coats of high-grade automotive clear, which was then baked-on in a heat chamber. Matt also painted the Sinclair front rest to match the stock, and even polished the surfaces of the Hoehn windage top. A lot of effort, Matt told us, was required to achieve the results you see here.

3300 fps for 1000 Yards
Though Matt’s Ackley has harvested its share of varmints, the gun was built with 1000-yard benchrest competition in mind. At left is the firing line at Thunder Valley, Ohio. Yep those targets (upper right) are 1000 yards away. Now you know why Matt has a 40-power scope.

.243 Win Ackley Improved AI varmint rifle

.243 Win Ackley Improved AI varmint rifle

The Yellow Ackley weighs just under 17 pounds to meet IBS and NBRSA “Light Gun” weight limits. While Matt says his bullets don’t “go to sleep” for a couple hundred yards, this gun can still shoot 1/4″ groups at 100 yards and hold that accuracy much, much farther. Matt reports, “my best-ever group was five shots in .397″ at 400 yards. Yep, I got lucky with the conditions, but this is a very accurate rifle.”

.243 Ackley Improved–More Velocity, Less Case Stretch

by Bob Blaine, Sinclair International

Parker Ackley reluctantly developed the .243 Ackley Improved (“AI”). Ackley finally gave in to his customers’ requests to develop the .243 AI. He had always felt that the .243 Winchester was already an improved configuration, but he did say that the best thing to be gained by improving the .243 Winchester was to substantially reduce the case-stretching problems. The .243 Winchester parent case has always stretched brass, almost as bad as the Swift. Even though you get more velocity with the improved .243, I’ve also found that the improved version gives a bit more throat life than the parent case does.

The .243 AI delivers more velocity by virtue of enhanced case capacity–roughly five grains more H20 capacity than a standard .243 Winchester. The .243 AI has a water capacity of approximately 57 to 58 grains, compared to 52-53 grains for the standard .243 Winchester.

Loading for Long-Range
For long-range shooting, Matt loads 106gr Clinch Rivers with 47.5gr of Alliant Reloder 25 for his Krieger barrels, a little more powder with the Lilja 3-grooves. The Lilja load runs 3342 fps, with a 3.228″ OAL. Cases are neck-turned Lapua .243 Winchester. He uses Wilson inline seater and Wilson eck-sizer dies (.267″ bushing), and a custom, reamer-cut FL sizing die.

Not Just for BR, This Gun Can Hunt
While Matt has a big stable of varmint rifles, the Yellow Ackley has seen plenty of duty in the ‘Hog fields. Matt is from a farming family and he can shoot practically right out his back door (see top photo at the farm). He has nailed some big ground-hogs at 800 yards and beyond. The .243 AI does kick a bit compared to other varmint cartridges, but even with 105-106gr bullets, it’s not bad. He has considered adding a muzzle brake at some point to one of the barrels, just so he can see impacts better.

Screamin’ Yellow Dasher?

Matt originally thought of building the gun up as a 6BR or a 6BR Improved. He has a Manson reamer similar to a 6mm Dasher, with a 40-degree shoulder and .008″ body taper. He actually chambered a couple barrels with that 6BR Improved reamer, but he hasn’t shot them yet. He was so pleased with how the gun performed in .243 AI, that he saw no reason to change. And it may be a while before he slaps a Dasher-chambered barrel on the rig: “I really like the way it shoots as a .243 AI. I’m so impressed with it that I don’t want to mess with anything. And I don’t think I’ll be running out of Ackley barrels anytime soon.”

Millender’s .243 Ackley Improved Page

matt .243 Ackley Improved yellow rifle

.243 Win Dies and Reloading Gear

Since the .243 Win is such a popular cartridge, all the major die-makers offer reloading dies. It’s hard to go wrong with a Redding Type ‘S’ Full-length bushing die–item 77114 for the standard .243 Win and item 77420 for .243 AI. Whidden Gunworks also makes great .243 Win sizing dies (and custom .243 Win AI dies on request). These will both resize the case (and bump the shoulder) as necessary, and allow you to adjust neck tension with bushings. Alternatively, you can go with a body die, and a separate neck bushing die.

If you load primarily one brand of bullets, another slick set-up is to buy a Forster or Whidden full-length, non-bushing .243 Win sizing die, and then have Forster or Whidden hone the neck for your desired amount of tension. This elegant one-pass sizing solution produces very straight rounds with low run-out.

For bullet seating, both the Redding Competition Seater (item 55114) and the Forster Ultra-Seater (item U00034) work great for the standard .243 Win case. If you shoot a .243 Ackley, Redding’s .243 AI Comp Seater (item 55420) costs quite a bit more than the standard version Forster doesn’t list a .243 AI seater in their catalog. However, you can just run your chambering reamer into the inner sleeve of either seating die to fit the .243 Ackley Improved case.

If you want the “Cadillac” of production seater dies for the .243 Win, order the Wilson Stainless Micrometer seater (item 50-1114S) from Sinclair International. Costing only a few dollars more than a Redding Comp seater, this die is a joy to use, providing very positive control over bullet seating depth. When used with a quality arbor press, the Wilson offers unrivaled “feel” for bullet-seating force. This can help you monitor neck tension, one of the most critical factors in maintaining low ES and SD for long-range accuracy.

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September 20th, 2022

6.5 Creedmoor — Cartridge History and Norma Hunting Feature

Norma hunting africa elk deer eland 6.5 Creedmoor cartridge
6.5 Creedmoor (right) shown with .308 Win (left) and .243 Win (center) for comparison.

Though most popular for competition applications (PRS and XTC), the 6.5 Creedmoor is also a capable hunting cartridge. A few seasons back Norma spotlighted the 6.5 Creedmoor cartridge and outlined the game-harvesting capabilities of Norma 6.5 Creedmoor factory ammunition. Here are highlights of that article, which may interest hunters this fall.

Origins of the 6.5 Creedmoor
Dave Emary, senior engineer at Hornady, asked fellow competitive shooters about their “wish list” for a mid-sized round with long-range potential. It needed to offer efficiency, good ballistics, fine accuracy, and reliable feeding from a magazine. To achieve these goals, Emary necked the .30 T/C to .264 caliber (6.5 mm). The shoulder on this case is well to the rear, so long bullets with high ballistic coefficients can be used in short actions. The efficient Creedmoor case and its modest powder charge deliver hard hits on big game while keeping recoil modest. The case runs well in magazines sized for the .308 Winchester, and because it is efficient, the 6.5 Creedmoor delivers velocities very close to the .260 Remington (which is basically a 6.5-308 Win) with less powder. The 6.5 Creedmoor cartridge has shown excellent accuracy in PRS competition, though the 6mm Creedmoor has proven more competitive, given its reduced recoil. Overall the 6.5 Creedmoor has been a huge commercial success — the 6.5 CM is now one of the most-commonly chambered cartridges in new factory rifles.

Norma hunting africa elk deer eland 6.5 Creedmoor cartridge

Hunting with the 6.5 Creedmoor

by Wayne van Zwoll
I learned about the 6.5 Creedmoor by way of a rifle from Todd Seyfert at Magnum Research. The Remington 700 action wears a carbon-fiber barrel with a Krieger stainless core. GreyBull Precision added a stock and a modified 4.5-14X Leupold scope. Its 1/3-minute elevation dial is calibrated specifically for 130-grain boat-tail spitzers at Creedmoor velocities. “Spin the elevation dial to the distance in yards, and aim dead-on.” said GreyBull’s Don Ward. Prone with a sling, I was soon banging steel at 500 yards.

By the charts, the 6.5 Creedmoor is a superb cartridge for deer-size game. But I caught only a late elk season with this new rifle. The 6.5×55 and .260 had taken elk for me; surely the Creedmoor would as well. Alas, the close shot I’d wanted, to ensure precise bullet placement, didn’t come. When on the final evening Don and I spied a bull far off, there was no approach. “Your call,” he shrugged. “The air is dead-still.” I snugged the sling, prone, and dialed to the yardage. Ribs spot-lit by a sinking sun, the bull paused. Craaack! The animal spun, sprinted and fell. That shot was twice as long as any I’d ever attempted at elk.

Whitetail hunting with a Ruger 77, then a trip to sub-Saharan Africa with a T/C Icon, kept the 6.5 Creedmoor in my ammo pouch. The T/C dropped a Vaal Rhebok at 250 yards, in stiff wind. Shorter pokes on a variety of game produced consistently quick kills. I found the Creedmoor’s limit with an eland.

Norma hunting africa elk deer eland 6.5 Creedmoor cartridge
A high ballistic coefficient helped a Creedmoor bullet slice stiff wind 250 yards to this Vaal Rhebok.

Since then, I’ve seen several animals brought to bag by the 6.5 Creedmoor. And I’ve used it in a variety of rifles on paper and steel targets to 1,200 yards. It has become one of my favorite cartridges for deer-size game. Its mild report and recoil make it easy to shoot accurately. It seems an inherently accurate cartridge too. I’ve punched half-minute groups from production-class rifles. The proliferation of hunting loads for the 6.5 Creedmoor includes none better than Norma’s 130-grain Scirocco. This sleek, polymer-nose bullet, with its 15° boat-tail and a G1 BC over .550, flies very flat. In expansion and penetration tests, it opens reliably down to 1,750 fps, and drives straight and deep. A bonded bullet, it stays in one piece after high-speed impact, routinely retaining more than 80% of its original weight.

Story Tip from EdLongrange. We welcome reader submissions.
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April 17th, 2022

Sunday Gunday: Amazing Mad Minute Norway Speed Shooting

Mad Minute Norway Haga 6.5x55 speed shooting marksmanship British Army

Think you can shoot fast with a bolt gun? Bet you can’t beat these Norwegian speed-demons. In 2019, Inge Hvitås set a Mad Minute World Record, putting 39 rounds inside a 16″ circle at 200 meters, all in a single minute. At the same match, another Norwegian ace fired 48 rounds in a minute, with 38 in the bullseye. Now that’s spectacular speed and accuracy. We first ran this story in 2019 when the record was set. Wikipedia reports this is still the current record. So we believe no one has ever put more rounds on a 16″ target at 200m (with a bolt-action rifle) than Inge Hvitås. We include videos showing Inge’s amazing sequence.

Watch Inge Hvitås Set New Mad Minute World Record:


NOTE: This video, hosted by Facebook, may be slow to load. But be patient — it’s amazing to watch! CLICK HERE to run this story all by itself, speeding up the video load.

Mad Minute Norway Haga 6.5x55 speed shooting marksmanship British Army

Mad Minute World Record — 39 Hits in One Minute (60 seconds)
At the Haga shooting range in Norway, spectators witnessed spectacular speed shooting in 2019. Norwegian shooter Inge Hvitås set a Mad Minute Challenge World Record with 39 hits in ONE MINUTE at 200m. The target was a 40cm (15.75″) bullseye placed at 200m (218 yards). Fellow Norwegian Jesper Nilsstua also shot brilliantly, sending 48 rounds down-range in one minute. Jesper had 38 hits, missing the record by just one. Both shooters were using iron-sighted Sauer 200 STR target rifles, which are normally chambered for the 6.5×55 cartridge. For this event, magazines are limited to 5 rounds and shooters may use slings but no bipods or other support.

Amazing Bolt-Gun Cycling Speed — 48 Rounds in One Minute

Another Norwegian ace, Jesper Nilsstua, missed the Mad Minute Challenge record (by one hit), but boy was he fast. Dennis Santiago (who has done his own Mad Minute drill), was dazzled: “This dude didn’t get the new world’s record of 39 hits in 60 seconds. He ‘only’ got 38 hits after getting off an amazing 48 shots in 60 seconds. Watch the smoothness of his shooting. It’s amazing.”


NOTE to Readers: This video is hosted by Facebook. It may be slow to load. But it is worth watching.

Mad Minute Norway Haga 6.5x55 speed shooting marksmanship British Army

Mad Minute Norway Haga 6.5x55 speed shooting marksmanship British Army electronic targets
For the Mad Minute Challenge in Norway, a standard 200m DFS target was used, with 1 point per hit within the black area which is 40cm (15.75″, or 6.9 MOA) in diameter.

Norwegian Mad Minute Challenge — Event Rules
The organizers of the event posted: “The Mad Minute Challenge [is] a modern edition of a old military drill. This is a place for sport shooters to … share experiences on the subject of speed shooting with bolt-action rifles. The Mad Minute Challenge is all about the sport! To make a attempt for the record everyone must follow these five simple rules:”

Mad Minute Norway Haga 6.5x55 speed shooting marksmanship British Army rules

Mad Minute Norway Haga 6.5x55 speed shooting marksmanship British Army

Rapid-Fire Shooting Comparison Video
To illustrate the remarkable speed of Norwegian champion Inge Hvitås, this video shows Inge (top of frame) compared with other skilled competitors shooting the same 1-minute course of fire in Lesja, Norway.

About the Original MAD MINUTE
“Mad Minute” was a pre-World War I term used by British Army riflemen during training at the Hythe School of Musketry to describe scoring a minimum of 15 hits on a target at 300 yards within one minute using a bolt-action rifle (usually a Lee-Enfield or Lee-Metford rifle). It was not uncommon during the First World War for riflemen to greatly exceed this score. The record, set in 1914 by Sergeant Instructor Alfred Snoxall, was 38 hits.

Mad Minute Lee Enfield

Listed as “Practice number 22, Rapid Fire” of The Musketry Regulations, Part I, 1909, this drill required at least 15 shots on the Second Class target at 300 yards. The exercise was just one of several annual tests to classify a soldier as a sharpshooter, first or second class shooter depending on the points achieved.

Made Minute Second Class targetResearch indicates the Second Class target was a 48″ x 48″ square with 24″ inner circle and 36″ outer circle. The sight mark was a central 12″ x 12″ shape representing a soldier. ALL hits scored points (3 for center circle, 2 for outer circle, 1 for outer square). NOTE: Though some sources say the Mad Minute drill used a 12″-diameter round target, this appears to be a mistake from Ian Hogg’s book “The Encyclopedia of Weaponry”. No other source mentions a 12″ circle, which would be a mere 3.82 MOA. In reality the true drill target was a 48″ x 48″ square, roughly 15 times larger. (From No.WikiPedia.)

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February 24th, 2022

How Cartridge Brass (and Bullets) Are Made — Great Norma Video

Norma factory ammo production video

Guys — honestly, if you do anything today on this site, watch this video. You won’t be disappointed. Guaranteed. This is a very informative (and surprisingly entertaining) video. Every serious hand-loader should watch this video to see how cartridge cases are made. Your Editor has watched the video 5 times now and I still find it fascinating. The camera work and editing are excellent — there are many close-ups revealing key processes such as annealing and head-stamping.

VERY Informative Video Show Cartridge Brass and Ammunition Production:

Norma has released a fascinating video showing how bullet, brass, and ammunition are produced at the Norma Precision AB factory which first opened in 1902. You can see how cartridges are made starting with brass disks, then formed into shape through a series of processes, including “hitting [the cup] with a 30-ton hammer”. After annealing (shown at 0:08″), samples from every batch of brass are analyzed (at multiple points along the case length) to check metal grain structure and hardness. Before packing, each case is visually inspected by a human being (3:27″ time-mark).

The video also shows how bullets are made from jackets and lead cores. Finally, you can watch the loading machines that fill cases with powder, seat the bullets, and then transport the loaded rounds to the packing system. In his enthusiasm, the reporter/narrator does sometimes confuse the term “bullets” and “rounds” (5:00″), but you can figure out what he means. We definitely recommend watching this video. It’s fascinating to see 110-year-old sorting devices on the assembly line right next to state-of-the art, digitally-controlled production machinery.

Video tip by EdLongrange. We welcome reader submissions.
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January 23rd, 2022

Ammo, Ammo, Ammo — New Offerings for 2022

field stream berger hornady norma winchester ammunition hunting 300 prc

Field & Stream magazine recently released a helpful guide to new ammunition offerings as seen at SHOT Show 2022. The article features 21 different new ammo types for pistols, rifles, and shotguns. Many of the new ammo types, such as Hornady CX and CCI Blazer, feature lead-free projectiles. The Blazer even employs lead-free primers. Among the most notable new ammo selections is the Berger line, which features high-BC projectiles and superb Lapua brass. New for 2022 is Berger 6.5 PRC and .300 PRC ammunition. Here are our selection of four notable, new-for-2022 Ammo products for rifle shooters. SEE all 21 new ammo types on Fieldandstream.com.

Berger 6.5 PRC and .300 PRC Hunting Ammo

field stream berger lapua ammunition hunting 6.5 300 prc

Berger has added the 6.5 PRC and 300 PRC cartridges to its loaded ammo line which features great Lapua brass. The 6.5 load features the heavy 156gr Berger Elite Hunter bullet running at 2960 FPS. This bullet boast a very high G1 ballistic coefficient (BC) of 0.679. Packing even more powder, Berger’s .300 PRC load features the 0.631 BC Berger Elite Hunter bullet. Tested muzzle velocity is 2895 FPS.

Hornady Hunting Ammo with Solid Copper CX Bullets

hornady cx copper alloy lead-free bullet

For 2022, Hornady has introduced a new CX™ (Copper alloy eXpanding) hunting projectile. This CX bullet is designed to provide outstanding performance when hunting in areas where solid lead or lead-core bullets are prohibited. Hornady states: “The new CX™ bullet from Hornady represents the most advanced monolithic hunting bullet on the market. Its optimized design offers extended range performance, greater accuracy, high weight retention, and deep penetration.” The CX will be available in a number of calibers/bullet weights: 6mm, .25 Cal, 6.5mm, .270 Cal, 7mm, .308, .338, and .375.

Norma .22 LR Rimfire Ammo — Three New Offerings

field stream norma rimfire .22 LR Xtreme, ECO Powder Hunter power ammunition hunting 6.5 300 prc

Norma announced three new .22 LR rimfire ammo types to be released in 2022: Xtreme LR-22, ECO Power 22, and Hunter Power 22. The Xtreme LR-22 should prove popular in the growing long-range rimfire PRS/NRL disciplines. The LR-22 offers higher BC for better long-range performance. The new ECO Power 22 has a lead-free zinc hollowpoint bullet traveling at a very fast 1700 FPS — on the high end for any .22 LR on the market. Norma’s Hunter Power 22 features a 40gr bullet designed for controlled expansion. This Power 22 ammo runs at 1260 fps with 142 foot-pounds of muzzle energy.

Winchester New Lead-Free Copper Impact Hunting Ammo

field stream winchester copper impact hunting ammunition ammo lead-free 6.5 300 prc

Winchester’s new Copper Impact hunting ammunition features a tipped high-BC bullet. Winchester states that the Extreme Point helps create “immediate expansion”. Field and Stream’ reviewer states that “All this, combined with a lead-free bullet that will retain most of its weight, makes for a deep-penetrating big-game stopper[.]” Winchester’s new Copper Impact ammunition for over 12 different cartridge types, including the 6.5 Creedmoor, 6.8 Western, .308 Win, and even the .350 Legend.

Ammunition News — Ammo Inc. Acquires Gunbroker, Builds Wisconsin Ammo Factory

Ammo inc. factory shot show 2022 wisconsin factory interview

In this interview, Mark Hanish (Pres., Global Sales & Marketing) of Ammo Inc. (Nasdaq: POWW) talks about his company. This enterprise is making significant moves in the firearms/shooting sports industry. Hanish discusses Ammo, Inc’s modern new 160,000-sq.ft. ammunition manufacturing plant in Manitowac, WI, and the company’s 2021 acquisition of GunBroker.com. Through a $240 million merger in May 2021, GunBroker.com officially become an Ammo Inc. subsidiary.

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January 15th, 2022

Changes in Humidity Can Alter Powder Burn Rates — IMPORTANT

Tech Tip Norma Powder gunpowder moisture temperature humidity

Most shooters realize that significant changes in temperature will alter how powders perform. That’s why you want to keep your loaded ammo out of the hot sun, and keep rounds out of a hot chamber until you’re ready to fire. But there are other factors to be considered — HUMIDITY for one. This article explains why and how humidity can affect powder burn rates and performance.

We’ve all heard the old adage: “Keep your powder dry”. Well, tests by Norma have demonstrated that even normal environmental differences in humidity can affect the way powders burn, at least over the long term. In the Norma Reloading Manual, Sven-Eric Johansson, head of ballistics at Nexplo/Bofors, presents a very important discussion of water vapor absorption by powder. Johansson demonstrates that the same powder will burn at different rates depending on water content.

Powders Leave the Factory with 0.5 to 1.0% Water Content
Johansson explains that, as manufactured, most powders contain 0.5 to 1% of water by weight. (The relative humidity is “equilibrated” at 40-50% during the manufacturing process to maintain this 0.5-1% moisture content). Importantly, Johansson notes that powder exposed to moist air for a long time will absorb water, causing it to burn at a slower rate. On the other hand, long-term storage in a very dry environment reduces powder moisture content, so the powder burns at a faster rate. In addition, Johansson found that single-base powders are MORE sensitive to relative humidity than are double-base powders (which contain nitroglycerine).

Tests Show Burn Rates Vary with Water Content
In his review of the Norma Manual, Fred Barker notes: “Johansson gives twelve (eye-opening) plots of the velocities and pressures obtained on firing several popular cartridges with dehydrated, normal and hydrated Norma powders (from #200 to MRP). He also gives results on loaded .30-06 and .38 Special cartridges stored for 663 to 683 days in relative humidities of 20% and 86%. So Johansson’s advice is to keep powders tightly capped in their factory containers, and to minimize their exposure to dry or humid air.”

Confirming Johansson’s findings that storage conditions can alter burn rates, Barker observes: “I have about 10 pounds of WWII 4831 powder that has been stored in dry (about 20% RH) Colorado air for more than 60 years. It now burns about like IMR 3031.”

What does this teach us? First, all powders start out with a small, but chemically important, amount of water content. Second, a powder’s water content can change over time, depending on where and how the powder is stored. Third, the water content of your powder DOES make a difference in how it burns, particularly for single-base powders. For example, over a period of time, a powder used (and then recapped) in the hot, dry Southwest will probably behave differently than the same powder used in the humid Southeast.

Reloaders are advised to keep these things in mind. If you want to maintain your powders’ “as manufactured” burn rate, it is wise to head Johannson’s recommendation to keep your powders tightly capped when you’re not actually dispensing charges and avoid exposing your powder to very dry or very humid conditions. The Norma Reloading Manual is available from MidwayUSA for $24.99.

Real-World Example — “Dry” H4831sc Runs Hotter

Robert Whitley agrees that the burn rate of the powder varies with the humidity it absorbs. Robert writes: “I had an 8-lb. jug of H4831SC I kept in my detached garage (it can be humid there). 43.5-44.0 gr of this was superbly accurate with the 115 Bergers out of my 6mm Super X. I got tired of bringing it in and out of the garage to my house for reloading so I brought and kept the jug in my reloading room (a dehumidified room in my house) and after a few weeks I loaded up 43.5 gr, went to a match and it shot awful. I could not figure out what was going on until I put that load back over the chronograph and figured out it was going a good bit faster than before and the load was out of the “sweet spot” (42.5 – 43.0 gr was the max I could load and keep it accurate when it was stored in less humid air). I put the jug back in the garage for a few weeks and I now am back to loading 43.5 – 44.0 gr and it shoots great again. I have seen this with other powders too.”

If you have two jugs of the same powder, one kept in a room in your house and one somewhere else where it is drier or more humid, don’t expect the two jugs of the same lot of powder to chrono the same with the same charge weights unless and until they are both stored long enough in the same place to equalize again.

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