Shooters contemplating purchase of a .338 LM rifle often ask: “What length barrel should I get?” Rifleshooter.com recently performed a test that provides interesting answers…
Our friends at RifleShooter.com like to slice and dice — barrels that is. They have done barrel length cut-down tests for popular calibers like the .223 Rem, 6.5 Creedmoor, and .308 Winchester. But now they’ve tackled something way bigger — the .338 Lapua Magnum, a true “Big Boomer”. Starting with a beefy 30″-long Pac-Nor Barrel, RifleShooter.com chopped the tube down in one-inch increments all the way down to 17 inches (that’s 14 different lengths). At each new (shorter) barrel length, velocity was measured with a MagnetoSpeed chronograph using two different loads, 250gr SMKs with H4831sc and 300gr SMKs with Retumbo. Four shots were fired at each length with each load, a total of 112 rounds.
Load #1: 250gr Sierra MK, Lapua brass, CCI #250 primer, H4831SC, OAL 3.720″.
Load #2: 300gr Sierra MK, Lapua brass, Win WLRM primer, Retumbo, OAL 3.720″.
The .338 Lapua Magnum is a jumbo-sized cartridge, that’s for sure…
Donor Barrel Sacrificed for Science
Rifleshooter.com’s Editor explains: “Brandon from Precision Addiction offered to send us his .338 barrel for our .338 Lapua Mag test. I took him up on his offer and he sent me his used Pac-Nor chrome-moly barrel with about 600 rounds though it. This thing was a beast! A heavy 1.350″ shank that ran straight for 6″, until tapering to 1″ at 30″ in length.”
Results Summary
.338 Lapua Magnum with 250gr Sierra MatchKings
After shortening the barrel from 30″ to 17″, total velocity reduction for the 250-grainers was 395 FPS, an average loss of 30.4 FPS per 1″ cut. The amount of velocity loss per inch rose as the barrel got shorter, with the biggest speed reduction, a loss of 55 FPS, coming with the cut from 18″ to 17″.
Start Velocity: 2942 FPS | End Velocity: 2547 FPS | Average Loss Per Inch: 30.4 FPS
.338 Lapua Magnum with 300gr Sierra MatchKings
Shooting the 300-grainers, total velocity reduction was 341 fps, an average of 26.2 FPS loss per 1″ cut (30″ down to 17″). However, the speed actually increased with the first cut from 30 inches to 29 inches. The tester noted: “The 300 SMK load showed a slight increase from 30″ to 29″. I’ve recorded this in other tests and it seems to be more common with a heavier load. I suspect it is primarily due to the small sample sizes being used along with the relative proximity of muzzle velocities in adjacent lengths.”
Start Velocity: 2833 FPS | End Velocity: 2492 FPS | Average Loss Per Inch: 26.2 FPS*
*Velocity rose with first cut. Velocities ranged from 2,871 FPS (29″) to 2,492 FPS (17″) for a total velocity loss of 341 FPS.
RifleShooter.com crunched the velocity numbers in some interesting ways. For example they analyzed rate of velocity loss, concluding that: “after the initial rate change, the rate of the change in velocity is fairly consistent.” (View Rate of Change Graph)
How Velocity Loss Alters Long-Range Ballistics
The testers wanted to determine how the velocity reductions “affect our ability to hit targets downrange”. So, Rifleshooter.com plotted changes in elevation and wind drift at all barrel lengths. This revealed something interesting — drift increased significantly below 26″ barrel length: “Above 26″ things look pretty good, below 22″ they change quickly.”
We highly recommend you read the whole story. Rifleshooter.com put in serious time and effort, resulting in solid, thought-provoking results. The data is presented in multiple tables and graphs, revealing inch-by-inch velocities, change “deltas”, and SDs at each length.
There are still some openings left for the June 2017 Williamsport 1000 Yard Benchrest School. “If you have been considering long range competition, come on out and learn from some of the top shooters in the game. This school will take years off of the typical learning curve.”– Eric Wolfgang, Original PA 1000 Yard Benchrest Club Secretary/Statistician.
Praise from a 1K Benchrest School Grad
Here’s a testimonial from a recent graduate: “I can attest to the knowledge that you gain. I went last year and loved it. Have renewed my membership in the Club and would love to go this year. I would love to take the course again. In the photo above I am in the back row, fourth from the right — sunglasses and blue shirt.” — Bob, Class of 2016
The 10th Annual Williamsport 1000-Yard Benchrest School will be held Saturday June 3 and Sunday June 4, 2017. There are still a few slots available for this year’s session. Classes, taught by top 1K shooters, are held at the Original Pennsylvania 1000-Yard Benchrest Club Range, one of the best 1K ranges in the country. See photos at: www.PA1000yard.com
Participants will learn all aspects of long-range benchrest shooting from some of the most skilled marksmen in the country. Much time is spent at the loading bench and on the firing line. Classes cover load development, precision reloading, bench skills, and target analysis. You don’t even need guns and ammo — all equipment and ammunition will be provided.
School instructors tell us: “This year’s benchrest school will be a 2-day weekend event. (There is also an optional ‘Meet and Greet’ gathering Friday evening). The school is a beginner class designed to teach the fundamental skills needed to be competitive at at 600 and 1000 yards. Saturday will be spent in class covering a range of topics including reloading ‘dos and don’ts’, load development and equipment handling. Sunday we will shoot an actual match to see what you’ve learned.”
Cost for the class is $375.00 including lunches on Sat/Sun and dinner on Saturday. Don’t hesitate if you want to attend the 2017 school. For more INFO email Ray McKinsey, Joe Saltalamachia, or Eric Wolfgang via this Club Contact Page.
Watch Williamsport Benchrest School Slideshow: Please enable Javascript and Flash to view this VideoPress video.
This slideshow was produced by Sebastian Reist an alumnus of the 2009 Williamsport 1000-yard BR school. SEE: www.sreistphotography.com.
At the request of our readers, we provide select “Deals of the Week”. Every Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
Here’s a great deal on a versatile Vortex Viper 6.5-20x44mm scope that can be used for target work, varmint hunting, or even tactical games. This scope features XD (low dispersion) glass, side-focus parallax, and a 30mm maintube. It offers 1/4-MOA clicks with 65 MOA of elevation adjustment and side-focus parallax control. Two reticle choices are offered: 1) Dead-Hold BDC, and 2) Mil-DOT. Backed by Vortex’s VIP Unconditional Lifetime Warranty, this Viper is on sale for just $329.99 at MidwayUSA, with free shipping.
2. Cabela’s — Lyman T-Mag II Turret Press, $139.99 with CODE
This week, with Discount Code “17SPRING” you can get the rugged Lyman T-Mag II Press for just $139.99 at Cabelas.com. That’s $20 cheaper than the best price we’ve found elsewhere. Every serious reloader should have a good turret press. You can put a variety of seating dies on the turret and use your single-stage press for sizing duties. Or use the turret for bullet pointers or other specialized dies. The new six-station T-Mag II features a strong cast-iron frame and improved Turret Retention System for smooth indexing. The Turret head detaches so you can easily change calibers (or complete die sets). Included are priming arm, primer catcher, and turret handle. NOTE: We did walk through Cabela’s purchase process and confirmed the $20.00 Price reduction with CODE “17SPRING”.
3. Grafs.com — Hornady Ultrasonic Cleaner Plus Tumbler, $99.99
Here’s a great combo deal from Grafs.com. For just $99.99, you get BOTH the Hornady Lock N Load Sonic Case Cleaner (MSRP $99.99) AND the Hornady Vibratory M2 Tumbler (MSRP $49.99). That’s a 47% savings off normal retail. This combo give you the option to clean your brass ultrasonically or by using the traditional tumbling with media method. PLUS — with this bundle you get a free Hornady insulated Mug, a $12 value.
4. Midsouth — Lee Auto Bench Priming Tool, $25.96
This relatively new bench tool does the job very well, and its easy to change primer sizes and shell holders. The “feel” of this tool is very good (better than most other bench priming units). If you like to pre-prime cases before using a progressive — this tool gets the job done fast. The tool includes a new folding tray with built-in primer flipping feature that allows direct filling from common primer boxes. The tool mounting holes are spaced for the Lee Bench Plate system (#006-90251) or the device can be mounted directly to your workbench. NOTE: Reviews by verified purchasers have been very positive.
Here’s a great deal on Pacific Tool & Gauge-crafted Rem actions with PT&G bolts. These are new Remington-made actions, blueprinted, with PT&G bolts fitted. Sold by PT&G’s retail outlet Cabin Fever Sports, these are pretty much the same as PT&G’s $640 actions with special promo pricing. The prices for the Right Hand actions are $380.00 to $420.00 depending on bolt face. Cabin Fever Sports also has roughly 20 Left Hand (LH) Rem actions at $399.99. You can choose trigger type and add options, such as bolt fluting, for a few dollars more. Order online, or call in and ask for special pricing.
6. Natchez — Hornady 22-Cal Varmint Bullets, $9.99 Per 100
Headed out for a varmint safari soon? Need inexpensive bullets for your .223 Rem or 22-250? Then check out this deal on Hornady 55-grainers from Natchez. Get 100 Soft Point .224-Caliber FB bullets for just $9.99. At that price, it doesn’t hurt so much when you shoot 1000+ rounds over a weekend. With good expansion, these bullets work great on prairie dogs and other small critters. Note: These sale bullets ship in a bag, not the box as shown.
If you are serious about your precision firearms, you need one of these. We use the Lyman Electronic Trigger Pull Gauge to test the triggers on all our match and varmint rifles. The unit is precise and repeatable. Once you try one of these you won’t want to go back to crude spring trigger gauges. Amazon.com offers this unit for $47.99 with free shipping for Prime members. Walmart also has it for $51.95 with free shipping or free in-store pickup.
8. CDNN Sports — Taylor 3″ Semi-Serrated Lock-Blade Knife, $6.50
Amazing bargain — This Taylor Lock-Blade Knife features a 3″ stainless steel, titanium-coated blade. The semi-serrated blade works well on heavy straps/materials, making this Taylor knife more versatile. Weight is 9.5 ounces. Open the knife is 8″ long, closed 4.9″. The blade has a thumb knob for easy one-handed opening while the handle boasts a handy stainless steel pocket clip. A crazy-good deal at $6.50, this knife is covered by Taylor Brand’s limited lifetime warranty.
We like reactive targets. It’s fun to “ring steel” and see a target move instantly when hit. For just twenty bucks (including shipping), it’s hard to go wrong with this 8″ AR500 Steel Gong. The 8″-diameter size is big enough for zeroing at 200 yards, yet offers a nice challenge at 500 yards and beyond. There is also a 6″-diameter model for just $14.00. Both sizes currently ship for FREE.
The CMP’s ranges in Ohio and Alabama each received two Pardini air pistols plus an Olympic-grade Pardini GPR1 air rifle. The GPR1 was designed in collaboration with Niccolo Campriani, a three-time air rifle Olympic gold medalist.
Pardini USA has generously donated new air rifles and air pistols to the Civilian Marksmanship Program’s (CMP) air gun ranges. The Gary Anderson CMP Competition Center at Camp Perry, Ohio, and the South Competition Center in Anniston, Alabama, both received a precision Pardini GPR1 air rifle and two handsome Pardini K12 air pistols.
These fine Pardini air guns are available for demonstration and use by the public during the CMP’s Marksmanship Nights, held every Tuesday and Thursday evening from 5 pm to 8pm in Ohio, and from 4 pm to 7 pm in Alabama. Shooters of all skill levels are welcome to participate. To learn more about CMP Marksmanship Nights, visit the CMP’s Competition Center Webpage.
The air guns are specially engraved, “To the CMP from G.P. Pardini”.
These Pardini air guns found a home at the CMP’s ranges thanks to Vladimir Chichkov, a partner at Pardini USA LLC. “I would like to thank Vladimir Chichkov for taking the time to introduce me to Pardini USA rifles and pistols last year during the National Rifle and Pistol Matches,” said Lue Sherman, a CMP staff member at Camp Perry. “I think having these in our ranges, especially at Camp Perry where those who attend the National Matches will be able to witness the guns for themselves, will be great for both the CMP and Pardini USA.”
In Brownells’ GunTech™ Archive of instructional articles and videos, Eric Kiesler has written an informative Guide to Metal Prep for bluing or bake-on resin coatings. Eric’s “how-to” advice will be useful for prepping something as small as a scope ring or as large as a complete barrelled action. Here is a selection from Eric’s article:
Gunsmith’s Guide to Metal Prep for Baking & Bluing
By Eric Kiesler
Prior to bluing or the application of a bake-on coating, a steel surface must be properly prepared. In either case, at a minimum the work piece must be thoroughly and completely degreased. There are many acceptable ways to degrease steel parts, so long as no residue remains the method used is not critical. We typically recommend TCE (#083-060-024) for degreasing prior to the application of Brownells Baking Lacquer (#083-046-801) or Oxpho Blue (#082-024-004). The TCE in the spray can is preferable as it allows you vigorously spray the surface, start at the top of the part and hose it down to the bottom chasing the grease off.
Prior to hot caustic Bluing (#082-005-007) the parts are immersed in a heated detergent bath using Dicro-Clean (#082-005-008) because (like TCE) we know it will have no adverse after effects or residue that could cause problems later on. Once the degreasing is complete, the part could be blued or coated, however, with bake on coatings, adhesion is greatly enhanced if the surface of the parts are roughed up. This can be accomplished by sanding them with a fine abrasive cloths, sand paper, Emory Cloth (#657-110-120) or by abrasive blasting. Abrasive blasting is preferable because it will typically reach areas that sand paper might not.
For the Gun Kote (#083-051-001) brand of bake-on finish, aluminum oxide (#084-206-060) must be used as the abrasive blasting media in your abrasive blaster. For our other bake on coatings (and even Aluma-Hyde) sand or glass beads may be used in the blaster. If you do abrasive blast the part (highly recommended), it should be degreased afterwards because the blasting media may have contaminants in it. You don’t want to coat a highly polished part since shiny metal resists the coating, but a highly polished part could certainly be blued.
Serious ammo — .375 Lethal Magnum rounds loaded with 400gr Cutting Edge Lazer bullets. One wag posted “They look like SCUD missiles.”
In the Extreme Long Range (ELR) game, great ballistics are paramount, but you also need excellent accuracy. The top ELR shooters campaign large-caliber rifles that boast truly remarkable accuracy, considering the massive cartridges they’re shooting (with 160+ grains of powder). These big boomers, such as the .375 Lethal Magnum shown above, can really hammer.
The winner of the 2016 King of 2 Miles (KO2M) event was Mitchell Fitzpatrick, shooting a .375 Lethal Mag cartridge, as part of Team Applied Ballistics. Another member of that squad, Paul Phillips, is also campaigning a new rifle chambered for the .375 Lethal Magnum. Paul was recently doing load development for his new beast, which features a McMillan stock, Nightforce scope, and Phoenix Bipod. Among his barrels for this rig is a massive, 38″-long Bartlein.
“I had a great time today doing load development at Applied Ballistics LLC laboratory with Bryan Litz, Bill Litz, and Mitchell Fitzpatrick. I was testing loads for my .375 Lethal Mag built by Lethal Precision Arms LLC. The last several test groups were sub half-min at 300 yards. Next testing is at 1800 yards.” — Paul Phillips
For this test, Paul’s load featured 400gr Cutting Edge Lazer bullets launched at a blistering 3290 FPS with Hodgdon H50BMG powder. Looks like Paul got his load dialed in “good and proper”. He fired a 0.9″ group at 300 yards, and the Oehler System 88 chronograph showed a very low Extreme Spread (ES) of just 5 FPS. That’s impressive even for just three shots.
A little snow on the ground can’t stop the Applied Ballistics testing team…
Look carefully and you’ll find the powder charge weight — a bit more than you’d load in a 6PPC…
Bryan Litz inspects the .375-caliber barrel with bore-scope.
Serious reloaders know that PMA Tool makes some of the best specialty reloading tools you can buy. To help folks get the most out of their PMA products, the company offers “how-to” videos. One such video features PMA’s great Micro-Adjust Case Trimmer. PMA owner Pat Reagin tells us: “We’ve had quite of bit of interest in the case trimmer, but a lot of guys want to see it in action. So we’ve created an intro video that shows how to adjust and use the trimmer in various modes.”
Watch Micro-Adjust Case Trimmer Video
The PMA Micro-Adjust Case trimmer indexes off the shoulder but it also provides precise control over neck length. You aren’t limited to a built-in, neck-length setting like some other shoulder-indexed trimmers. The PMA Micro-Adjust Trimming tool currently sells for $129.95 including one cartridge insert. The inserts, which can be purchased for $13.95 separately, can often work for a multiple cartridge types within the same family. For example, you can use the same insert for both .243 Win and .260 Rem. There is another insert that works with both 7mm-08 and .308 Win.
PMA Micro-Adjust Case Trimmer Features:
Indexes off shoulder for easy, consistent trim length.
Cases captured in no-scratch, Delrin™ inserts.
Fully rotating head with bearing for smooth operation and clean, square cuts.
Sharp carbide cutter for quick, smooth cuts with minimal burr.
Spring loaded head allows complete control of rate of feed.
How to use the PMA Micro-Adjust Case Trimmer
The trimmer indexes case off the case shoulder through the use of interchangeable Delrin™ inserts which capture the shoulder and neck of the case. This insert is contained in a spring-loaded tool head that rides on a linear bearing. The Micro-Adjust Trimmer can be used in three ways.
First, you can secure the case in a PMA caseholder chucked in a power drill, drill press, or lathe. You hold the trimming tool with your hand and feed in the spinning case. (This method is handy because if you leave the case in the holder, after you have trimmed to length, you can switch tools and chamfer the case-mouth using the same power source).
In the second method, the trimmer’s adjustment knob is removed (after locking the setting) and the cutting shaft is chucked in a drill, drill press. or lathe. Using this method, the case itself is held by hand and fed into the cutter. Lastly, the trimmer can be used manually, holding the case in one hand and the trimmer in the other. That’s the slowest method, but it works if you do not have power tools handy.
Camp Perry photo. Starting this year, the High Power Championships will be held at Camp Atterbury, IN.
There are some big changes this year for the NRA National Rifle and Pistols Championships. The NRA High Power Rifle Championships will be held in Indiana (at Camp Atterbury), not at Camp Perry, Ohio. That’s new for 2017. The smallbore championships was moved a few years back to Camp Wa-Ke’-De Range in Bristol, Indiana. The Pistol Championships will remain at Camp Perry. So, when once all three Championships were held in the same historic place, Camp Perry, now they are in three locations. Some folks lament that change…
REGISTRATION OPEN for Championships
If you want to compete in any of the NRA National Championships, you can now register online. We provide links below for Highpower Rifle, Smallbore, and Pistol Event. When you register, you’ll need an identifier — NRA Member ID, NRA ID (15 digit number) or an NRA National Rifle and Pistol Championships Online Entry ID from a previous year’s entry. See the individual championship entry links listed below.
by Gavin Gear, UltimateReloader.com
Norma is known for its high-quality brass and ammunition. I’ve used Norma brass for precision reloading in calibers like .30-06 with great results. Recently, I saw that Norma had announced a new addition to their Professional Hunter lineup of ammunition: in 6.5 Creedmoor! I thought I should try some out with the Ruger Precision Rifle, and that’s what I’ll cover in this post.
As you saw in the video, this ammunition behaves more like match ammunition than it does hunting ammunition — I really wish it was deer season! Here are the chronograph results:
This article comes from the Midsouth Shooters Blog. You’ll find other helpful gear reviews, reloading tips, and technical articles at www.MSSBlog.com.
With an SD of 13.7 FPS, this ammunition is very consistent in terms of velocity. It’s not surprising that the first four shots went into a .5″ group. This new ammunition is built around the Swift Scirocco II 6.5mm Bullet, and here’s more info about this precision-oriented hunting projectile:
Technical Information
Caliber: 264, 6.5mm
Bullet Diameter: 0.264
Bullet Weight: 130 Grains
Bullet Length: 1.350″
Bullet Style: Polymer Tip Spitzer Boat Tail
Bullet Coating: Non-Coated
Ballistics Information:
Sectional Density: .266
Ballistic Coefficient:.571
This is certainly a great choice of ammunition if you are hunting medium game with a rifle chambered in 6.5 Creedmoor. Can’t wait to sit down again with this ammunition to see if I can get that 3/8″ 5-shot group I know this ammo is capable of! If you want to try this Norma 6.5 Creedmoor Professional Hunter ammo yourself, you can purchase this excellent ammunition at Midsouth Shooters Supply.
The IWA Outdoor Classics trade show, aka “Euro SHOT Show”, opened today, March 3rd, in Nuremberg, Germany. For the next four days (March 3-6), 1455 exhibitors will show their products at the Nuremberg Exhibition Centre. This is a hugely popular event — last year’s IWA Outdoor Classics trade show attracted 45,530 trade visitors from 115 countries, and attendance should be even higher this year. IWA is Europe’s biggest combined trade show for the hunting, shooting, and civilian/military security industries. And this year, IWA Outdoor Classics was coordinated with EnforceTac, a two-day Law Enforcment/Security trade show held in Nuremberg March 1-2, 2017.
IWA even features an indoor Archery Range. For many years, the Archery Range has been a popular gathering place where exhibitors and visitors can practice their skills and learn about the latest archery products up close and personal.
About the IWA Outdoor Classics Trade Show
What is now the IWA Outdoor Classics trade show began 44 years ago as Germany’s national product show for gunsmiths and gun retailers. That product show started modestly in 1973 with less than 100 exhibitors. Over the past four decades IWA Outdoor Classics has grown into a massive event, drawing the major players in the hunting, security, and shooting sports industries. In the firearm universe, the IWA event is second only to America’s SHOT Show in importance.
The 10th Annual 
Prior to hot caustic Bluing (#082-005-007) the parts are immersed in a heated detergent bath using Dicro-Clean (#082-005-008) because (like TCE) we know it will have no adverse after effects or residue that could cause problems later on. Once the degreasing is complete, the part could be blued or coated, however, with bake on coatings, adhesion is greatly enhanced if the surface of the parts are roughed up. This can be accomplished by sanding them with a fine abrasive cloths, sand paper, Emory Cloth (#657-110-120) or by abrasive blasting. Abrasive blasting is preferable because it will typically reach areas that sand paper might not.
For the Gun Kote (#083-051-001) brand of bake-on finish, aluminum oxide (#084-206-060) must be used as the abrasive blasting media in your abrasive blaster. For our other bake on coatings (and even Aluma-Hyde) sand or glass beads may be used in the blaster. If you do abrasive blast the part (highly recommended), it should be degreased afterwards because the blasting media may have contaminants in it. You don’t want to coat a highly polished part since shiny metal resists the coating, but a highly polished part could certainly be blued.
