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December 13th, 2024

6.5 Creedmoor and Seven Other 6.5mm Cartridge Types

6.5 Cartridge Guide Eben Brown EABco e. arthur brown 260 rem 6.5x47 6.5 creedmoor  6-5-284 6.5x55
Chart created with Ammoguide’s Visual Comparison Tool. Visit Ammoguide.com to learn more.

One of our forum members was looking for a very accurate, mid-sized 6.5mm cartridge for target working and coyote hunting. There are many great options including the 6.5 Grendel, 6.5×47 Lapua, 6.5 Creedmoor, and Remington .260 (a 6.5-08). If you are considering the 6.5×47 you should read our 6.5×47 Cartridge Guide authored by the 6.5 Guys. This and other 6.5mm cartridges are covered in this introduction to 6.5 mm cartridges prepared by Eben Brown, President of Eabco.com.

Quick Guide to 6.5mm Cartridges

by Eben Brown, EABCO.com, (E. Arthur Brown Co. Inc.)
The current popularity of 6.5mm cartridges in the USA has been a long time in coming. I won’t go into my opinions on why it took so long to catch on. The important thing is that it finally HAS caught on and we’re now so fortunate to have a wide selection of 6.5mm cartridges to choose from!

6.5mm Grendel – Developed by Alexander Arms for the AR15 and military M4 family of rifles. The Grendel fits the dimensional and functional requirements of these rifles while delivering better lethality and downrange performance. [Editor: The little 6.5 Grendel delivers a lot of performance from a small package. This is one of the most accurate cartridge options for the AR15 platform.]

6.5mm BRM – Developed by E. Arthur Brown Company to give “Big Game Performance to Small Framed Rifles” — namely our Model 97D Rifle, TC Contender, and TC Encore. Velocities of 2400-2500 fps with 140gr bullets puts it just under the original 6.5×55 Swede performance.

6.5mm x 47 Lapua – Developed by Lapua specifically for international 300m shooting competitions (with some interest in long-range benchrest as well). Case capacity, body taper, shoulder angle, and small rifle primer are all features requested by top international shooters. You can expect velocities of 2500-2600+ with 140 gr bullets.

6.5x47 Lapua Cartridge guide

6.5mm Creedmoor – Developed by Hornady and Creedmoor Sports, the 6.5mm Creedmoor is designed for efficiency and function. Its shape reaches high velocities while maintaining standard .308 Winchester pressures and its overall length fits well with .308 Win length magazines. You can expect velocities of 2600-2700+ fps with 140gr bullets. [Editor: Yep, we know some PRS guys are loading hotter than that in bolt guns. We recommend you try the 120-130 grain bullets also with this cartridge. That may put you in a better accuracy node.]

This video reviews 6.5 Creedmoor Cartridge Brass options:

.260 Remington – Developed by Remington to compete with the 6.5mmx55 Swedish Mauser that was (finally) gaining popularity in 1996. By necking down the 7mm-08 Remington to 6.5mm (.264 cal), the .260 Remington was created. It fit the same short-action [receivers] that fit .308 Win, .243 Win, 7mm-08 Rem, etc. You can expect velocities of 2600-2700 fps with 140gr bullets in the 260 .Remington.

[Editor’s Note: In the .260 Rem, try the Lapua 120gr Scenar-Ls and/or Berger 130gr VLDs for great accuracy and impressive speeds over 2950 fps.]

6.5mm x 55 Swedish Mauser – This was the cartridge that started the 6.5mm craze in the USA. It is famous for having mild recoil, deadly lethality on even the biggest game animals, and superb accuracy potential. Original ballistics were in the 2500 fps range with 140gr bullets. Nowadays handloaders get 2600-2700+ fps.

[Editor’s Note: Tor from Scandinavia offers this bit of 6.5x55mm history: “Contrary to common belief, the 6.5×55 was not developed by Mauser, but was constructed by a joint Norwegian and Swedish military commission in 1891 and introduced as the standard military cartridge in both countries in 1894. Sweden chose to use the cartridge in a Mauser-based rifle, while Norway used the cartridge in the Krag rifles. This led to two different cartridges the 6.5×55 Krag and 6.5×55 Mauser — the only real difference being safe operating pressure.”]

6.5-284 Norma — This comes from necking the .284 Winchester down to .264 caliber. Norma standardized it for commercial ammo sales. The 6.5mm-284 was very popular for F-Class competition and High Power at 1,000 yards. However, many F-Class competitors have switched to the straight .284 Win for improved barrel life. 6.5-284 velocities run 3000-3100+ fps with 140gr bullets.

.264 Winchester Magnum – Developed by Winchester back in 1959, the .264 Win Mag never really caught on and may have delayed the ultimate acceptance of 6.5mm cartridges by US shooters (in my opinion). It missed the whole point and original advantage of 6.5 mm cartridges.

The Original 6.5mm Advantage
The special needs of long-range competition have skewed things a little. However the original advantages of 6.5mm cartridges — how deadly the 6.5mms are on game animals, how little recoil they produce, and how easy they are to shoot well — still hold true today.

6.5 Cartridge Guide Eben Brown EABco e. arthur brown 260 rem 6.5x47 6.5 creedmoor 6.5x55

Permalink - Videos, Bullets, Brass, Ammo, Reloading, Tech Tip No Comments »
February 21st, 2020

Gunsmithing Gone Bad — How NOT to Headspace a Barrel

Locktite Red barrel shoulder headspace Thomas Speedy Gonzales
This barrel’s shoulder was 0.025″ off the action because Red Locktite had been used on the threads.

Gunsmith Thomas ‘Speedy’ Gonzales offered this interesting report about how NOT to headspace a barrel. Hopefully you never discover something like this…

“A good friend and customer sent this rig in for repair after FedEx damaged the rifle during inbound transport from another smith. After repairing the stock and rebedding it, I decided to re-polish the barrel to make the repair perfect. Well this just added insult to injury as the barrel did not want to come off. After a few choice words, the barrel finally broke free only to reveal something very disturbing. It seems the barrel had been ‘headspaced’ by using RED Loctite to hold it in place.” [Editor: That’s definitely NOT how barrels should be fitted.]

Speedy was not happy: “I hope the smith that did this sees the photos and realized what jeopardy he put my customer in or anyone who shot the rifle for that matter. When cleaned up, the shoulder on the barrel was over 0.0250″ (25 thousandths) away from the face of the receiver.” [Editor: That’s a lot in this business]. Check out the images below to see how much the barrel rotated further inward when cleaned up. The barrel spun in nearly another eighth-turn or more. Not good.

Locktite Red barrel shoulder headspace Thomas Speedy Gonzales

Locktite Red barrel shoulder headspace Thomas Speedy Gonzales

Permalink - Articles, Gunsmithing, Tech Tip 3 Comments »
November 8th, 2017

Great Video Shows Custom 6.5×47 Lapua Rifle Build by S&S

S&S Precision 6.5x47 Custom Rifle gunsmithing Texas Stick Starks

Here’s one of the most popular videos from the Daily Bulletin archives. If you’ve ever wondered how a top-flight, custom rifle is built, watch carefully….

S&S Precision 6.5x47This video, produced for the folks at S&S Precision in Denton, Texas, shows a full custom 6.5×47 bench rifle being crafted from start to finish. It is a fantastic video, one of the best precision rifles video you’ll find on YouTube. It shows every aspect of the job — action bedding, chambering, barrel-fitting, muzzle crowning, and stock finishing.

You’ll be amazed at the paint job on this rig — complete with flames and four playing cards: the 6, 5, 4, and 7 of spades. Everyone should take the time to watch this 13-minute video from start to finish, particularly if you are interested in stock painting or precision gunsmithing. And the video has a “happy ending”. This custom 6.5×47 proves to be a real tack-driver, shooting a 0.274″ three-shot group at 400 yards to win “small group” in its first fun match. NOTE: If you have a fast internet connection, we recommend you watch this video in 720p HD.

We’re told that the founder of S&S Precision, the inimitable “Stick” Starks, is retiring from full-time gunsmithing duties. This video is a nice tribute to Stick’s dedication to his craft for so many decades.

Permalink - Videos, Gunsmithing 1 Comment »
January 1st, 2017

6.5 Creedmoor — Velocity and Barrel Length — What to Expect

Rifleshooter.com 6.5 Creedmoor cut-down test

What do you get when you cut a 6.5 Creedmoor-chambered barrel down to just over 16 inches? A lot more velocity than you might think. Our friends at Rifleshooter.com recently did a barrel cut-down test with 6.5 Creedmoor test rifle, shortening the barrel from 27 to 16.1 inches in one-inch increments. Surprisingly, with a 142gr Sierra MK, the total velocity loss (as measured with a Magnetospeed) was just 158 FPS, an average of 14.4 FPS per inch of barrel length. With the lighter 120gr A-Max bullet, the total velocity loss was 233 FPS, or 21.8 FPS average loss per inch of barrel.

CLICK HERE to SEE All Velocity Values at All Barrel Lengths

To perform this velocity test, our friend Bill, Rifleshooter.com’s editor, built up a 6.5 Creedmoor rifle using a Remington Model 7 action, 1:8″ twist Green Mountain CM barrel, and MDT LSS Chassis, all obtained from Brownells.com.

Test Procedure
Five (5) rounds of each type of cartridge were fired at each barrel length and the velocity data was recorded with a MagnetoSpeed V3 barrel-mounted chronograph. The rifle was then cleared and the barrel was cut back one inch at a time from 27″ to just over 16″. NOTE: During this winter test, the air temperature was a very chilly 23° F. One would expect higher velocities across the board had the outside temperature been higher.

Read Full Story with All Test Results at Rifleshooter.com

The photo below shows how the barrel was cut down, inch-by-inch, using a rotary saw. The barrel was pre-scored at inch intervals. As the main purpose of the test was to measure velocity (not accuracy) the testers did not attempt to create perfect crowns.

Rifleshooter.com 6.5 Creedmoor cut-down test

6.5 Creedmoor vs. Other Mid-Sized 6.5mm Cartridges
The 6.5 Creedmoor is a very popular cartridge with the tactical and PRS crowd. This mid-size cartridge offers good ballistics, with less recoil than a .308 Winchester. There’s an excellent selection of 6.5mm bullets, and many powder choices for this cartridge. When compared to the very accurate 6.5×47 Lapua cartridge, the 6.5 Creedmoor offers similar performance with less expensive brass. For a tactical shooter who must sometimes leave brass on the ground, brass cost is a factor to consider. Here’s a selection of various 6.5 mm mid-sized cartridges. Left to right are: 6.5 Grendel, 6.5×47 Lapua, 6.5 Creedmoor with 120gr A-Max, 6.5 Creedmoor with 142gr Sierra MK, and .260 Remington.

6.5 Creedmoor Rifleshooter.com velocity barrel cut cut-down test saw blade

When asked to compare the 6.5 Creedmoor to the 6.5×47 Lapua, Rifleshooter.com’s editor stated: “If you don’t hand load, or are new to precision rifle shooting, get a 6.5 Creedmoor. If you shoot a lot, reload, have more disposable income, and like more esoteric cartridges, get a 6.5×47 Lapua. I am a big fan of the 6.5×47 Lapua. In my personal experience, the 6.5×47 Lapua seems to be slightly more accurate than the 6.5 Creedmoor. I attribute this to the quality of Lapua brass.”

Permalink Bullets, Brass, Ammo, Gunsmithing, Tactical 3 Comments »
November 23rd, 2016

Lapua Now Offers 6.5 Creedmoor Cartridge Brass

Lapua Creedmoor 6.5 Brass cartridge 1.5mm tactical case

Here’s great news for mid-size cartridge fans, and especially PRS and tactical shooters. Lapua just announced it will produce 6.5 Creedmoor cartridge brass, which should be available in the first quarter of 2017. This premium-quality brass features a small primer, and 1.5mm flash hole (as found on Lapua’s 6mmBR, 6.5×47 Lapua, and 220 Russian brass). We expect Lapua’s 6.5 Creedmoor brass will set new standards for accuracy and case life for this popular mid-sized cartridge. Of course Lapua’s new 6.5 Creedmoor brass can also be necked down and loaded in 6mm Creedmoor configuration. With the small primer pocket and proven strength of Lapua brass, we think 6.5 Creedmoor shooters will see enhanced cartridge velocities with the ability to maintain tight primer pockets even with very stout loads. And we expect accuracy to be on a par with Lapua’s excellent 6.5×47 Lapua brass. Taken together, this is an exciting product release. Here is Lapua’s official announcement:

Lapua Creedmoor 6.5 Brass cartridge 1.5mm tactical case

We are happy to announce the addition of the 6.5 Creedmoor case to the Lapua line! Despite a relatively short time on the marketplace, the 6.5 Creedmoor has made a tremendous splash in the field, rapidly becoming one of the most requested cases we hear about from shooters. Lapua’s 6.5 Creedmoor is designed to function in a short action, which is also a plus for hunters, vitally concerned with the rifle’s weight and compactness. In fact, many of the same features which make for a successful competition cartridge, translate nicely to the hunting fields as well.

For most species of mid-size game such as deer or boar, the Creedmoor will prove to be a deadly performer. And while the selection of high grade Match bullets in the 6.5 bore size is tremendous, there’s no shortage of exceptionally good hunting bullets either. The 6.5s as a group have always been known as excellent performers on game.

Lapua Creedmoor 6.5 Brass cartridge 1.5mm tactical caseMade with Lapua’s typical dedication to precision, our new 6.5 Creedmoor case has been refined just a bit, to make it an even better performer. We’ve opted for the small rifle primer, which normally produces an optimized ignition and better accuracy than large primers in mid-sized cartridges like the Creedmoor.

We’ve also incorporated our smaller-diameter flash hole (1.5mm, rather than the industry-standard 2.0mm), which has proven to provide enhanced accuracy, and is used in a number of our other accuracy-oriented cases. In this respect, the new 6.5 Creedmoor joins the ranks of our other dedicated accuracy cartridges such as the .220 Russian (6mm PPC), the 6mmBR Norma, the 6.5×47 Lapua, and the .308 Win Palma cases.

And naturally, the new 6.5 Creedmoor will be made with our well-known Passion for Precision. Strictest control over the metallurgy, the forming and drawing processes, precise annealing all performed under the watchful eyes of our production experts. For you, the handloader, that means the durability for which our cases are famous, combined with consistency and long life. Already proven in competition, we predict that the 6.5 Creedmoor will be a force to be reckoned with for many years to come.

Comment on Lapua’s new 6.5mm Creedmoor
Our British friend Laurie Holland was excited about the new 6.5 Creedmoor brass from Lapua: “With this and Peterson Cartridge on the bandwagon, plus another U.S. brass maker… the Creedmoor’s momentum is becoming impressive.” Laurie observes: “A small primer Lapua-cased 6.5mm Creedmoor is in effect a 6.5X47 Lapua ‘Improved’!” That’s a pretty interesting concept indeed. Which makes us wonder if the .260 Remington has finally been fully eclipsed. With Lapua 6.5 Creedmoor brass you can probably get very, very close to .260 Rem performance in a much more efficient case.

Permalink Bullets, Brass, Ammo, New Product, News 13 Comments »
August 3rd, 2016

Amazing 2.856″ 10-Shot Group at 1000 Yards — Potential Record

IBS 1000 yard record heavy benchrest Harry Jones Range West Virginia 6.5x47 Lapua Mike Gaizauskas
Yes, there are ten (10) shots. In the lower left (7 o’clock) of the group, two shots overlap!

Stunning 1000-Yard 10-Shot Group
IBS 1000 yard record heavy benchrest Harry Jones Range West Virginia 6.5x47 Lapua Mike GaizauskasYou’re looking at a stunning feat of rifle accuracy. That’s a sub-3″, ten-shot group shot at 1000 yards, all 10s or Xs. Measured at 2.856 inches, this group by shooter Mike Gaizauskas works out to 0.2727 MOA. Nearly quarter-MOA for ten shots at 1K! And the vertical for 7 of 10 shots is under an inch. Now that’s impressive. This was done with an IBS Heavy Class Benchrest gun, chambered for the 6.5×47 Lapua, a mid-sized cartridge originally designed for 300m competition.

Gun Specs: 6.5×47 Lapua chambering, Krieger 30″, 1:8″-twist barrel, Lapua 139 grain Scenars, Hodgdon H4350, CCI BR4 primers, Nightforce NSX scope. Smithed by Mark King, stock by Mike Gaizaukaus.

This amazing group, which establishes new IBS world records, was shot at the Harry Jones Memorial 1000-Yard Gun Club range in Fairview, West Virginia. Set in wooded, rolling hills, this range is shielded on all sides by thick stands of trees. It’s a beautiful facility, and you can see why, when conditions are right, the Harry Jones range can be about as close to shooting in a “tunnel” as you’ll ever get at 1000 yards. The Harry Jones Club in WV hosted the 2014 IBS Long-Range Nationals.

IBS 1000 yard record heavy benchrest Harry Jones Range West Virginia 6.5x47 Lapua Mike Gaizauskas

IBS 1000 yard record heavy benchrest Harry Jones Range West Virginia 6.5x47 Lapua Mike Gaizauskas

Mike’s remarkable 10-shot performance may be a Score Record as well as a group record, because all ten shots were in the 10-Ring and, under IBS rules, group size is the tie-breaker, rather than X-Count. Mike’s target was scored 100-3X, with two of the three Xs just clipping the outside of the X-Ring. Match directors reported: “On 7/24/2016, two new pending IBS 1000-yard world records were shot by Mike Gaizauskas with a 6.5X47 Lapua: 1) Heavy Gun Group (2.856″) and 2) Heavy Gun Score (100-3X). Congratulations Mike!” Here are the listed IBS records that will be broken, when this target is certified:

► Current IBS 1000-Yard Heavy Gun 10-Shot Single Group Record: 3.044″, Joel Pendergraft, 4/18/2009.

► Current IBS 1000-Yard Heavy Gun 10-Shot Single Group Score Record: 100 points, with 3.353″ group size tie-breaker, Gary Nicholson, 7/27/13.

Best 1000-Yard 10-Shot Groups Ever
This jaw-dropping 2.856″ group by Mike Gaizauskas also handily breaks the current NBRSA 1000-Yard, ten-shot Heavy Gun Record, which was 3.9912″ set by Bill Johnston on November 17, 2015. FYI: IBS and NBRSA Light Guns only shoot five-shot groups, so there is no equivalent IBS or NBRSA Light Gun 1K ten-shot record.

Only one other 10-shot, 100-score 1000-yard group was better than this in the history of rifle competition on this planet. Back in 2010, at a Williamsport match, Matt Kline shot a 2.815″ 100-4X. Depending on how Mike’s 2016 2.856″ group is finally measured, it could end up smaller than Matt’s. The difference (before final IBS verification) is only 0.041″, a mere four hundredths of an inch.

In 2014, Jim Richards fired a 10-shot Light Gun group at 1000 yards initially measured at 2.6872″. Shot under Williamsport Rules at the Deep Creek Range in Montana, that 10-shot group may be the smallest ever at 1K. However, the whole group was out in the 8 Ring, for a score of 80, not 100.

About the 6.5×57 Lapua Cartridge

To learn more about the record-setting 6.5×47 Lapua cartridge, including bullet and powder options and reloading tips, visit our comprehensive 6.5×47 Lapua Cartridge Guide.

6.5x47 Lapua Cartridge

The 6.5x47mm Lapua was developed in 2005 as a precision cartridge for 300m CISM rifle matches. Lapua (of Finland) and Swiss rifle-maker Grünig & Elmiger created this new cartridge to match the “pure accuracy” of the 6mmBR, but with even better ballistics. Following its debut as a 300m match cartridge, the 6.5×47 has proven to be a popular “jack of all trades”. Shooters have adopted this efficient, mid-sized cartridge because it offers excellent accuracy, mild recoil, good ballistics, and ample barrel life (plus it feeds well from a magazine). The 6.5×47 Lapua has won two NBRSA 600-yard Nationals. Now that this modern, mid-sized cartridge has set an all-time record for grouping precision at 1000 yards, we expect more shooters to experiment with this cartridge in the mid- and long-range benchrest disciplines.

Story Tip by Boyd Allen. We welcome reader submissions
Permalink Competition, Shooting Skills 12 Comments »
March 28th, 2016

6.5 Creedmoor — Barrel Cut-Down Velocity Tests

Rifleshooter.com 6.5 Creedmoor cut-down test

What do you get when you cut a 6.5 Creedmoor-chambered barrel down to just over 16 inches? A lot more velocity than you might think. Our friends at Rifleshooter.com recently did a barrel cut-down test with 6.5 Creedmoor test rifle, shortening the barrel from 27 to 16.1 inches in one-inch increments. Surprisingly, with a 142gr Sierra MK, the total velocity loss (as measured with a Magnetospeed) was just 158 FPS, an average of 14.4 FPS per inch of barrel length. With the lighter 120gr A-Max bullet, the total velocity loss was 233 FPS, or 21.8 FPS average loss per inch of barrel.

CLICK HERE to SEE All Velocity Values at All Barrel Lengths

To perform this velocity test, our friend Bill, Rifleshooter.com’s editor, built up a 6.5 Creedmoor rifle using a Remington Model 7 action, 1:8″ twist Green Mountain CM barrel, and MDT LSS Chassis, all obtained from Brownells.com.

Test Procedure
Five (5) rounds of each type of cartridge were fired at each barrel length and the velocity data was recorded with a MagnetoSpeed V3 barrel-mounted chronograph. The rifle was then cleared and the barrel was cut back one inch at a time from 27″ to just over 16″. NOTE: During this winter test, the air temperature was a very chilly 23° F. One would expect higher velocities across the board had the outside temperature been higher.

Read Full Story with All Test Results at Rifleshooter.com

The photo below shows how the barrel was cut down, inch-by-inch, using a rotary saw. The barrel was pre-scored at inch intervals. As the main purpose of the test was to measure velocity (not accuracy) the testers did not attempt to create perfect crowns.

Rifleshooter.com 6.5 Creedmoor cut-down test

6.5 Creedmoor vs. Other Mid-Sized 6.5mm Cartridges
The 6.5 Creedmoor is a very popular cartridge with the tactical and PRS crowd. This mid-size cartridge offers good ballistics, with less recoil than a .308 Winchester. There’s an excellent selection of 6.5mm bullets, and many powder choices for this cartridge. When compared to the very accurate 6.5×47 Lapua cartridge, the 6.5 Creedmoor offers similar performance with less expensive brass. For a tactical shooter who must sometimes leave brass on the ground, brass cost is a factor to consider. Here’s a selection of various 6.5 mm mid-sized cartridges. Left to right are: 6.5 Grendel, 6.5×47 Lapua, 6.5 Creedmoor with 120gr A-Max, 6.5 Creedmoor with 142gr Sierra MK, and .260 Remington.

6.5 Creedmoor Rifleshooter.com velocity barrel cut cut-down test saw blade

When asked to compare the 6.5 Creedmoor to the 6.5×47 Lapua, Rifleshooter.com’s editor stated: “If you don’t hand load, or are new to precision rifle shooting, get a 6.5 Creedmoor. If you shoot a lot, reload, have more disposable income, and like more esoteric cartridges, get a 6.5×47 Lapua. I am a big fan of the 6.5×47 Lapua. In my personal experience, the 6.5×47 Lapua seems to be slightly more accurate than the 6.5 Creedmoor. I attribute this to the quality of Lapua brass.”

Permalink Gunsmithing, Tactical, Tech Tip 3 Comments »
March 9th, 2016

The 6.5 Creedmoor — Profile of Popular Mid-Sized Cartridge

6.5 Creedmoor

We often get questions about the 6.5 Creedmoor Cartridge — folks ask where they can find good resources for this cartridge, which is popular with Across-The-Course, High Power, and tactical shooters. We did some searching and found that the August 2011 digital edition of Shooting Sports USA has a good article for all fans of the 6.5 Creedmoor.

6.5 Creedmoor Development of the 6.5 Creedmoor Cartridge
In the August 2011 Edition of Shooting Sports USA you’ll find a lengthy feature on the 6.5 Creedmoor cartridge. This story covers the origin of the cartridge and its performance both as a match cartridge and as a hunting round. Hornady Chief Ballistician Dave Emary explained: “the original intent of the cartridge was as an across-the-course match cartridge. We envisioned it as an off-the-shelf round that would produced the accuracy and ballistics to compete in all match disciplines right out of the box. At the same time we realized that the same characteristics would make an exceptional hunting cartridge with the right bullets.”

6.5 Creedmoor

6.5 Creedmoor Annealing6.5 Creedmoor Brass No Longer Washed After Annealing
Here’s an interesting update on Hornady 6.5 Creedmoor brass and loaded ammo. In a move to improve case quality and neck uniformity, Hornady recently changed the 6.5 Creedmoor production process, eliminating the case-washing step after annealing. So now you will see annealing coloration on 6.5 Creedmoor brass, just like on Lapua brass. Dennis DeMille of Creedmoor Sports wanted to improve the consistency/uniformity of 6.5 Creedmoor case-necks. At Dennis’ suggestion, Hornady conducted tests which showed that the “standard industry practice” of washing brass could potentially alter the necks in undesirable ways. Bottom line, unwashed annealed brass was determined to have an accuracy edge over washed brass. Looking at these results, Hornady decided to forgo the post-anneal washing process. As a result, the latest 6.5 Creedmoor brass now displays the distinctive coloration left by neck/shoulder annealing. Learn something new every day, eh?

Permalink Bullets, Brass, Ammo, Tactical 2 Comments »
January 13th, 2015

Using the Giraud Power Trimmer — Smart Video from Erik Cortina

Forum member Erik Cortina recently launched his own YouTube Channel dedicated to precision reloading and accurizing. Erik’s videos demonstrate the proper use of specialized reloading tools and provide helpful hints. Erik’s latest video is about the “mother of all brass trimmers”, the Giraud powered case trimmer. Erik says: “It you do volume reloading… this is the only trimmer to get. It not only trims to length but it also chamfers your case mouth inside and out.” In his video, Erik offers some very clever and useful tips that will help you get the most from your Giraud.

The Giraud trimmer is very precise. When set up correctly, it can trim brass with amazing consistency. In the video, Erik trims 5 pieces of brass in 15 seconds (6:32 mark). He then measures all five with precision calipers (7:00-8:08). All lengths are exact within .0005 (half a thousandth). Erik notes that the Giraud trimmer indexes off the case shoulder. As long as you have fire-formed brass with consistent base-to-shoulder dimensions, you should get very consistent trim lengths.

The secret to the system is a 3-way cutting head. This cutter can be swapped in and out in a couple minutes with wrenches provided with the kit. Erik has three different heads; one each for 6.5mm, 7mm, and .30 caliber. The video shows how to adjust the cutting heads to match caliber diameter (and to get the desired amount of inside/outside chamfer).

This is a manufacturer’s photo showing an older model.
Erik Cortina Meplat Giraud Case Trimmer YouTube Video Lapua

To trim and chamfer cases, you simply insert them nose-first into the cartridge-specific case-holder. Erick offers a smart tip — He uses a die locking ring to position the cartridge holder (3:15). This can be locked in place. Erik says die locking rings work much better than the hex-nuts provided by Giraud (with the hex-nut, one must re-set cut length each time you change case-holders.)

Erik Cortina Meplat Giraud Case Trimmer YouTube Video Lapua

The Giraud can be used in either horizontal or vertical modes. Erik prefers to have the trimmer aligned vertically, allowing him to push cases down on the trimmer head. But the trimming unit has twin sets of rubber feet, allowing horizontal or vertical orientation.

Erik Cortina Meplat Giraud Case Trimmer YouTube Video Lapua

Improved Case-Holder Made with Chamber Reamer:
For his .284 Shehane, Erik had to create his own case-holder (Giraud does not make one for that wildcat cartridge). Erik used his chamber reamer. To his surprise, Erik found that the brass was easier to trim in the custom case holder (compared to the Giraud-made spring-loaded holders). With a perfect fit, trimming and case extraction went more smoothly and the process was easier on his hands. (See 9:00-10:00). Based on Erik’s experience, you may want to create your own custom case-holder.

Trim Bullet Meplats Also
With a special bullet-holder fitting and meplat cutter head, the Giraud power trimmer can be used to trim bullet meplats. Trimming meplats can help make the Ballistic Coefficents of a batch of bullets more consistent. Uniforming meplats is also often done as a first step in the process of “tipping” bullets to improve BC.

Erik Cortina Meplat Giraud Case Trimmer YouTube Video Lapua

Giraud Power Trimmer

Permalink - Videos, Reloading, Tech Tip 8 Comments »
October 22nd, 2014

Quick Comparison of Popular 6.5mm Rifle Cartridges

6.5 Cartridge Guide Eben Brown EABco e. arthur brown 260 rem 6.5x47 6.5 creedmoor 6.5x55
Chart created with Ammoguide’s Visual Comparison Tool. Visit Ammoguide.com to learn more.

by Eben Brown, EABCO.com, (E. Arthur Brown Co. Inc.)
The current popularity of 6.5mm cartridges in the USA has been a long time in coming. I won’t go into my opinions on why it took so long to catch on. The important thing is that it finally HAS caught on and we’re now so fortunate to have a wide selection of 6.5mm cartridges to choose from!

6.5mm Grendel – Developed by Alexander Arms for the AR15 and military M4 family of rifles. The Grendel fits the dimensional and functional requirements of these rifles while delivering better lethality and downrange performance. There are now similar cartridges from other rifle companies. We chamber for the Les Baer “264 LBC-AR”. Designed for velocities of 2400-2500 fps with 123gr bullets, it shoots the 140-grainers at about 2000 fps (for comparison purposes).

6.5mm BRM – Developed by E. Arthur Brown Company to give “Big Game Performance to Small Framed Rifles” — namely our Model 97D Rifle, TC Contender, and TC Encore. Velocities of 2400-2500 fps with 140gr bullets puts it just under the original 6.5×55 Swede performance.

6.5mm x 47 Lapua – Developed by Lapua specifically for international 300m shooting competitions (with some interest in long-range benchrest as well). Case capacity, body taper, shoulder angle, and small rifle primer are all features requested by top international shooters. You can expect velocities of 2500-2600+ with 140 gr bullets.

6.5mm Creedmoor – Developed by Hornady and Creedmoor Sports, the 6.5mm Creedmoor is designed for efficiency and function. Its shape reaches high velocities while maintaining standard .308 Winchester pressures and its overall length fits well with .308 Win length magazines. You can expect velocities of 2600-2700+ fps with 140gr bullets.

.260 Remington – Developed by Remington to compete with the 6.5mmx55 Swedish Mauser that was (finally) gaining popularity in 1996. By necking down the 7mm-08 Remington to 6.5mm (.264 cal), the .260 Remington was created. It fit the same short-action [receivers] that fit .308 Win, .243 Win, 7mm-08 Rem, etc. You can expect velocities of 2600-2700 fps with 140gr bullets in the 260 .Remington.

[Editor’s Note: In the .260 Rem, try the Lapua 120gr Scenar-Ls and/or Berger 130gr VLDs for great accuracy and impressive speeds well over 2900 fps.]

6.5mm x 55 Swedish Mauser – This was the cartridge that started the 6.5mm craze in the USA. It is famous for having mild recoil, deadly lethality on even the biggest game animals, and superb accuracy potential. Original ballistics were in the 2500 fps range with 140gr bullets. Nowadays handloaders get 2600-2700+ fps.

[Editor’s Note: Tor from Scandinavia offers this bit of 6.5x55mm history: “Contrary to common belief, the 6.5×55 was not developed by Mauser, but was constructed by a joint Norwegian and Swedish military commission in 1891 and introduced as the standard military cartridge in both countries in 1894. Sweden chose to use the cartridge in a Mauser-based rifle, while Norway used the cartridge in the Krag rifles. This led to two different cartridges the 6.5×55 Krag and 6.5×55 Mauser — the only real difference being safe operating pressure.”]

6.5-284 Norma — This comes from necking the .284 Winchester down to .264 caliber. Norma standardized it for commercial ammo sales. The 6.5mm-284 was very popular for F-Class competition and High Power at 1,000 yards. However, many F-Class competitors have switched to the straight .284 Win for improved barrel life. 6.5-284 velocities run 3000-3100+ fps with 140gr bullets.

.264 Winchester Magnum – Developed by Winchester back in 1959, the .264 Win Mag never really caught on and may have delayed the ultimate acceptance of 6.5mm cartridges by US shooters (in my opinion). It missed the whole point and original advantage of 6.5 mm cartridges.

The Original 6.5mm Advantage
The special needs of long-range competition have skewed things a little. However the original advantages of 6.5mm cartridges — how deadly the 6.5mms are on game animals, how little recoil they produce, and how easy they are to shoot well — still hold true today.

6.5 Cartridge Guide Eben Brown EABco e. arthur brown 260 rem 6.5x47 6.5 creedmoor 6.5x55

Permalink - Articles, Bullets, Brass, Ammo 8 Comments »
March 21st, 2014

6.5×47 Lapua Rifles Shine in Oklahoma PRS Match

6.5x47 L Lapua .308 WinMid-sized 6.5mm cartridges proved themselves at the recent Shoot for the Green match in northwest Oklahoma. Four out of the top five shooters ran a rifle chambered for the 6.5×47 Lapua, with the fifth shooting the slightly larger 6.5 Creedmoor cartridge. 53 shooters from as far away as California showed up to test their skills in the stiff March winds in NW Oklahoma. The course of fire was challenging, with improvised field shooting positions and targets set as far as 1300 yards out. And there were “Troop” stages that competitors have come to expect in Oklahoma. Match winner Rick Reeves stated, “I enjoyed the troop stages more than anything else, even though I didn’t shoot them the best.”
Precision Rifle Seris

Steve Elmenhorst shooting a Troop Stage.
PRC Shoot for Green Oklahoma

Rich Emmons, who steered his 6.5x47L to fourth place, has written a match report for PrecisionRifleSeries.com. Day One saw temps around 70 degrees with only light, switchy winds. But Day Two was brutal, Emmons reports: “On Sunday… 40-50 mph winds hit NW Oklahoma hard and most competitors were woken up. To say that shooting in the 15-30 mph winds with temps in the high 30s [was really tough] is an understatement. All competitors struggled a bit and scores were understandably lower on Day Two. Conditions were brutal and both the ROs and the competitors deserve a gold star for toughing it out and finishing the match.” CLICK HERE for Complete Match Results

Top 5 Shooters Equipment List

Rick Reeves
6.5×47 Lapua
, 140 Berger Hybrid, Surgeon Action, McMillan A-5 Stock, Bartlein Barrel, Rem trigger, Vortex Razor scope, Built by DMFJ, Tab Sling & bag, Harris Bipod, AAC Suppressor.

Adam Roberts
6.5 Creedmoor
, Desert Tech Armory (DTA), Benchmark Barrel, 123 Lapua Scenar, H4350 powder, Silencer Tech Suppressor, S&B PMII scope w/ H2CMR reticle.

Justin Shireman
6.5×47 Lapua
, Surgeon/ Parry Custom Gun, Silencer Tech Suppresor, Benchmark Barrel, McMillan Stock, Harris Bipod, Swarovski binoculars.

Rich Emmons
6.5×47 Lapua
, Surgeon Rifle, Bartlein Barrel, Mcmillan Stock, Berger 140 Hybrids, Harris Bipod, S&B PM II MSR, Vortex Binoculars, MGM Switchview, 5.11 gear, JEC brake.

John Sommers
6.5×47 Lapua
, Surgeon Rifle, Bartlein Barrel, Mcmillan Stock, Lapua 139, Harris Bipod, S&B PM II MSR, Vortex Binoculars, AAC Suppressor.

Permalink Competition, Tactical No Comments »
October 20th, 2013

22-6.5×47 vs. 22-250 Standard and Improved

In our Shooters’ Forum, there was an interesting discussion of the 6.5×47 Lapua case necked down to .22 caliber. Forum members discuss the pros and cons of a “22×47 Lapua” wildcat versus the classic 22-250 or a 22-250 AI.

Forum member SkeetLee asked: “I am considering a 22x47L or a 22-250 AI. I like the Lapua brass and I have heard some good accuracy reports from the 6.5×47 Lapua case whether it be chambered as a 6.5mm or necked down to 6mm or even 22 caliber. I don’t know too much about the 22-250 AI except that it’s pretty popular and it’s fast…. I don’t see much offered for reloading dies for the 22x47L. I know I can use a bushing die to neck size but what about full length sizing and seating dies? Does it make better sense to just go with the 22-250 AI?”

22-250 Ackley Improved

Respected Savage Gunsmith Fred Moreo, posting as “Medicineman”, offered this interesting advice: “Why not get the best of both worlds? I built a 22×47 Improved for my coyote gun. It is easy as just running the 22-250 AI reamer in .050″ short, and trimming the same amount off the dies. It is actually a little more efficient than the 22-250 AI. My best load for coyotes is a 65gr Sierra GameKing pushed by 39.4 grains of H4350 for 3750 fps. The Lapua brass will take more pressure than any 22-250 brass available, and last four times as long. The 65 Sierra GKs hit like a sledge-hammer, and were originally designed for shooting red kangaroos — they’re pretty tough from what I hear.”

22-250 Ackley ImprovedForum member Vic C. from Oklahoma has experience with the 22-250 AI, and has recently built a 22×47 Lapua. Comparing the 22-250 AI with the 22x47L, Vic tells us: “Accuracy should be very good from either caliber in custom barrels.” Vic continues: “I have two 22-250 AI barrels and a new 22X47 Lapua barrel that I’ve just started load testing. The 22X47 Lapua case capacity is slightly more than a standard 22-250 Rem and less than the 22-250 AI (fireformed). The advantage of the 22X47 L, of course, is the availability of Lapua brass. I have Remington, Winchester and Federal brass for the 22-250 AIs and prefer Remington which I’ve found to be quite good, but not up to Lapua standards of course.

Recently I’ve been shooting some reformed Norma 6XC brass in the 22-250 AI and find it to be of excellent quality. [Editor’s Note: Lapua also now makes 22-250 brass though it is currently hard to find.] Dies for the 22-250 AI are much easier to come by than for the 22X47 Lapua. For a coyote rifle, if you’re not saving the hides, I think either caliber would be a great choice. For a PD rifle I would go with the 22-250 AI because of much less work prepping the hundreds of cases needed.”

Permalink Hunting/Varminting, Reloading 5 Comments »