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April 7th, 2024

Sunday Gunday: 6-6.5×47 Lapua BAT-Action LR Varmint Rifle

6mm 6.5x47 Lapua 6-6.5x47 varmint rifle mcmillan BAT action 6mmAI

Soon after Lapua released the 6.5×47 cartridge, wildcatters recognized the potential of a necked-down 6mm version of the case. The 6-6.5×47 has emerged as a great, do-it-all cartridge that performs well in High Power competition, 600- and 1000-yard benchrest, and PRS tactical matches. But the 6-6.5×47 is not just for paper-punching. An efficient cartridge with great inherent accuracy, the 6-6.5×47 can be an excellent, flat-shooting, long-range varmint round. Here we feature Stan Stewart’s BAT-actioned 6-6.5×47 varminter. Fitted with a Krieger 1:10″ barrel, Stan’s rifle excels with a wide variety of varmint bullets. Whether driving 70-grainers at 3700 fps, or pushing the Berger 88gr High-BC FB bullet at 3400 fps, this 6-6.5×47 delivers half-MOA (or better) accuracy, in a well-balanced, easy-handling rifle.

The 6-6.5×47 for Precision Long-Range Varminting

6mm 6.5x47 Lapua 6-6.5x47 varmint rifle mcmillan BAT action 6mmAI
The rifle carries a 12-42x56mm Nightforce NSX in Nightforce rings “hand-lapped for optimal fit/alignment”.

‘Seller’s Remorse’ Spurs 6mm Project
Report by Stan Stewart

After selling my 6mm Remington Ackley Improved a couple of years ago and wishing I hadn’t, I begun to think about a new custom rifle for work on Prairie Dog towns and New York wood chucks at 600+ yards. I have a .223 AR and 22-250 for medium ranges but I missed my 6mm AI for long-range work so I started asking questions.

The 22-250 is a fine chambering, but it is hard on barrels, and I think the 6mms may have an accuracy edge out past 400 yards. Also, shooters today enjoy a vast collection of really great 6mm bullets. Barrel life and bullet options were two main reasons I decided to build a 6mm rather than another .224-caliber gun. But the question remained… what 6mm chambering to choose?

I started doing serious research on the 6-6.5×47. I received a lot of good advice from AccurateShooter.com and other websites on the pros and cons. I also talked to gunsmiths — quite a few recommended the new cartridge as well. Some of the cartridge attributes I liked was the small rifle primer, enough case capacity to efficiently reach 3700 fps with a 70gr bullet and 3400 fps with an 85-grainer without being terribly over-bore. Most important was the 6-6.5×47’s reputation for inherent accuracy without being finicky like my 6mm AI. So, having chosen my cartridge, I started asking for gunsmith recommendations. Again the folks on the AccurateShooter.com Forum were very helpful. After many conversations I settled on Dave Bruno in Dayton, Pennsylvania. He was a good choice.

Putting Together the New Rig with Premium Components
From the get-go, I knew I wanted a BAT action and Krieger barrel. BAT Machine and Krieger Barrels enjoy a great reputation in the shooting industry. BATs are beautifully-machined, smooth, and strong. Krieger cut-rifled barrels are known for dependable accuracy and long barrel life. While many 6-6.5×47 shooters choose an 8-twist barrel to shoot the 100-108gr bullets, I would be using smaller, varmint-weight bullets, so I selected a 1:10″ twist Krieger. This would allow me to shoot bullets from 60 grains up to 90 grains. Dave chambered the barrel with a .269″ neck and fluted the barrel to save weight. I also had Dave install a Vais muzzle brake. Dave fitted the BAT with a 2 oz. Jewell trigger, mounted a +20 MOA scope rail, then pillar-bedded the BAT into a McMillan Hunter-Class-style fiberglass stock.

6mm 6.5x47 Lapua 6-6.5x47 varmint rifle mcmillan BAT action 6mmAI

Load Development for Varminting

I had selected a few powders and bullets recommended by other 6-6.5×47 shooters and started by seating all the bullets .005″ off the lands. The powders I selected were Varget, Vihtavuori N-550, and Reloder 15.

6mm 6.5x47 Lapua 6-6.5x47 varmint rifle mcmillan BAT action 6mmAI

I was very pleased with the 88gr Bergers. In initial testing, they grouped well and I was able to drive them to 3400 fps easily. As I wanted a gun for long-range varmint work, I was hoping the 1:10″-twist barrel would provide enough stability for the heavier weight bullets. It did — the 10-twist worked great! I was able to shoot the lighter weight bullets and the 88s were superb. With a BC of 0.391, leaving the barrel at 3400, these bullets were still traveling at 2600 fps at 600 yards!

6mm 6.5x47 Lapua 6-6.5x47 varmint rifle mcmillan Berger BAT Action

I did a lot of testing, recording group sizes for a variety of different bullets (see below) and powders. With group size/velocity data in a spreadsheet I was able to “crunch the numbers” and choose my preferred loads. The data drew a clear picture of what the rifle shot best. Here is a chart showing comparative group sizes, arranged by bullet type. On the last three lines, powders are listed by average for all bullets.

Choosing a Varmint Bullet for Precision and Performance

Stan Stewart didn’t just grab a box of bullets off the shelf and head off to the varmint fields. He researched a broad selection of varmint bullets suitable for a 10-twist barrel. He did extensive group testing with a wide range of bullets from 70 grains to 90 grains. Shown below is a “line-up” of some of the bullets Stan tested in his gun.

6-6.5x47 Varmint Rifle

6-6.5x47 Lapua VarminterStan logged all load data, velocities, and group sizes in a very detailed Excel spreadsheet. Stan’s testing revealed that the light bullets delivered superb accuracy, but they were less than ideal for long shots out past 400 yards. Stan tried the Bart’s 70, Sierra 70 BlitzKing, Berger 80, Hornady 87, Berger 88 Lo-Drag, and Berger 90. Among these choices the Berger 88-grainer was the clear winner for long range (see test targets at right). With an 0.391 BC, this unique “Match Varmint High-BC Flat-Base” offers good ballistics, and high velocities. Stan’s average group size with the 88s was 0.40 inches, bettered only by the Bart’s 70-grainer. Stan’s 6-6.5×47 can launch the Berger 88s at a healthy 3400 fps, providing a highly accurate, flat-shooting solution.

Initially, Stan had high hopes for the Hornady 87-grain V-Max. Stan told us “I also tried the 87 gr Hornady but they didn’t perform to expectations. I am a big Hornady fan but these bullets varied in weight and just didn’t want to group well.” [Editor’s Note: While many varmint shooters have had great luck with the Hornady 87gr V-Max, this is not the first report we’ve received of disappointing results with these bullets. In the Editor’s own 8-twist 6BR, the 87s never shot as well as Bergers, Lapuas, or Sierras in the 85-90 grain range.]

6-6.5x47 Lapua Varmint rifleFinal Thoughts on the 6-6.5×47 Lapua
I have owned three rifles chambered in 22-250 and will always own a rifle in this caliber because it is inherently accurate and drives a 50gr bullet at 3800 fps. No question the 22-250 can be deadly out to 500 yards. However, I’ve found that shooting past 400 yards with the light bullets is difficult if there is any wind at all. That’s why I liked my 6mm AI for those longer shots and why I decided on the 6-6.5×47 Lapua. I couldn’t be happier with my choice. The only thing that could make it better is if Lapua would produce the 6-6.5×47 as an “official” factory 6mm cartridge with 6mm necks right out of the box. But overall, I am very happy with the cartridge, and I thank Dave Bruno for producing a superbly accurate varmint rifle.

CLICK HERE for FULL Story with 6-6.5×47 Load DATA »

Permalink Bullets, Brass, Ammo, Gear Review, Hunting/Varminting, Reloading No Comments »
December 21st, 2023

Cartridge Comparison Guide Has Specs on 250+ Cartridges

Cartridge Comparison Guide

Cartridge Comparison GuideThe Cartridge Comparison Guide is a remarkably comprehensive 340-page, spiral-bound book. Covering over 250 cartridges, the Second Edition of the Cartridge Comparison Guide is the product of many years of labor by Andrew Chamberlain, a Utah-based hunter. Andrew says his Guide “compares every factory available cartridge from the 17 calibers up to the 50 caliber cartridges”. (Sorry, most wildcat cartridges are not covered.) Chamberlain’s Guide also compiles cartridge data from major ammunition manufacturers such as Barnes, Federal, Hornady, Norma, Nosler, Remington, Sierra, Swift, Weatherby, and Winchester. It shows the optimal velocity achieved for each bullet weight and calculates bullet energy, recoil, and powder efficiency. Large color photos illustrate handgun and rifle cartridges.

The Cartridge Comparison Guide provides data for thousands of cartridge/bullet/velocity combos. Quick reference sheets and ballistics charts cover Trajectory, Velocity, and Energy out to 500 yards. The Cartridge Comparison Guide also offers a firearms lexicon, plus Appendices covering Cartridge Selection for Game Animals, Bullet Selection/Design, Bullet Expansion, and Wound Channel Characteristics.

New Content in Second Edition of Cartridge Comparison Guide
The Cartridge Comparison Guide (Second Edition) costs $39.99 plus shipping and tax. CLICK HERE to visit the Online Store where you can order the 340-page book. Here’s what’s new in the Second Edition:

  • Addition of Shotgun Ammunition (Both Slug and Shot loads).
  • Momentum Calculation for all Rifle, Shotgun and Handgun loads.
  • Integration of Shotgun Slug Ammunition with Center Fire Rifle Data Tables.
  • Factory Load Summary Added (Shows manufacturers and loads produced).
  • One factory load and one hand load for every bullet weight available in each cartridge.
  • Over 90 pages of additional ballistics content (roughly 35% more than in First Edition).

Cartridge Comparison Guide

Great Resource for Hunters
One of Chamberlain’s main goals in creating the Cartridge Comparison Guide was to help hunters select the right cartridge for the job: “This started as a personal project to gather information on the more popular cartridges commonly used for hunting. I wanted to find the best all-around performing cartridge and rifle that a guy on a budget could shoot. I began comparing cartridge performance, versatility, bullet selection, powder efficiency, recoil generation vs. energy produced, standing ballistic data for different environments….”

Giant Cartridge Poster for Computer Wallpaper (1665×1080 pixels)
Here’s a great illustration of hundreds of cartridges and shotshell types. For dedicated reloaders, this would work great as desktop “wallpaper” for your computer. CLICK HERE for full-size image.

cartridge poster

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November 22nd, 2023

6.5 Grendel Load Data from Sierra Bullets

6.5 Grendel load data Sierra Bullets

CLICK HERE for Sierra Bullets 6.5 Grendel LOAD DATA PDF »

Sierra Bullets has released load data for the 6.5 Grendel, a popular cartridge that works equally well in bolt guns and AR15-platform gas guns. Sierra published comprehensive 6.5 Grendel load data, covering 19 powders and eight (8) different bullets from 85 to 130 grains. NOTE: Hornady-brand brass (see below) was used for Sierra’s 6.5 Grendel tests, not the stronger Lapua 6.5 Grendel brass. Hand-loaders using Lapua 6.5 Grendel brass may need to adjust their loads. Also Winchester WSR primers were used. We imagine most precision hand-loaders will prefer CCI or Federal primers.

Sierra Bullets Tested for 6.5 Grendel Load Data
85gr HP (#1700)
100gr HP (#1710)
107gr HPBT (#1715)
120gr Spitzer (#1720)
120gr HPBT (#1725)
123gr HPBT (#1727)
130gr HPBT (#1728)
130gr TMK (# 7430)

In developing its 6.5 Grendel load data, Sierra tested a very wide selection of propellants, 19 in all. For the 85gr to 100gr varmint bullets, modern powders such as XMR 2230, Power Pro Varmint, and Ramshot TAC offered the best velocity in the 24″ test barrel. For the heavier 120gr to 130gr match bullets, Sierra tested a selection of powders. Highest velocities came with Power Pro Varmint and TAC. If you’re looking for best accuracy, consider the slower burn-rate powders such as IMR 8208 XBR and Varget — but you’ll sacrifice some speed. Overall, Sierra’s latest 6.5 Grendel load data is an excellent addition to the 6.5 Grendel knowledge base. Thanks Sierra!

Here are Sierra’s 6.5 Grendel Load Data Charts for Sierra’s 123gr HPBT, 130gr HPBT, and 130gr TMK. There are a five other tables for lighter-weight Sierra bullets.

6.5 Grendel load data Sierra Bullets

6.5 Grendel load data Sierra Bullets

6.5 Grendel load data Sierra Bullets

History of the 6.5 Grendel Cartridge
The 6.5 Grendel originated as a 6mm PPC necked up to 6.5 mm. After Alexander Arms relinquished the “6.5 Grendel” Trademark, the 6.5 Grendel was standardized as an official SAAMI cartridge. It has become popular with target shooters and hunters alike because it is accurate, efficient, and offers modest recoil. Good for small to medium game, the 6.5 Grendel is available in lightweight hunting rifles, such as the Howa Mini Action Rifle. And the 6.5 Grendel is one of the most accurate cartridges suitable for modern AR-15 platform rifles.

6.5 Grendel Saami Hornady Brass

CLICK HERE for 6.5 Grendel Cartridge History (Wikipedia entry).

Sierra Bullets Load Data 6mm Creedmoor reloading tips

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September 9th, 2023

Access Reliable Load INFO at Hodgdon Reloading Data Center

Hodgdon Reloading data Center hand loading powder

Hodgdon Reloading data Center hand loading powderHodgdon Reloading Data Center
Looking for a good load for a new rifle? Or perhaps you want to try a new powder and bullet combo for an existing rig. One of the best places to start for load data is Hodgdon’s online Reloading Data Center for pistol, rifle, and shotgun reloaders. Check out the Reloading Data Center at www.HodgdonReloading.com.

In the Data Center, you’ll find thousands of load recipes for pistol, rifle, and shotgun. Rifle shooters will find dozens of loads for their favorite Hodgdon, IMR, Accurate, Ramshot, and Winchester powders.

Benchrest, F-Class, Silhouette, ELR, and PRS/NRL competitors will find ultra-accurate loads for H4198, H4895, Varget, H4350, H4831sc, IMR 8208 XBR and other popular propellants. Hodgdon’s Reloading Center is “mobile-friendly” so it works well with smartphones and tables. Navigation is easy, and you can set the search criteria easily choosing your favorite powder or bullets. After choosing a cartridge, you can pre-select specific bullet weights and powder types. That quickly delivers just the information you want and need. You won’t have to scroll through scores of entries for bullets or powders you don’t use.

Hodgdon Reloading data Center hand loading powder
NOTE: This shows results for two bullet weights and two powder choices. With more powders and bullets selected you will get more results. The “BUY NOW” buttons link to the Hodgdon webstore.

Reloading Center is Smartphone-Friendly
Mobile users will notice that the current Hodgdon Reloading Center is “user-friendly” for smart-phone and tablet users. Controls have been optimized for touch-screens, and buttons are large and easy to use.

How to Get Started with Handloading

Getting started in Reloading? Ultimate Reloader offers a helpful introductory video that covers the basics. In addition, a recent Ultimate Reloader article reviews the types of reloading presses, plus the other gear you’ll need, from dies to powder dispensers.

Permalink Bullets, Brass, Ammo, Reloading, Tech Tip No Comments »
January 8th, 2023

Get Reliable Loads at Hodgdon Reloading Data Center

Hodgdon Reloading data Center hand loading powder

Hodgdon Reloading data Center hand loading powderLooking for a good load for a new rifle? Or perhaps you want to try a new powder and bullet combo for an existing rig. One of the best places to start for load data is Hodgdon’s online Reloading Data Center for pistol, rifle, and shotgun reloaders. Check out the Reloading Data Center at www.HodgdonReloading.com.

In the Data Center, you’ll find thousands of load recipes for pistol, rifle, and shotgun. Rifle shooters will find dozens of loads for their favorite Hodgdon, IMR, and Winchester powders such as H4198, H4895, Varget, H4350, and IMR 8208 XBR. And Hodgdon’s Reloading Center is “mobile-friendly” so it works well with smartphones and tables. Navigation is easy, and you can set the search criteria easily choosing your favorite powder or bullets. After choosing a cartridge, you can pre-select specific bullet weights and powder types. That quickly delivers just the information you want and need. You won’t have to scroll through scores of entries for bullets or powders you don’t use.

Hodgdon Reloading data Center hand loading powder
NOTE: This shows results for two bullet weights and two powder choices. With more powders and bullets selected you will get more results. The “BUY NOW” buttons link to the Hodgdon webstore.

Reloading Center is Smartphone-Friendly
Mobile users will notice that the current Hodgdon Reloading Center is “user-friendly” for smart-phone and tablet users. Controls have been optimized for touch-screens, and buttons are large and easy to use.

How to Get Started with Handloading

Getting started in Reloading? Ultimate Reloader offers a helpful introductory video that covers the basics. In addition, a recent Ultimate Reloader article reviews the types of reloading presses, plus the other gear you’ll need, from dies to powder dispensers.

Permalink - Videos, Bullets, Brass, Ammo, Reloading No Comments »
August 6th, 2021

Get Reliable Load INFO at Hodgdon Reloading Data Center

Hodgdon Reloading data Center hand loading powder

Hodgdon Reloading data Center hand loading powderLooking for a good load for a new rifle? Or perhaps you want to try a new powder and bullet combo for an existing rig. One of the best places to start for load data is Hodgdon’s online Reloading Data Center for pistol, rifle, and shotgun reloaders. Check out the Reloading Data Center at www.HodgdonReloading.com.

In the Data Center, you’ll find thousands of load recipes for pistol, rifle, and shotgun. Rifle shooters will find dozens of loads for their favorite Hodgdon, IMR, and Winchester powders such as H4198, H4895, Varget, H4350, and IMR 8208 XBR. And Hodgdon’s Reloading Center is “mobile-friendly” so it works well with smartphones and tables. Navigation is easy, and you can set the search criteria easily choosing your favorite powder or bullets. After choosing a cartridge, you can pre-select specific bullet weights and powder types. That quickly delivers just the information you want and need. You won’t have to scroll through scores of entries for bullets or powders you don’t use.

Hodgdon Reloading data Center hand loading powder
NOTE: This shows results for two bullet weights and two powder choices. With more powders and bullets selected you will get more results. The “BUY NOW” buttons link to the Hodgdon webstore.

Reloading Center is Smartphone-Friendly
Mobile users will notice that the current Hodgdon Reloading Center is “user-friendly” for smart-phone and tablet users. Controls have been optimized for touch-screens, and buttons are large and easy to use.

How to Get Started with Handloading

Getting started in Reloading? Ultimate Reloader offers a helpful introductory video that covers the basics. In addition, a recent Ultimate Reloader article reviews the types of reloading presses, plus the other gear you’ll need, from dies to powder dispensers.

Permalink - Videos, Bullets, Brass, Ammo, Reloading No Comments »
November 21st, 2020

Cartridge Comparison Guide Covers 250+ Cartridges

Cartridge Comparison Guide

Cartridge Comparison GuideThe Cartridge Comparison Guide is a remarkably comprehensive 340-page, spiral-bound book. Covering over 250 cartridges, the Second Edition of the Cartridge Comparison Guide is the product of many years of labor by Andrew Chamberlain, a Utah-based hunter. Andrew says his Guide “compares every factory available cartridge from the 17 calibers up to the 50 caliber cartridges”. (Sorry, most wildcat cartridges are not covered.) Chamberlain’s Guide also compiles cartridge data from major ammunition manufacturers such as Barnes, Federal, Hornady, Norma, Nosler, Remington, Sierra, Swift, Weatherby, and Winchester. It shows the optimal velocity achieved for each bullet weight and calculates bullet energy, recoil, and powder efficiency. Large color photos illustrate handgun and rifle cartridges.

The Cartridge Comparison Guide provides data for thousands of cartridge/bullet/velocity combos. Quick reference sheets and ballistics charts cover Trajectory, Velocity, and Energy out to 500 yards. The Cartridge Comparison Guide also offers a firearms lexicon, plus Appendices covering Cartridge Selection for Game Animals, Bullet Selection/Design, Bullet Expansion, and Wound Channel Characteristics.

New Content in Second Edition of Cartridge Comparison Guide
The Cartridge Comparison Guide (Second Edition) costs $29.99 plus shipping and tax. CLICK HERE to visit the Online Store where you can order the 340-page book. Here’s what’s new in the Second Edition:

  • Addition of Shotgun Ammunition (Both Slug and Shot loads).
  • Momentum Calculation for all Rifle, Shotgun and Handgun loads.
  • Integration of Shotgun Slug Ammunition with Center Fire Rifle Data Tables.
  • Factory Load Summary Added (Shows manufacturers and loads produced).
  • One factory load and one hand load for every bullet weight available in each cartridge.
  • Over 90 pages of additional ballistics content (roughly 35% more than in First Edition).

Cartridge Comparison Guide

Great Resource for Hunters
One of Chamberlain’s main goals in creating the Cartridge Comparison Guide was to help hunters select the right cartridge for the job: “This started as a personal project to gather information on the more popular cartridges commonly used for hunting. I wanted to find the best all-around performing cartridge and rifle that a guy on a budget could shoot. I began comparing cartridge performance, versatility, bullet selection, powder efficiency, recoil generation vs. energy produced, standing ballistic data for different environments….”

Black Rifle Cartridge Comparison Guide

The Black Rifle Cartridge Comparison Guide (CCG) was created for semi-auto AR-platform and Modern Sporting Rifle users. The Black Rifle CCG covers virtually all popular rifle, shotgun, and handgun cartridge types used with magazine-fed, semi-automatic black rifles or AR “pistols”. There is information for 50 unique rifle cartridges plus shotgun and handgun cartridges. The book provides ballistics data for all these cartridges via easy-to-use data tables. The tables cover factory ammunition and handloaded cartridges, included the newer .224 Valkyrie.

black rifle cartridge guide book

The data tables compare standardized rifle and handgun cartridges from .17 caliber to up to .50 caliber. The book also provides data for 20-, 16-, and 12-gauge Shotgun cartridges. A handy summary table identifies each rifle cartridge presented and notes if it can be fired from a factory available MSR platform, a semi-custom platform/upper, as well as a semi-custom barrel. This 275-page, spiral-bound book is on sale now for $21.99.

Giant Cartridge Poster for Computer Wallpaper (1665×1080 pixels)
Here’s a great illustration of hundreds of cartridges and shotshell types. For dedicated reloaders, this would work great as desktop “wallpaper” for your computer. CLICK HERE for full-size image.

cartridge poster

Permalink Bullets, Brass, Ammo, Hunting/Varminting, Tech Tip No Comments »
November 12th, 2020

Variances in Load Data — Why Load Manuals Don’t Always Agree

load manual sierra reloading hornady data

Written by Sierra Bullets Ballistic Technician Duane Siercks
One of the first things new reloaders notice is that load data varies between reloading manuals. The Sierra Bullets Technicians frequently get inquiries asking us to explain why the load data appears to be inconsistent. This article explains five key factors that can influence published load data.

Example of load data variances for two 168 grain bullets:

Sierra Reloading Manual Hornady Load Reloading

Here are five reasons why the load data varies:

The Bullet
Basically, the similarities in the .30 caliber 168 grain Match bullets (for example) end with weight and diameter. The bullets likely have dimensional differences such as bearing surface length. Bearing surface has a large effect on pressure and velocity. There are also differences in boat tail, flat base, ogive and over-all lengths, which each help determine the cartridge over-all-length (COAL). With different COAL’s, we can expect changes in pressure and velocity also. In some calibers there are differences in bullet diameter with different bullet manufacturers.

It is also worth noting that bullet manufacturers do not all use the same copper alloy for their jackets. This produces more or less friction that results in load pressures and velocities. The solid copper bullets also vary quite a bit in comparison to a lead core and copper jacketed bullet.

The Gun
Each gun is unique, even if you are using the same make, model, and caliber. Special consideration should be used to consider that not all firearm chambers are the same either, creating more variables that need consideration. There can be drastic differences in the throat length. This controls the amount of “jump” that a bullet experiences when the cartridge is fired.

The Powder
Within normal manufacturing tolerances, you can see some variation in a given powders burn rate between different lots of the same powder. So naturally when two different Manuals are produced, it would be doubtful that the same lots would be tested.

The Cartridge Cases
New cases are almost always near minimum specs in dimension. A load fired in a new case would likely have slightly more pressure that when fired in a re-sized case. This would certainly be true if we were loading into fire-formed cases that have had minimal re-sizing done. Fired cases that are full length resized most of the time be slightly larger than the new unfired cases. This gives you differences in case capacity. The same powder charge placed within a new case and a full length resized case will produce different pressure levels and probably different velocities.

Conditions
Temperature can cause pressure increases or decreases. Hot temperatures tend to cause pressures to increase, while cold temperatures will usually do the opposite. Humidity and altitude can impact pressures and velocities likewise.

Conclusion
As you can see, an amazing number of variables effect any load combination. With the differences in the manuals, you’re just seeing firsthand examples of what took place when the data was collected with that particular set of components and firearm. Think of a reloading manual as a report. In essence, a reloading manual says, “We tried this particular component combination, and these are the results we obtained.”

Remember that you may or may not reach the same maximum load safely. There is no “one load fits all bullets.” The minimum load data offers a safe place to start. The maximum load data listed should always be regarded as a safety guideline and not necessarily a goal! Your gun should shoot accurately without breaching the maximum load data. The best advice is: always start low and work your load up!

If you have questions about variances in load data or other reloading questions, please call our ballistic technicians at 1-800-223-8799 or send us an email at sierra [at] sierrabullets.com.

Sierra Bullets Blog reloading information

Permalink - Articles, Reloading, Tech Tip 2 Comments »
September 30th, 2020

Cartridges of the World (16th Edition) Covers 1500+ Types

Cartridges of World Barnes 15th Edition

Cartridges of the World (16th Edition), belongs in every serious gun guy’s library. This massive 688-page reference contains illustrations and load data for over 1500 cartridge types. If you shoot a wide variety of cartridges, or are a cartridge collector, this book is a “must-have” resource. The latest edition (release date 7/23/2019) includes 50 new cartridge types and 1500+ photos. This print version can be ordered for $26.49 at Amazon.com (plus shipping and tax), while a Kindle eBook version costs $14.99.

Updated 16th Edition with Feature Articles
The 16th Edition of Cartridges of the World includes cartridge specs, plus tech articles on Cartridge identification, SAAMI guidelines, wildcatting, and new cartridge design trends. Cartridges of the World, the most complete cartridge reference guide in print, now includes a lengthy full-color section with feature articles such as 7mm Rem Magnum, .44 Special History, and “P.O. Ackley’s Best Improved Cartridges”.

Cartridges of World Barnes 15th Edition

Cartridges of World Barnes 15th Edition

Cartridges of World Barnes 15th Edition

Cartridges of World Barnes 15th Edition

Cartridges of the World 16th Ed. CHAPTERS:
Chapter 1: Current American Sporting Cartridges
Chapter 2: Obsolete American Rifle Cartridges
Chapter 3: Wildcat Cartridges
Chapter 4: Proprietary Cartridges
Chapter 5: Handgun Cartridges of the World
Chapter 6: Military Rifle Cartridges of the World
Chapter 7: British Sporting Rifle Cartridges
Chapter 8: European Sporting Rifle Cartridges
Chapter 9: American Rimfire Cartridges
Chapter 10: Shotgun Shells
Chapter 11: U.S. Military Ammunition
Chapter 12: Cartridge ID by Measurement

Cartridges of the World by author Frank C. Barnes was first published in 1965. The 16th Edition is edited by W. Todd Woodard, Editor of Gun Tests magazine and author of several firearms reference books. Frank Barnes (1918-1992) began collecting information on handgun cartridges at the early age of 12, thanks to his father, a police officer. Frank Barnes was an innovative cartridge designer, who invented the original 308 x 1.5″ Barnes, predecessor of the 30BR case.

Before Frank began a law enforcement career, he was a college professor. Frank was also a pilot, and a race-car driver. Learn more about Cartridges of the World (15th Ed.) at www.gundigest.com.

Permalink Bullets, Brass, Ammo, New Product, Reloading No Comments »
September 23rd, 2020

Get Hodgdon and IMR Loads from Reloading Data Center

Hodgdon Reloading data Center hand loading powder

Hodgdon Reloading data Center hand loading powderLooking for a good load for a new rifle? Or perhaps you want to try a new powder and bullet combo for an existing rig. One of the best places to start for load data is Hodgdon’s online Reloading Data Center for pistol, rifle, and shotgun reloaders. Check out the Reloading Data Center at www.HodgdonReloading.com.

In the Data Center, you’ll find thousands of load recipes for pistol, rifle, and shotgun. Rifle shooters will find dozens of loads for their favorite Hodgdon, IMR, and Winchester powders such as H4198, H4895, Varget, H4350, and IMR 8208 XBR. And Hodgdon’s Reloading Center is “mobile-friendly” so it works well with smartphones and tables. Navigation is easy, and you can set the search criteria easily choosing your favorite powder or bullets. After choosing a cartridge, you can pre-select specific bullet weights and powder types. That quickly delivers just the information you want and need. You won’t have to scroll through scores of entries for bullets or powders you don’t use.

Hodgdon Reloading data Center hand loading powder

Mobile users will notice that the current Hodgdon Reloading Center is much more “user-friendly” for smart-phone and tablet users. Controls have been optimized for touch-screens, and buttons are large and easy to use. Likewise the results are displayed in a large, easy-to read format.

How to Get Started with Handloading

Getting started in Reloading? Ultimate Reloader offers a helpful introductory video that covers the basics. In addition, a recent Ultimate Reloader article reviews the types of reloading presses, plus the other gear you’ll need, from dies to powder dispensers.

Permalink - Videos, Bullets, Brass, Ammo, Reloading 4 Comments »
April 6th, 2019

Primer Comparison Testing with 6 BRA at 500 Yards

primer 500 yard testing node vertical H4895 BRA

Here is a very interesting test for the 6 BRA (6mmBR Ackley) cartridge. Forum member James Phillips, a talented long-range benchrest shooter, tested SIX different primer types from three different manufacturers. To help determine vertical dispersion, James set his target out at 500 yards. He then proceeded to shoot 4-shot groups, in order, with each primer type. Velocities were recorded with a chrono. The photo above shows the results. James says: “I’ll retest the best two for accuracy and consistency with 10 shots each”. CLICK HERE for full-screen target photo.

Wheeler 6BR 6mmBR Ackley Improved James Phillips

As you can see, ALL the groups are pretty impressive. The smallest groups, 1.253″, was shot with CCI 400 primers. Next best (and very close) was CCI BR4, at 1.275″ for four shots. The “flat line” winner was the Remington 7.5, at upper left. There was almost no vertical. If you are intrigued by this interesting primer test, you can ask join the discussion in this Primer Test FORUM THREAD.

Primer Brand Group Size Velocity Extreme Spread Std Deviation
Remington 7.5 1.985″ 4 shot 2955 FPS 8 FPS 4.0 FPS
Federal 205M 2.200″ 4 shot 2951 FPS 11 FPS 4.8 FPS
Sellier Bellot SR 1.673″ 4 shot 2950 FPS 14 FPS 5.9 FPS
CCI 450M 2.341″ 4 shot 2947 FPS 14 FPS 6.6 FPS
CCI 400 1.253″ 4 shot 2950 FPS 3 FPS 1.3 FPS
CCI BR4 1.275″ 4 shot 2949 FPS 15 FPS 6.9 FPS

CARTRIDGE: 6mmBR Ackley, aka 6 BRA. Parent case is 6mmBR Norma. The 6 BRA is fire-formed to create a 40-degree shoulder and less body taper. Capacity is increased, but the neck is longer than a 6mm Dasher. The capacity is enough to get to the 2950+ FPS accuracy node. Some shooters say the 6 BRA is more forgiving than the 6mm Dasher. The 6 BRA is certainly easier to fire-form.

LOAD SPEC: 6 BRA (40° 6 BR Improved), 31.1 grains Hodgdon H4895, Bart’s 105gr “Hammer” bullets.

TEST REPORT — Conditions, Shooting Method, Loading Method

Tester James Phillips posted this report in our Shooters’ Forum:
Conditions: The testing was done in the morning over flags. The flags never moved or even twitched. I had as perfect conditions as I could have asked for. It was overcast so no mirage and no wind. There were no other shooters, just me.

Test Procedure: Each shot was precisely shot at my pace and centered the best possible using my Nightforce 15-55X scope. I did not use the round-robin method. Each four-shot group with the same was shot at one time. Then I moved onto the next primer. Everything felt right for each and every shot fired today. Of course I could repeat the test tomorrow and it could be exact opposite of today’s test. We can chase this forever. But [soon] I’m going to test the BR4 and 400 primer… for best accuracy and consistency for 10 shots each.

How Rounds Were Loaded: Each load was weighed to one (1) kernel of powder. So I know that’s as good as I can weigh them. Each bullet seating force was within 1# on my 21st Century hydraulic arbor press.

Previous Initial Load Testing: All groups were shot with 31.1 grains of H4895. During initial load testing I settled in on the Sellier & Bellot primer to finalize everything as it showed more promise over the CCI 450 Magnum I also tried. I was actually surprised to have seen the higher ES and SD from that primer today along with the vertical shown. [Editor: Look carefully — one shot from the CCI 450 is right in the center black diamond, stretching the vertical. By contrast the Rem 7.5 had almost no vertical.]

primer 500 yard testing node vertical H4895 BRA

Velocity and NODE Considerations: I was about 5-6 FPS above what appeared to been my optimum velocity of 2943-2945 FPS, so I’ll test 5 shots of 31.0 and 5 of 31.1 and see what happens from there. I can only assume my velocities where higher due to the higher humidity and of course temps were 5 degrees warmer this morning as well. It wasn’t far off but I noticed it.

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