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January 23rd, 2018
Hey guys, you’ll probably want to download this new Powder Burn Rate Chart issued by Hodgdon/IMR. This recently-released table includes the latest IMR powders including the Enduron series (IMR 4166, 4451, 4955, 7977), shown in green below. Please note, the chart is not limited to Hodgdon and IMR propellants. It also includes popular powders from Accurate, Alliant, Norma, Ramshot (Western), Vihtavuori, and Winchester.
This chart provides useful information for all hand-loaders. When doing load development, and testing one powder versus another, it’s generally wise to choose propellants that share the same relative burn rate, as least for starters.
NOTE: Hodgdon powders are shown in blue, IMR standard powders are shown in yellow, IMR Enduron powders are shown in green, and Winchester powder are shown in red. DOWNLOAD Chart HERE.
NEW POWDER BURN RATE TABLE from IMRPowder.com
Story find by EdLongrange. We welcome reader submissions.
September 16th, 2016
Click image for Online Reloading Data. CLICK HERE for Printable PDF Reloading Guide.
Vihtavuori has updated and enhanced its reloading information, adding VV powder load recipes for many more cartridge types. Data is now online for 64 rifle cartridge types and 26 pistol cartridge types. You’ll find the updated reloading data on the Vihtavuori Website. Bookmark this link: www.vihtavuori.com/en/reloading-data/about-reloading.html.
The updated online information supplements the Vihtavuori Reloading Guide (2016 Edition) available in PDF format. The online Reloading Database has dedicated sections for Rifle Cartridges, Pistol Cartridges, and Cowboy Action. There is also a handy, FREE Reload Mobile App for iOS and Android.
Rifle Reloading Data
Vihtavuori’s Rifle Reloading Database is now very comprehensive. Many of the popular modern match cartridges such as the 6.5×47 Lapua and 6.5 Creedmoor are now included, and of course you’ll find the 6mm PPC, 6mmBR, and 6XC. (There is no .284 Win or 7mm RSAUM data unfortunately.) You will find recommended load recipes for all the following cartridges:
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.204 Ruger
.221 Remington Fireball
.222 Remington
.22 Hornet
.22 PPC-USA
.223 Remington
.22-250 Remington
.223 WSSM
.243 Winchester
.243 WSSM
6mm PPC-USA
6mmBR Norma
6 XC
6mm Remington
.240 Weatherby Magnum
6.5 Grendel
6.5 x 47 Lapua
6.5 Creedmoor
6,5 x 55 Swedish Mauser
6,5 x 55 Swedish Mauser/ SKAN
6.5-284 Norma
.25-06 Remington
.260 Remington
.270 Winchester
.270 WSM
.270 Weatherby Magnum
7 mm-08 Remington
7 x 57
7 x 64
7 mm Remington Magnum
7 mm WSM
7 mm RUM |
7 x 57R
7 mm Weatherby Magnum
7,5 x 55 Swiss GP31
.30 Carbine
.30-30 Winchester
.300 AAC Blackout
7,62 x 39
.300 Savage
7,62 x 53R (7,62 Russian)
.308 Winchester
.30-06 Springfield
.300 Lapua Magnum
.300 Remington Ultra Magnum
.300 Winchester Magnum
.300 Weatherby Magnum
.30-.378 Weatherby Magnum
.300 H&H Magnum
.300 WSM
.303 British
8 x 57 IRS
8 x 57 IS (8 mm Mauser)
.338 Winchester Magnum
.338 Lapua Magnum
9,3 x 62
9,3 x 66 Sako
9,3 x 74R
.375 H&H Magnum
.416 Rigby
.444 Marlin
.45-70 Government
.458 Winchester Magnum
.50 Browning |
Handgun Reloading Data
Likewise, VV’s Handgun Reloading Database is extensive. These pistol cartridges are covered:
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.32 S&W Long N.P.
.32 S&W Long Wadcutter
.357 Remington Maximum
.357 Magnum
.357 SIG
.38 Super Lapua
.38 Super Auto
.38 Special
7 mm GJW
7 mm TCU
7 mm BR Remington
7,62 x 25 Tokarev
9 mm Luger |
9 x 21
9 x 23 Winchester
.40 S&W
10 mm AUTO
.41 Remington Magnum
.44 S&W Special
.44 Remington Magnum
.45 ACP
.45 Colt
.45 Winchester Magnum
.454 Casull
.500 S&W Magnum
.50 AE |
Story Tip by EdLongrange. We welcome reader submissions.
April 22nd, 2016
In 2015, IMR® Powder introduced a new line of powders with Enduron® Technology. These powders are designed to address several performance gaps as powder technology has advanced. Here are key features of the Enduron line of propellants:
- Enduron powders contain an additive that drastically reduces copper fouling in the gun barrel. Copper fouling should be minimal, allowing shooters to spend more time shooting and less time cleaning a rifle to retain accuracy.
- The new Enduron line is insensitive to temperature changes. Whether a rifle is sighted in during the heat of summer, hunted in a November snowstorm or hunting multiple locations with drastic temperature swings, point of impact with ammunition loaded with Enduron technology will be very consistent.
- Enduron powders provide optimal load density, assisting in maintaining low standard deviations in velocity and pressure, a key feature for top accuracy.
- Enduron technology is environmentally friendly, crafted using raw materials that are not harmful to the environment.
New IMR 4955 for Larger Cartridges
For 2016, IMR has introduced IMR 4955, a new Enduron extruded powder that is a top performer with popular cartridges such as 270 Winchester, 25-06 Remington, 280 Remington, 300 Winchester Magnum and many more. This new powder falls directly between the new IMR 4451 and IMR 7977 in burn speed, providing excellent performance for most big-game cartridges. Like all Enduron Technology powders, IMR 4955 is temperature insensitive, as shown below.
Adding this propellant to the Enduron line filled in an important place on reloading benches. IMR 4955, plus the original three Enduron powders, provide excellent loading solutions for cartridges from 223 Remington to the massive 500 Nitro Express Magnum. Further, in these days of powder shortages, these new Enduron powders can fill a gap by providing comparable performance to select Hodgdon® powders. Specifically, IMR 4955 is a great choice for cartridges that work well with Hodgdon H4831.
IMR Enduron 4955 is available in one-pound (1 lb.) and eight-pound (8 lb.) containers from quality reloading retailers.
January 17th, 2016
Are you a 6 PPC shooter who relies on Vihtavuori N133? Or maybe you’re a .45 ACP Bullseye shooter who uses N310 or N320. Or perhaps you favor N150 in your 6mmBR or .308 Winchester. If you are a Vihtavuori powder user (or are considering trying these fine Finnish powders), then check out Vihtavuori’s new FREE mobile App.
The new Vihtavuori Reload App lets you keep track of your favorite reloading recipes, and manage load development. You can log load recipes for as many firearms and cartridge types as you want. The App holds all relevant data — cartridge class, bullet, loads specs. The Vihtavuori Reload App also provides instant access to the latest Vihtavuori Reloading Data as well as other Vihtavuori information. If you want hard copy of your load recipes, just email the recipe(s) to your personal e-mail account and then you can print out the info with a networked printer.
Download for iOS from Apple App Store | Download for Android from Google Play Store
For over 90 years, Vihtavuori has been known for producing high-quality propellants with reliable ballistic performance, long shelf-Life, and a wide selection of burn rates. Vihtavuori powders are manufactured to very high standards, and many world records have been set with Vihtavuori propellants. For more information, visit www.Vihtavuori.com.
September 25th, 2015
Powder Valley Inc. (PVI) is now carrying Shooters World-branded powders produced by the Czech enterprise Explosia A.S., which has produced propellants since 1920. Powder Valley will initially be offering four new Shooters World propellants: Clean Shot, Heavy Pistol, Match Rifle, and Blackout. These are canister-packaged forms of the popular Lovex propellants sold in Europe. These powders are very affordable — they cost just $19.95 per pound at PVI. For other pricing and ordering information go to PowderValleyInc.com. Match Rifle, Blackout, and Clean Shot are all currently in stock at PVI.
Shooters World says: “We have received nothing but praise about the quality of these [Lovex] propellants. Because of this, we are very confident in how our canister propellants will fare in the reloading market. We have had many competitive shooters using our product[.]”
Shooters World Reloading Guide (SAAMI) | Lovex Reloading Guide (CIP) | Burn Rate Chart
The following descriptions of Shooters World propellants have been provided by the manufacturer. Since AccurateShooter.com has not tested any of these powders yet, we cannot verify any particular claims:
Shooters World Powders — Manufacturer’s Product Descriptions
Match Rifle propellant is our canister form of Lovex D0 73-06 propellant. It is similar in burn speed to Accurate® 2520 and CFE™223. It holds the broadest utility across all moderate rifle propellants. The propellant gas generation rate is appropriate for cartridges of the light to heavy sectional density .223 Remington and .308 Winchester. It can load the 55 grain .223 Rem, as well as the 77 grain .223 Rem. It loads the 150, 168, and 175 grain .308 Winchester, and loads all .30-30 combinations. It works in .30-06, in 7mm-08, and even in the .22-250.
Blackout propellant is our canister form of Lovex D063-02 reloading propellant. It is slightly slower in burn speed than Accurate 1680®. The propellant gas generation rate is superior for subsonic 300 Blackout, 7.62×39, and some straight-walled rifle cartridges, where rapid transformation from powder to gas is desired. You would be hard pressed to find a subsonic 300 Blackout propellant that will give you the cycling reliability of the Shooters World Blackout.
Clean Shot propellant is the canister form of Lovex D0 32-03 propellant. Ballistic results for this propellant show it to be highly versatile, with low residue in a myriad of pistol cartridges. The burn rate is similar to Accurate No. 2®. Additionally, we have tested this propellant in shot shell, and found it to be exceptionally clean and consistent in velocity. This propellant can be used in virtually all pistol cartridges. A spherical propellant, it meters through charge plates extremely consistently and will work with a high-speed loader with very good flow. This propellant contains flash suppressant and is optimized for .45 ACP, 38 SPL, some standard velocity 9mm, some .40 S&W applications, reduced loads in .357 magnum, .44 magnum, and others.
Heavy Pistol propellant is our canister form of Lovex D0 37-02 propellant. It is similar in burn speed to Accurate® No. 9. The gas generation rate is appropriate for cartridges of the magnum pistol family and the .300 AAC Blackout, supersonic with light bullets. It does contain a level of flash suppression, incorporated into the propellant. A spherical propellant, it meters through charge plates consistently and will work with high-speed loaders with very good flow. This propellant is bracketed on the fast side by D0-37-01 (similar to Accurate® No 7), and on the slow side by D0-63-02 (similar in burn speed to Accurate® 1680).
CLICK HERE for Complete Explosia S.A. Catalog with many more powders.
Technical Information — CIP vs. SAAMI
Shooters World is in the process of developing reloading data based on SAAMI/ANSI standards. This data will be published on the Shooters World website, as it is generated and proofed in SAAMI test barrels, and compared against SAAMI reference ammunition. Hand-loaders can also reference information in the Lovex Reloading Guide, which has data tested to CIP (Commission Internationale Permanente) standards.
 Note that Shooters World has maintained the nomenclature of the Lovex propellants on its reloading canister bottles. Shooters World did this to ensure that reloaders would have maximum access to reloading data — both from European and American standards. Shooters World says: “The charge weights and pressures reported in the Lovex Reloading Guide have been found very reliable”.
The main difference between CIP data and SAAMI standardization has to do with barrel length. CIP barrel length standards and SAAMI barrel length standards do not necessarily correspond. Therefore, the velocities reported in the Lovex Reloading Guide may not directly relate to USA standards. As is always the case, any reloader should start the load development process at a safe “starting charge”, and slowly increase charge weights to desired performance levels. Never exceed a maximum published load.
May 17th, 2015
Shooters rejoice — we now have new propellant options for rifles, pistols, and shotguns. Noble Sport is now importing its VECTAN series of powders, which are available now at Grafs.com. What’s even nicer, the VECTAN bottles contain 1.1 pounds of powder, so you get a little extra for your money (compared to traditional 1-pound containers). Check the VECTAN Reloading Data Page to see what Nobel Sport powders best suit your needs.
CLICK Here for VECTAN Load Data and Burn Rate Chart (PDF)
March 12th, 2015
Looking for powder? Precision Reloading just received a pretty large shipment of Hodgdon, IMR, and Winchester Powders. This vendor also has popular Accurate, Alliant, Norma, and Vihtavuori Powders in stock. Sorry, no Varget or H4350 arrived, but Precision Reloading does have many popular propellants now. Powders currently IN STOCK at Precision Reloading (as of 9:00 am, 3/12/2015):
Hodgdon: H4831sc, H4831, H4198, H414, H335, H380, Hybrid 100V, H50BMG, Titegroup, 800X, Superformance, LeveRevolution (and others).
IMR: 4166 (New Enduron), 4227, 4320, 4350, 4451 (New Enduron), 4895, 7828SSC,
Alliant: RL33, RL50, 4000MR, PowerPro Varmint
Norma: 200, 201, 202, 203B (like RL15), 204, MRP, URP
Accurate: 4064, 4350, 5744, Magpro
Vihtavuori: N133, N135, N160, N340, 20N29
Reloading tip: If you currently use Alliant Reloder 15, Norma 203 B is very, very close. It is made by the same manufacturer, in the same plant, with the same burn rate and kernel size. Of course, for safety, you should still start low and work up your load incrementally.
February 21st, 2015
Rick Jensen, Captain of the U.S. F-Open Rifle Team, recently tested some of the new IMR 4451 powder. Rick and other team members were looking for a good powder that could replace Hodgdon 4350 which is difficult to obtain currently. The makers of IMR 4451 claim that it is not sensitive to temperature and that it delivers competitive accuracy. So far, Rick’s tests, done with a .284 Winchester and 180gr Berger Hybrids, appear to confirm those claims. Rick posts:
 “I did a little informal powder comparison of H4350 versus the new IMR 4451. Rifle used was a Kelbly Panda with a 30″, 1:8.75″ twist 5R Bartlein barrel [chambered in .284 Win]. All charge weights were 50.0 grains using CCI BR2 primers. I was very impressed with this new powder and I believe it to be equal to H4350 as far as temperature sensitivity.
I did not test for accuracy but I will tell you my groups were pretty much equal between the two and all were in the .2-.3 MOA range. I will defiantly be shooting more of this powder in the weeks to come, assuming the supply chain will allow. It looks very encouraging to finally have a alternative to H4350 that we might actually be able to buy.”
Chronograph Results with Temps from 23° F to 101°
Here are chronograph results of a comparison test between IMR 4451 and H4350. Rick’s rifle was cleaned and allowed to cool between each test. Five fouling shots were fired before each test. Important: Note that for both Test #1 and Test #2, the powder order is reversed in the mid-temp fields (IMR 4451 first, then H4350). For the low and high temp entries, H4350 is listed first.
Here are the IMR 4451 fired cases, displayed Left to right, coldest to the hottest (in terms of case temp when fired). All charge weights were the same: 50.0 grains.
January 15th, 2015
Is that target good enough? Yes that’s really five (5) shots. This amazing group was shot, in competition, with 6 PPC cartridges loaded with Accurate LT-32 powder. If you’d like to try out this powder in your rifle, Western Powders has released loading data for the LT series of powders. LT-32 is a good choice if you’re currently using propellants with burn rates similar to Vihtavuori N133 or Hodgdon Benchmark powders. (Caution: NEVER simply substitute loads powder for powder. Always start low and work up when trying a new powder). The other powder in Accurate’s LT series, LT-30, has a burn rate similar to Hodgdon H4198. LT-30 is a superb performer in the 30 BR cartridge. LT-30 also is a good choice for small varmint cartridges such as the 17 Rem Fireball.
Download FREE Reloading Guide for Accurate and Ramshot Powders
You can also download the complete Western Powders Reloading Guide in PDF format. This covers Accurate and Ramshot propellants.
October 21st, 2014
 IMR is bringing out a new series of advanced-formulation extruded powders. In 2015, IMR will introduce three (3) new Enduron powders: IMR 4166, IMR 4451, and IMR 7977. The new line of IMR Enduron powders feature small kernels for easy metering, plus a built-in copper fouling eliminator. IMR claims that Enduron powders are not sensitive to temperature changes. If this is true, these powders should prove popular, particularly IMR 4166 which seems to be in the Varget/Reloder 15 burn-rate range. With Varget so hard to find, if IMR 4166 proves accurate (and available) we might see many .308 Win shooters make the switch. IMR states that IMR 4166 is a “versatile, match grade propellant”. We’ve been quite pleased with IMR 8208 XBR as a Varget alternative. IMR 8208 XBR is accurate, clean-burning, and offers good velocity. Perhaps the new IMR 4166 will be as good or better.
When will Enduron powders appear on dealers’ shelves? Hodgdon Powder Co., distributors of Hodgdon, IMR, and Winchester powders, says that: “The new IMR Enduron™ Technology powders will be available at dealers in early 2015 in 1-pound and 8-pound containers.” For more information and Enduron LOAD DATA visit imrpowder.com or check the 2015 Hodgdon Annual Manual.
IMR’s press release provides these descriptions of the new Enduron propellants:
IMR 4166 is the first in the series of Enduron™ propellants. It’s a perfect burn speed for cartridges like the 308 Win/7.62mm NATO, 22-250 Remington, 257 Roberts and dozens more.
IMR 4451 Another new Enduron powder that gives top performance in the venerable .30-06, 270 Winchester, and 300 Winchester Short Magnum, to name just a few. This propellant is ideally suited for many mid-range burn speed cartridges.
IMR 7977 is the slowest burn rate Enduron Technology powder. It is a true magnum cartridge propellant with outstanding performance in such cartridges as the .300 Winchester Magnum, 7mm Remington Magnum, .338 Lapua and more.
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