Widener’s Reloading & Shooting Supply recently published a helpful introduction to reloading powders. Widener’s online Guide to Smokeless Powders shows the various types of powders, and explains how the differences in powder kernel/flake size and shape, and burn rate affect performance. We recommend you visit Widener’s website and read the Powder Guide in full.
Take a close look at these illustrations which show the key differences between the four main powder types: extruded (stick) powder, ball (spherical) powder, flattened ball powder, and flake powder.
Burn Rate Basics
Widener’s Guide to Smokeless Powders also has a useful discussion of Burn Rate (a confusing topic for many hand-loaders). Wideners explains: “While a gun powder explosion in the cartridge seems instantaneous, if you slow it down you will actually find that each powder has a different ‘burn rate’, or speed at which it ignites.” This video shows powders with two very different burn rates. Watch closely.
Different burn rates suit different cartridge types notes Widener’s: “In general a fast-burning powder is used for light bullets and low-speed pistols and shotguns. Medium-rate powders are used for magnum pistols, while high-velocity, large bore rifle cartridges will need slow powders[.]
It should be noted that burn rate does not have a standardized unit of measurement. In fact, burn rate is really only discussed in comparison to other powders; there is no universal yardstick. Specifics will change by cartridge and bullet types[.]”
You can never be too safe when hand-loading your own ammunition. This helpful Brownells video outlines the Seven Fundamental Reloading Safety Tips. This is important information for novice hand-loaders and a good refresher for those with reloading experience!
Summary of the Seven Safety Tips:
1. Store your reloading supplies in a safe and dry location, away from children and away from any possible source of ignition. This includes keeping your powder and primers separate.
2. Get and use respected reloading manuals, especially for new cartridges. Start low and work up slowly while watching for warning signs of pressure and/or case fatigue.
3. Locate your reloading activity where you will not be distracted. If you get interrupted, stop. (Distractions will eventually lead to mistakes.)
4. Do NOT mix powders. Keep your powders clearly marked and dated. You can use masking tape to write the date on the container.
5. If you load the same cartridge type for different firearms, make sure your ammo headspaces properly in each gun.
6. Check cases frequently. Look for split necks, case head separation or other signs of fatigue and excessive pressure.
7. If reloading military brass, be aware that case capacity is usually reduced, and initial loads should be at least 10-15% lower than published data.
Here are some other tips that will help your avoid making costly mistakes (such as using the wrong powder, or undercharging a case):
Powder Type — Always double-check the label on your powder containers. After placing powder in the powder measure, put a piece of tape on the measure with the powder type written on it. Some guys write the powder type on a card and place that right in the hopper.
Scale Drift — Electronic balances can drift. If you are using a digital powder scale, calibrate the scale with a test weight every 50 rounds or so.
Case Fill — If you throw more than one charge at a time, look INSIDE every case before seating a bullet. Squib charges can be dangerous if you don’t notice them before firing the next round.
Progressive Presses — When using a progressive press, consider using an RCBS Lock-Out Die. This will detect a low charge and stop the machine. These dies will work with RCBS, Hornady, and Dillon progressives.
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.
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:
.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
.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.
Here’s an important announcement for anyone who uses a powder in the 4350 range. Alliant is now shipping the all-new Reloder 16 powder. The burn rate is slightly faster than Reloder 17, and a bit slower than Varget or Reloder 15. Notably, this new Reloder 16 powder is very temp stable. AccurateShooter.com was shown “top secret” test results comparing Reloder 16 with other popular propellants, including Hodgdon Extreme series powders. The results for Reloder 16 were remarkable. Reloder 16 showed extremely constant velocities even with very high ambient temps — so this is a powder you can shoot even on hot Arizona summer days.
This is NOT just a slower version of Alliant’s double-based Reloder 15 (which words great in the 6mmBR and Dasher cartridges). Reloder 16 is a completely new formulation, produced in Sweden by Bofors for Alliant. Reloder 16 utilizes TZ technology, which manipulates the response of the propellant and resists the natural tendency to generate more pressure at higher temperatures and less pressure at lower temperatures.
As a result, Reloder 16 offers outstanding temperature stability. Based on the test results we’ve seen, if you are using H4350 or IMR 4451 currently, you should definitely give Reloder 16 a try. The powder also boasts excellent lot-to-lot consistency and contains a proprietary de-coppering additive.
Match and Hunting Cartridge Applications:
Alliant tells us that Reloader 16 “is ideal for traditional hunting cartridges, such as .30-06 Springfield and .270 Winchester, as well as 6.5mm target loads and tactical applications wherein temperature stability is required.” We also think the powder may work very well in these popular match cartridges: 6XC, .243 Win, 6.5×47 Lapua, 6.5 Creedmoor, .260 Rem, .284 Win, and .300 WSM. For example, Alliant’s Load Data Sheet shows a 2772 FPS load with 142gr SMKs in the .260 Rem.
In our Shooters’ Forum, many questions are asked about QuickLOAD software — how to get best results, how to use the advanced features, how to adjust for temperature and so on. To help answer those questions, here’s a short feature we first ran during SHOT Show 2012. You can also CLICK HERE for a very detailed explanation of QuickLOAD in our main site.
At SHOT Show, we had the chance to meet with German software engineer Hartmut Broemel, creator of QuickLOAD software. This software program, while not a substitute for conventional load manuals, allows shooters to evaluate a wide range of powders and bullets, comparing potential loads on the basis of predicted pressures, velocities, load density and projectile in-barrel time.
We took the opportunity, in the video below, to explain some of the fine points of QuickLOAD for our members. QuickLOAD, sold by Neconos.com, helps reloaders understand how changing variables can affect pressures and velocities. It can predict the effect of changes in ambient temperature, bullet seating depth, and barrel length.
In the video below we explain how to adjust the program for true case capacity, bullet seating into the lands, and other important factors. If you are a new QuickLOAD user, or are contemplating buying the $152.95 program, you should watch the video. The program isn’t perfect, but it can accelerate the load development process, and it can save you money by narrowing down the list of appropriate powders for your cartridge.
No other product currently available to serious reloaders offers as much predictive power as QuickLOAD, and you’ll find your money well spent just for the vast collection of data on bullets and cartridges. With a couple mouse-clicks you can instantly get the specifications of hundreds of bullets and cartridges. Likewise, in a matter of seconds, you can compare load density for a half-dozen powders, or compare the projected velocities of one cartridge versus another.
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.
Here’s a great search service that can help you locate hard-to-find ammunition and reloading components — while saving money in the process. Ammoseek.com monitors more than a dozen online vendors — checking current pricing and available inventory, for pistol, rifle, and shotgun ammunition. Need .45 acp ammo for your 1911? Just select “.45 ACP” from the “Quick Seek” list on the right. Likewise you can find .223 Rem and .308 Win Rifle ammo with one click.
Find .22 LR Ammo Quickly
Looking for hard-to-find .22 LR rimfire ammunition? Well AmmoSeek makes it easy — you don’t even have to enter any search words. Simply click on the highlighted links for AmmoSeek’s 22LR Page.
Use Ammoseek.com to Find Reloading Components Too
Ammoseek.com also lets you search for reloading components, including powder, primers, brass, and bullets. This is a huge time-saver. You can instantly check a dozen or more vendors to see if a particular type of powder is in stock. Likewise, you can quickly check for primer availability. If you have a big match coming up and are short on primers — this could solve the problem.
Story Tip by Boyd Allen. We welcome reader submissions.
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.
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.
Hey guys, you’ll probably want to download this new Powder Burn Rate Chart issued by Hodgdon/IMR. This new table shows the latest IMR powders including the Enduron series (IMR 4166, 4451, 4955, 7977), shown in green below. 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, while IMR standard powders are shown in yellow. DOWNLOAD Chart HERE.
Do you own an RCBS electronic powder dispenser? If you do, take the time to watch this ChargeMaster Tuning video from 8541 Tactical. This nine-minute video demonstrates how to re-program your Chargemaster to “tune” the dispensing process. The video shows the exact programming procedures to follow, step-by-step. Some folks want a faster powder flow — others tune their machines for a more reliable drop (with fewer over-runs). One cheap and popular modification is to insert a 1″-long section of a McDonald’s straw in the ChargeMaster’s silver dispensing tube. This works surprisingly well to smooth kernel drop and prevent “clumping” that can cause an over-charge. The McDonald’s straw MOD is demonstrated in this video, starting at the 6:22 mark.
Large-Diameter Dispensing Tube Mod
Many folks have had success with the McDonald’s straw modification demonstrated in the above video. However, some folks would like to get even better flow performance (with virtually no clumping). Forum Member Frank B. has come up with a new option using a brass hose fitting with a large outside diameter. The hose fitting (with tape wrapped around the barbed nose section) is placed inside the RCBS dispensing tube (be sure to have some kind of wrap — you don’t want metal-on-metal). Here’s how the unit looks installed:
Frank tells us: “I have found a cure for the over-throw problem. It is a simple 1/4″ barbed hose nipple. I wrapped a couple layers of tape around the barbed end for a snug fit. With this in place, I have thrown 100+ charges of Varget without a single overthrow. The ID of the barbed end needs to be approximately 3/16″ to feed a steady flow. This works because of the larger ID at the drop.”
Frank adds: “You can see in the photo that the powder is not stacking up. You can watch it drop one grain at a time. Hope this will take the aggravation out of your case charging.” For best performance with this brass fitting MOD, we recommend de-burring and smoothing out the front edge of the brass fitting over which the kernels drop.
Brass fitting mod suggested by Boyd Allen. We welcome reader submissions.
At SHOT Show, we had the chance to meet with German software engineer Hartmut Broemel, creator of QuickLOAD software. This software program, while not a substitute for conventional load manuals, allows shooters to evaluate a wide range of powders and bullets, comparing potential loads on the basis of predicted pressures, velocities, load density and projectile in-barrel time.
