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, 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.
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.
As any handloader knows, popular reloading powders have become difficult to find. And when you do locate the powder you want, the price might be twice what you paid a year ago (or even more on auction sites). Across the nation, shooters are asking “What gives? Why are powder prices so high? And when are the shortages going to end?”
Hodgdon Powder Company (“Hodgdon”), supplier of Hodgdon, IMR, and Winchester powders*, has attempted to answer these questions with a “Powder Update” posted yesterday. Along with addressing the shortage issues, Hodgdon explains the challenges involved in increasing production in the USA and/or increasing imports from overseas. The ultra-popular H4198, H4895, Varget, H4350, and H4831 family of powders are produced by ADI in Australia**. So Hodgdon can’t ship more Varget or H4350 in the USA unless Hodgdon can get more from Australia.
In the Powder Update reprinted below, Hodgdon answers many key questions, and debunks some misconceptions. For example, Hodgdon is NOT selling its powders on auction sites such as Gunbroker. That is completely false.
POWDER UPDATE from Hodgdon Powder Company
WHY CAN’T HODGDON SHIP MORE POWDER?
The current powder situation is due to a record demand for all reloading components and NOT a reduction in the supply of powder. With long-time handloaders looking to stock up and new gun owners looking for ammunition, there is an unprecedented demand for powder and other reloading components. We shipped a record amount of powder in 2020 and will ship even more in 2021. We are doing everything in our power to get the most powder into consumer hands this year. We are running overtime in our facilities, have hired additional staff and have leveraged relationships with shipping partners to add new shipping options.
WHY CAN’T HODGDON BUILD ANOTHER POWDER PLANT?
The “normal” powder demand for the United States would not support an additional plant. Hodgdon, like most companies, cannot afford to build a new production facility then have it sit idle until demand spikes.
WHY IS HODGDON SELLING POWDER TO THE GOVERNMENT?
Hodgdon does NOT sell powder directly to the government. We sell some powder to manufacturers making ammunition for our military, but that is a small part of our business.
WHY IS HODGDON SELLING POWDER TO AMMUNITION MANUFACTURERS?
The heart of our business is smokeless powder for the handloading enthusiast. Yes, we sell some powder to ammo manufacturers, but that is a small part of our business. Every day, we receive calls from potential OEM customers looking for powder to load in ammunition. We politely decline so we can focus on our long-term, handloading customers.
WHY IS HODGDON SELLING POWDER ON AUCTION SITES?
We don’t. Period. We recently began selling a limited amount of powder on our OWN websites but prioritize our shipments to our traditional sales channels to maximize powder availability at sporting goods and gun shops. [Editor: If you see Hodgdon powder on auction sites, that is listed by third party vendors.]
WHY IS THE PRICE OF POWDER SO HIGH ON THE INTERNET?
We do not set sale prices or MSRPs for the price of our powders at retail, nor do we encourage any of our retailers or dealers to sell on auction sites, but we cannot control what happens AFTER we sell to our traditional sales channels.
* Hodgdon also sells certain Ramshot, Accurate, and Blackhorn powders along with Goex black powder.
** Here’s a list of ADI to Hodgdon Powder equivalents from the ADI FAQ Page:
ADI / Hodgdon Propellants Equivalents
ADI Powder
Hodgdon/IMR Name
Trail Boss
AR2207
AR2219
BM2
Bench Mark 8208
AR2206H
AR2208
AR2209
AR2213H/AR2213SC
AR2217
AR2225
AR2218
Yes we miss the good old days… when reloading components were readily available and very affordable. Today, on Gunbroker, a single 1000-count box of primers may sell for well over $300. And some vendors are asking $90 for a single pound of powder that sold for $30 per pound just last year.
We can’t change prices for you, but we can offer a “sentimental journey” back to the “good old days” via a Flashback Thread in our Shooters’ Forum. There, Forum members have posted some items from their collections, with the original prices.
What is the best deal you can remember? How about $1 per pound forty-six years ago — member STS posted: “It was probably 1975 when I bought 100 pounds of H335 from Bruce Hodgdon for $100. It came in cardboard boxes with black trash bags inside. I shot every flake of it at prairie dogs.”
Reloder Powder from Hercules (Now Alliant) for $3.80 per Pound
CCI and Winchester Primers, $16.30 and $13.00 per Thousand
Today some CCI primers are selling for over $300 per thousand on Gunbroker. Member JayHHI6818 said: “Found these the other day in a shoe box in our bedroom closet!”. Nice find Jay!
Hodgdon H4350 for $10.87 per Pound
H4350 remains one of the most popular powders with competitive shooters. It’s ideal for many midsized cartridges, offering great accuracy and temp stability. Today it’s hard to find this powder at ANY price!
Remington 2 1/2 Primers for $1.50 per Hundred
Remington Arms folded. However Remington primers will be produced by Vista Outdoor after the collapse and bankruptcy of Remington Arms. Vista Outdoor, which owns CCI and Federal, will take over the Remington ammunition production facilities.
At the request of our readers, we provide select “Deals of the Week”. Every Sunday afternoon or Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, optics, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
1. Sportsman’s Warehouse — Tikka T3x SS Superlite, $699.99
⏺ Very good choice for hunting rifle — light, accurate, good action
We are fans of Tikka rifles for hunting. Build quality is good, and Tikkas have nice triggers and smooth-running actions. The Tikka T3x SS Superlite Rifle, a Sportsman’s Warehouse exclusive, is now on sale for $699.99 — a $100 savings off the regular price. Offered in numerous chamberings, this rifle features stainless action and barrel, light overall weight, and nice, 2-4 lb. adjustable trigger. Weight (without scope) is just 5.9 pounds. The T3x has a “noise reduction” synthetic stock.
2. Amazon — Tipton Ultra Gun Vise, $129.95
⏺ Very strong and versatile — use for all kinds of firearms
You need a solid, secure platform to clean and work on your guns. Most gun cleaning stands aren’t adjustable enough or are too flimsy. Not so with the Tipton Ultra Gun Vise. Weighing-in at about 10 pounds, this beefy gun vise provides a steady base. The frame is metal for strength. This Ultra Vise boasts stout adjustable jaws, specialized AR holder, and several accessory trays. Threaded feet allow the vise to be leveled on your bench. With this system you can work on just about anything including bolt-action rifles, AR-platform rifles, shotguns, pistols, and even compound bows. To fit wide forearms, you may have to remove or modify the front pads. Our Deals Editor, who owns this gun vise, reports this is an outstanding product, well worth the $129.95.
3. Sportsman’s Warehouse — Leupold Scope Sale with Gift Cards
⏺ Great prices on Leupold scopes — cash gift cards too
Hunting season is upon us. If you’re looking for a tough, “go anywhere and never lose its zero” hunting scope, think Leupold. Sportsman’s Warehouse is running a Leupold Gold Event Sale right now. You’ll find riflescopes, binoculars and more at very good prices. PLUS you’ll earn free gift cards worth $10, $25, $50, or $75 depending on how much you spend.
Nearly every firearm, press, ring set, or other gun accessory relies on hex or torx wrenches. You need the right tools for the job. Check out this SAE/Metric/Hex/Torx P-Handle Driver Set 30 Piece tool kit at Midsouth. It features popular driver types/sizes you’ll need, held in a convenient stand. These special “P-handle” drivers provide two different lengths and leverages ensuring you’re always in control of any threaded fastener.
⏺ Everyone needs a good .22 LR pistol — this is complete kit
Everyone should own a good .22 LR pistol. Rimfire pistols are fun and great for training. Plus .22 LR ammo is cheap! If you’ve been looking for a nice, yet affordable .22 LR pistol, the Smith & Wesson SW22 Victory is a good option. And right now you can get a complete SW22 Victory Pistol plus STS RANGE KIT for just $389.88. Not only do you get a great stainless .22 LR handgun (with fiber optic sights and included Picatinny rail), but you also get a range bag, ear muffs, safety eyewear, a bore snake, and a 10-pack of Caldwell Orange Peel bullseye targets.
⏺ Good spotter for price that includes tripod and carry case
Spotting scopes are vital tools for shooters. But they can be pricey, especially those with large front objective lenses. Enter the Konuspot 80 20-60x80mm Spotting Scope from Creedmoor Sports. The big 80mm objective gathers plenty of light —- good for low-light shooting and observing. For the money, this is a surprisingly good spotter (though don’t expect it to compare with a high-end Kowa, Swaro, or Zeiss). And if you order now you get a small tripod, protective case, camera adapter, and smartphone adapter at no extra charge. Very good package deal.
7. Graf & Sons — Alternatives for Hodgdon H4350 & H1000
⏺ Can’t find H4350 or H1000? Try these powders instead
Powder shelves are empty in stores, and popular powders like H4350 and H1000 are even out of stock at online vendors. Did you know there are some great alternatives out there That ARE in stock? If you’re looking for a great alternative to H4350 that shoots cooler and is temp-stable, consider Vihtavuori N165. If you’re searching for H1000, we recommend IMR 7977 Enduron as a fine substitute. Both of these choices are in stock now at Graf’s, which has very reasonable shipping and HazMat fees.
8. Brownells — MagPul 30rd PMAG Gen M2 10-pack, $119.99
⏺ Insanely good deal on quality MagPul PMAG® AR magazines
In today’s world, AR owners can use plenty of high-quality, reliable “full-capacity” magazines. Right now Brownells is running a great sale on MagPul PMAGS — some of the best you can buy. MagPul’s TEN-Packs of AR-15 PMAG Gen M2 30-round MOE Magazines are on sale now for just $119.99. But it gets better — on checkout use Brownells CODE PTT to save another $10, for a net cost of $109.99. This is a killer deal on excellent AR PMAGs.
9. Amazon — Silicone Gun Socks with Multiple Sizes, From $3.79
⏺ Long guns should be in gun socks or borestores when in gunsafes
Most people think that once you put a gun in the vault it’s safe from corrosion but that couldn’t be further from the truth. We can’t count the number of people who have left guns in a safe for years only to pull them out and find rust all over them. Avoid future surprise and disappointment by using these affordable silicone treated socks. Offered in assorted sizes for pistols, rifles, and shotguns, prices range from $3.79 (pistol) to $7.39 (tactical rifle). We also recommend using Eezox or other good corrosion inhibitor on metal parts. With that and a good treated gun sock and a Goldenrod, rust should not be a worry anymore.
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, 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.
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.
Thanks to our Forum members, we’ve found sources for some of the most popular reloading powders for rifle accuracy cartridges. Handloaders know that powders such as Varget, H4350, H4895, H4831SC, H1000, Reloder 16, Reloder 23, and N150 are often in short supply. And it seems like Varget has been near impossible to find in recent months. As of Friday, August 28, 2020, here are some sources for many of these hard-to-find powders.
Hodgdon Varget 1-pound
Source: Powder Valley
NOTE: Varget 1-lb in stock; 8-pounders still out of stock
UPDATE 8/29/20: SOLD OUT — Our Members got the last of it.
Hodgdon H4350, 1-pound and 8-pound
Source: Powder Valley
Source: Midsouth Shooters
NOTE: Powder Valley has BOTH the 1-lb and 8-lb H4350 containers in stock. Midsouth has the 1-lb H4350 only.
Alliant Reloder 16 1-pound
Source: Powder Valley
NOTE: Reloder 16 1-lb in stock; RL16 8-pounders still out of stock
Hodgdon H4831SC, 1-pound and 8-pound
Source: Powder Valley
NOTE: Powder Valley has BOTH the 1-lb and 8-lb H4831SC containers in stock.
Hodgdon H1000 1-pound
Source: Powder Valley
NOTE: H1000 1-lb in stock; H1000 8-pounders still out of stock
Vihtavuori N150 1-pound and 8-pound
Source: Powder Valley
Source: Midsouth Shooters
NOTE: Powder Valley has N150 1-lb and 8-lb in stock. Midsouth has the 1-lb N150 only.
At the request of our readers, we provide select “Deals of the Week”. Every Sunday afternoon or Monday morning we offer our Best Bargain selections. Here are some of the best deals on firearms, hardware, reloading components, optics, and shooting accessories. Be aware that sale prices are subject to change, and once clearance inventory is sold, it’s gone for good. You snooze you lose.
1. Cabela’s — Bergara B-14 HMR, $949.99
⏺ Good Ergonomics, Works for Hunting plus PRS Factory Class
Bergara rifles offer excellent value for the money. They combine accuracy, good ergonomics, and smooth function at a lower costs than many other brands. If you’re looking for a new rifle that’s capable of hunting, PRS competition, or target shooting, check out the Bergara B-14 HMR now on sale. Available in 6.5 Creedmoor or .308 Win for $949.99, the B-14 HMR features a quality synthetic stock with adjustable cheek-piece. The 24″ barrel has a threaded muzzle, so you can add a muzzle brake or suppressor.
2. Amazon — Frankford Arsenal Perfect Seat Priming Tool, $69.79
⏺ Precise Depth Control, 12 Shell Holders, Quick-Change, Carry Case
Seating primers to a consistent depth helps deliver enhanced accuracy and low ES/SD. However, most priming systems don’t allow precise depth control. If you’re looking for a priming tool that allows you to adjust primer seating depth, check out the Frankford Arsenal Perfect Seat Hand Primer. This tool comes in a protective case along with a full set of case holders and primer flip tray. A quick thumb release system allows you to switch from small to large primers quickly.
3. Precision Reloading — H4350 and Reloder 16 in Stock
⏺ Great Temp-Stable, Match-Grade Powders in Stock
The most popular powders, such as H4350 and Reloder 16, can be hard to find. But we’ve located these outstanding temp-stable powders at two leading vendors. Right now Precision Reloading has both Hodgdon H4350 (1-lb and 8-lb) and Alliant Reloder 16 (1-lb) in stock. In addition, Powder Valley has popular H4350 in stock (1-lb and 8-lb). These powders are both great choices for 6.5 Creedmoor, .284 Win, and other match cartridge types.
4. Graf & Sons — 25% Off All Sightron Scopes
⏺ Great 25% Sale! Sightrons Rival Optics Costing Hundreds More
Need a high-quality optic for your match rifle or hunting rig? Looking for a specialized “big wheel” scope for Field Target airgun competition? Sightron offers a wide range of quality scopes at affordable prices. And now the deals are even better. Right now Grafs.com is offering 25% Off ALL Sightron scopes in stock. This sale is good through 11:59 pm CT on July 10, 2020.
5. Amazon — Lyman Xpress Case Trimmer, $114.99
⏺ Great Tool — EZ Length Adjust, Variable Speed, Carbide Cutter, 10 Bushings
Trimming cases to length is a critical for precision reloading. Unfortunately, many trimmers are inefficient and/or clunky. If you want a fast, easy, and precise way to trim brass look no further than the Lyman Xpress Case Trimmer. This boast a super-sharp carbide cutter head plus a variable speed control. The unit ships with 10 shoulder bushings to cover most cartridge types. The carbide cutter trims fast and clean.
6. Amazon — Teslong Rod-Type Digital Borescope, $79.99
⏺ Handy Rod Borescope with Sharp Digital Images and Video
Teslong digital borescopes have been a huge success and earned high praise from our Forum members. First there was the cable-type plug-in model, then a Wifi Teslong that works with all types of mobile devices. The latest Teslong features a metal shaft, with length markings. This makes it easier to inspect your bore with precision. This compact, electro-optical, Rod-type Borescope ($79.99) outputs sharp, high-rez images and VIDEO to desktop computers, laptops, as well as Android tablets and smartphones.
7. Amazon — Frankford Arsenal or Lyman Brass Tumbler Sale
⏺ Great Sale Pricing, Choose Lyman or Frankford with Clear Top
⏺ Huge Discounts on Weaver Tactical, Hunting, and Competition Optics
Weaver scopes have always been a top optics option. Weaver offers models for just about any discipline. If you’re in the market for a new scope check out the amazing Weaver Scope Blowout SALE at Natchez. Natchez has a good assortment of quality Weaver scopes at crazy low prices up to 55% off. NOTE: There may be changes in Weaver scope production. Contact Bushnell for ongoing warranty policies.
9. Brownells — TriggerTech Trigger Sale
⏺ Good Selection for ARs and Rem-Compatible Bolt Guns. Save 25-35%
TriggerTech makes quality trigger with crisp breaks and adjustable pull weights. With a protectice housing, tThese triggers are very resistant to dirt and debris. If you’ve been looking for a new trigger, check out the TriggerTech Trigger Sale at Brownells. There are substantial discounts. For example the AR15 Independence trigger is discounted from $229.99 to just $149.99 — a 35% savings.
10. Midsouth Shooters Supply — Berger Ammo Sale
⏺ True Match-Grade Factory Ammo with Lapua Brass and Berger Bullets
Berger Bullets is a renowned bullet-maker. But did you know Berger makes loaded ammunition as well? Available in many calibers for both hunting and target shooting, Berger ammo is a great choice for those who want quality without hand-loading. Midsouth Shooters is running a Berger Ammo Sale. You’ll find 6.5 Creedmoor, .260 Rem, .308 Win, .300 Win Mag, .338 LM and other popular types. This ammo shoots great — check out this Berger 6.5 Creedmoor Ammo Test.
It’s July 4th, that means fireworks displays. What better time to order up some gunpowder? We’re pleased to report that Midsouth Shooters Supply has received some big shipments from the major powder makers. In stock now at Midsouth are many of the most popular accuracy powders, including: Hodgdon H4350, Hodgdon 4831/4831SC, IMR 4166, Vihtavuori N133, Accurate LT30 and LT32, Norma 203B, CFE223 and many more. Powder Valley also has Hodgdon H4350 right now.
Meanwhile at Precision Reloading you will find Alliant Reloder 16, Reloder 23, Reloder 17, IMR 4166, IMR 8208 XBR, Vihtavuori N133, Accurate LT30 and LT32, Norma 203B, and many more.
H4350 and Reloder 16 are superb, temp-stable powders for medium-sized cartridges. Reloder 23 is a slower version of RL16 that works great in magnum cartridges. LT30 is great for the 30BR, CFE 223 is excellent for Service Rifle shooters, and VV N133 is a top choice for the 6PPC. Norma 203B (nearly identical to Reloder 15) works well in the 6mmBR, 6BRA and Dasher. And Hodgdon H4831SC is an excellent choice for the .284 Winchester and 7mm WSM.
Sorry we could not find Hodgdon Varget at these two vendors. However, Bruno Shooters Supply does have Varget in stock today in both 1-lb and 8-lb sizes. Varget fans may also want to try IMR 8208 XBR. It has a slightly faster burn rate, but our tests found it worked very well in the .308 Win with medium-weight bullets, offering excellent accuracy and good velocity.
All these popular Powders (and many more) are in stock:
Summer Solstice 2020 was June 20th, and July’s nearly here. That means “peak heat” summer conditions. It’s vitally important to keep your ammo at “normal” temps during the hot summer months. Even if you use “temp-insensitive” powders, studies suggest that pressures can still rise dramatically when the entire cartridge gets hot, possibly because of primer heating. It’s smart to keep your loaded ammo in an insulated storage unit, possibly with a Blue Ice Cool Pak if you expect it to get quite hot. Don’t leave your ammo in the car or truck — temps can exceed 140° in a vehicle parked in the sun.
To learn more about how ambient temperature (and primer choice) affect pressures (and hence velocities) you should read the article Pressure Factors: How Temperature, Powder, and Primer Affect Pressure by Denton Bramwell. In that article, the author uses a pressure trace instrument to analyze how temperature affects ammo performance. Bramwell’s tests yielded some fascinating results.
For example, barrel temperature was a key factor: “Both barrel temperature and powder temperature are important variables, and they are not the same variable. If you fail to take barrel temperature into account while doing pressure testing, your test results will be very significantly affected. The effect of barrel temperature is around 204 PSI per F° for the Varget load. If you’re not controlling barrel temperature, you about as well might not bother controlling powder temperature, either. In the cases investigated, barrel temperature is a much stronger variable than powder temperature.”
This Editor had the personal experience of 6mmBR hand-loaded ammo that was allowed to sit in the hot sun for 45 minutes while steel targets were reset. The brass became quite warm to the touch, meaning the casings were well over 120° on the outside. When I then shot this ammo, the bullets impacted well high at 600 yards (compared to earlier in the day). Using a Magnetospeed, I then chron-tested the sun-heated ammo. The hot ammo’s velocity FPS had increased very significantly — all because I had left the ammo out in the hot sun uncovered for 3/4 of an hour.
Powder Heat Sensitivity Comparison Test
Our friend Cal Zant of the Precision Rifle Blog recently published a fascinating comparison test of four powders: Hodgdon H4350, Hodgdon Varget, IMR 4451, and IMR 4166. The first two are Hodgdon Extreme powders, while the latter two are part of IMR’s Enduron line of propellants.
The testers measured the velocity of the powders over a wide temperature range, from 25° F to 140° F. Hodgdon H4350 proved to be the most temp stable of the four powders tested.
Have you tried IMR Enduron powders yet (IMR 4166, 4451, 4955, and 7977)? We’ve been impressed with what we’ve seen. IMR’s line of Enduron extruded powders offer excellent temp stability, reduced copper fouling, and good load density for many popular cartridges (such as .223 Rem, 6mmBR, .308 Win, .30-06, 300 WSM to name a few). Some of our Forum members have reported excellent results with IMR 4166 in the 6mmBR, Dasher, 6.5×47 Lapua and .308 Win. One member wrote: “in my 6.5×47… 4166 gives speeds and accuracy pretty much exactly the same as Varget.” And other shooters have observed reduced copper fouling with Enduron series powders, so IMR’s Enduron anti-fouling chemistry does seem to work.
Varmint hunters, big game hunters, match shooters and military snipers all seek powders that are insensitive to temperature changes. These powders all have it. This translates to point of impact and group size remaining the same, no matter what temperature conditions prevail. Another huge benefit is an additive that prevents copper fouling from building during dozens of rounds being fired. Here the advantage is top accuracy for longer periods of time, and less cleaning time.
A third major accomplishment with this technology is ideal load density. Experienced reloaders know that a case-filling load often delivers the most uniform velocities and best accuracy. We see this in popular match cartridges such as the 6PPC, 6mmBR, 6BRA, 6.5 Creedmoor and .308 Win. These new Enduron powders offer excellent “full case” load density for the most commonly used cartridges with popular bullets.
These three powders, IMR 4166, IMR 4451 and IMR 7977, are environmentally friendly by not having any ingredients harmful to the environment. Add to that, the three of them cover the most popular cartridges from .204 Ruger up to the mighty 500 Nitro Express, and the handloader “has it all”.
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.
To learn more about how ambient temperature (and primer choice) affect pressures (and hence velocities) you should read the article 
