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August 31st, 2009

Euro Powder-Maker Shares Technology with ATK (Alliant), Plans Joint Production in USA

Alliant Reloder 17If you have followed our reports on Reloder 17, you’ll know that this Alliant powder, produced in Europe by Rheinmetall Nitrochemie, is a unique propellant that, in many cartridges, can offer 100 fps (or more ) velocity than any other commercial powders. The secret to the extra speed is a proprietary Nitrochemie process that embeds or saturates the kernels with burn-rate controlling compounds. This allows a longer duration, extended energy release. Most conventional extruded powders have surface coatings only. These tend to have a strong “spike” in their energy release but then decrease rapidly in energy output. By sustaining the energy release over a longer period of time (in the barrel), powders such as Reloder 17 promise to deliver higher velocities than could be achieved with other propellants.

Following the release of Reloder 17, sources at Alliant Powder, an Alliant Techsystems (ATK) subsidiary, confirmed that we can expect more powder products using the new Nitrochemie technology. Alliant plans to release both a faster powder (for 223-sized cartridges) and a slower powder (for large magnums).

ATK and Rheinmetall Nitrochemie Announce Strategic Partnership
Rheinmetall Nitrochemie (RN) is jointly owned by Rheinmetall AG and RUAG of Switzerland. Since 2005, ATK has been a Rheinmetall sales partner. Now ATK and Rheinmetall Nitrochemie plan a much closer relationship, through which RN will share propellant technologies and ATK and RN will produce powders together in US facilities. ATK has agreed to a “strategic partnership” with the Rheinmetall Nitrochemie Group, the propellants division of the Düsseldorf-based Rheinmetall Defence Group.

According to DefenseNews.com, “Under terms of the agreement, propellant technologies will be transferred from Nitrochemie to ATK, and the two companies will target sales in North America and elsewhere. While Rheinmetall will gain access to expanded markets, ATK will receive licenses to manufacture and sell powder and propellant systems developed by the German firm. These products will be marketed to both the U.S. military and other ammunition manufacturers.” Through the strategic partnership, ATK will become the exclusive North American vendor of the new-generation Nitrochemie propellants. The technology transfer positions ATK as the exclusive North American provider of Nitrochemie’s Extruded Impregnated (EI), Extruded Composite Low-sensitivity (ECL), Surface Coated Double Base (SCDB), and R-Type propellants.

Rheinmetall Nitrochemie to Build Powder-Making Facility in the USA
As part of the new, expanded business relationship with ATK, Rheinmetall Nitrochemie will shift some of its actual powder production to the United States. Rheinmetall and ATK revealed “medium-term plans” under which a new, powder-processing plant will be set up in the USA and operated by Rheinmetall Nitrochemie in cooperation with ATK. This will allow Nitrochemie propellants to be sold at more competitive prices, since they will no longer have to be shipped across the Atlantic. No specific date was given for the construction of the new powder factory.

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January 18th, 2009

SHOT Show Report: Alliant's Five New Power Pro Ball Powders

Alliant Powder is well-known among precision shooters. Reloder 15 has set many world records in the 6BR and 6BR Improved cartridges, and the new Reloder 17 powder offers dramatically increased velocities in cartridges such as the 6XC and .284 Winchester.

Power Pro Alliant Powder

At SHOT Show 2009, Alliant unveiled its new Power Pro™ series of canister, spherical powders. There are five (5) new powders: Magnum Pistol, Varmint Rifle, Medium Rifle, Large Rifle, and Magnum Rifle. Each powder has a burn rate optimized for the particular application (Medium Rifle is a bit slower than RL15, Large Rifle rate is similar to H4350, Magnum is similar to H4831). Alliant claims that “Power Pro powders deliver improved velocity and density for more efficient reloading and help reloaders duplicate certain factory loaded ammunition.” Alliant engineer Dick Quensenberry said reloaders can expect to get +50 fps more from the Power Pro series than with most other, comparable ball powders.

Power Pro Alliant Powder

alliant Reloder 50 powderNew Powder for 50-Caliber Applications
Alliant also recently introduced Reloder 50, a new powder designed for long-range, 50 caliber rifle shooters. Burn rate is “a little slower than Winchester 860.” The powder is showing excellent lot-to-lot consistency and the load density is optimized for the 50 BMG and similar cases. Like Reloder 17, Reloder 50 employs a process which staturates/penetrates the kernels with the burn rate controlling chemical. This should allow a longer, flatter pressure curve, allowing more velocity than conventional powders can deliver. Alliant says that Reloder 50 offers “superior velocity and the ability to burn cleaner (with less residue).” Reloder 50 will be available in both 1-lb (#150527) and 8-lb (#150528) containers.

On the Horizon — More Alliant Powders like Reloder 17
Reloder 17, made in Switzerland by Nitro Chemie, is a unique propellant that offer a smoother, longer energy release because the burn rate controlling chemicals are saturated into the kernels rather than just applied to the outside. This can provide extra energy over the course of the burn, with the result that Reloder 17 can deliver more velocity than any other powder with a similar burn rate and density. The demonstrated high performance of Reloder 17 has created demand for similar formulations, but with faster or slower burn rates. The good news is that Alliant’s Reloder 50 (see above) has the new burn rate control chemsitry, and Alliant is working right now on at least two new powders that will use the Nitro Chemie’s new powder technology. One powder (Reloder 16?) will be faster than RL 17, and one will be slower — possibly in the H1000 range. Stay tuned to AccurateShooter.com for future updates.

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July 19th, 2008

Reloder 17 Delivers Stunning Velocities in First Tests

Alliant’s new Reloder 17 powder is the new “Speed King” in its burn-rate category. It promises to raise the velocity bar in many cartridges which work best with slow-burning propellants. Based on initial test results, if you’re using H4350, IMR4350, Reloader 19, Norma URP, or H4831 currently, you may find that RL17 can deliver dramatically higher velocities than other powders. CLICK HERE for FULL REPORT.

RL17 Boosts Speeds by 200 fps
The day after two pounds of RL17 arrived in Phoenix, German Salazar and Bob Jensen tried the new propellant in 6XC and .308 rifles, using an Oehler 43 chronograph equipped with pressure-testing equipment. The results were eye-opening. German was able to get 3311 fps using 107gr Sierra MKs in the 6XC. That’s roughly 200 fps faster than other popular extruded powders can deliver. With the 115 Berger, the 6XC topped 3200 fps, again a very impressive speed gain. Most 6XC shooters find that 3000-3050 fps is the most they can get with a 115gr bullet.

Speed by Design
What’s the secret to this new powder? First it’s made differently than most other propellants. Most extruded powders have an external coating on the kernels that governs burn rate. With RL17, the burn regulating compound saturates the entire kernel — it’s not just on the outside. The practical effect is that RL17 is able to maintain a higher energy level for a longer time — the energy output does not fall off as steeply as other powders. The other factor is density. Reloder 17 has fairly small kernels so it packs very tightly compared to H4831sc. As a result you can fit more powder (by weight) into the case.

Accuracy Testing Comes Next
German will continue his testing with other calibers — as soon as we can get more RL17 from Alliant. German also plans to start accuracy testing next week. If RL17 can deliver accuracy to match its high velocities, it looks like it would be a very good choice for the 6-6.5×47 Lapua, 6XC, 243 Win, 6mm Remington, .284 Winchester, and 30-caliber cartridges with the big (185+ grain) bullets.

Limited reloading data is available currently, but Alliant has distributed a preliminary load data sheet with loads for a dozen popular calibers. CLICK HERE to DOWNLOAD RELODER 17 DATA.

reloder 17 Alliant Powder

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