Vihtavuori Smokeless Powder is used by the some of the best shooters and manufacturers in the competitive shooting industry, they have gained an excellent reputation for being one of the best smokeless powders available. All of these powders ensure clean burning and repeatable shooting properties in all weathers and conditions. Vihtavuori Smokeless Powders are credited with uniform and superb quality based on full control of the whole production chain beginning from the production of nitrocellulose to the bottling of the end product. These strict quality acceptance limits have helped reloaders and cartridge manufacturers to achieve similar loads regardless of the production lot for more than 85 years. It is easy to see why Vihtavuori Smokeless Powders have achieved a strong position among top class shooters around the world.
Vihtavuori offers two rifle powders specifically for the .50 BMG case; 24N41 and 20N29. These are single-based treated powders, having very large grain size and  extremely slow burning rates ideally suited to the .50 BMG. They also have some application in a few other very large capacity cases, such as the .338 Lapua Magnum and the .30-378 Weatherby Magnum. Of the two, 24N41 is slightly faster than 20N29, with renewed relative burning rates 39 for the 24N41 and 36 for the 20N29, when N110 is given the index 100.   Other Important Information: Do not exceed the loads displayed in the reloaders guide. Never mix any two powders regardless of type, brand, or source. Never substitute any smokeless powder for Black Powder or any Black Powder substitute.