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.

Vihtavuori 20N29 rifle powder is available in 1 kg bottles