Vihtavuori N570 rifle powder is a recent addition to our high-energy powder lineup, developed specifically for magnum cartridge reloaders. Recognizing a market demand for this type of powder, we engineered N570 to fulfill our customers' requirements. This high-energy powder, characterized by its large grain size and high bulk density, is designed to maximize the velocities of cartridges with substantial case volumes, such as the 6.5-.284 Norma, .300 Win Mag, .300 Remington Ultra Magnum and .338 Lapua Magnum. N570 is particularly suitable for long-range target shooting and military applications involving large-volume cartridges. As the slowest powder in our high-energy series, N570 is an extruded, tubular powder with grain dimensions of 2.3mm in length and 1.3mm in diameter. Due to its large kernel size, similar to 24N41 and 20N29, we recommend weighing N570 charges rather than relying on powder measures, which may not consistently deliver accurate charges. This practice helps prevent undercharging or overcharging cases. Like all powders in our N500 series, N570 is manufactured from high-quality nitrocellulose, with grains impregnated with nitroglycerine and non-energetic additives, resulting in increased muzzle velocity without raising chamber pressure or causing additional wear on firearms. Vihtavuori also produces propellants for military use, tested according to NATO standards and requirements. Military cartridges are evaluated under extreme cold conditions, down to -54 deg C / -65 deg F. In these conditions, heavy loads with N570 have shown increased pressure. Prioritizing safety, we advise the reloading community to adhere to the following precaution - due to the risk of high pressure in heavy loads, we do not recommend using N570 powder at temperatures below -20 deg C / -4 deg F. For heavy loads in cold temperatures, we suggest using N568 powder instead. All other N500-series powders are safe for use at any temperature, including those below 0 deg C / 32 deg F.

Utilize Vihtavuori N570 propellant in conjunction with .338 Lapua Magnum cartridges, optimized for projectiles with a mass of 19.4 g (300 grain) for enhanced ballistic performance

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