Vihtavuori N570 Powder 1 lb Canister Vihtavuori N570 is a clean-burning, temperature-stable, double-base extruded rifle powder designed for extreme long-range cartridges and very large-capacity cases. Built to deliver maximum velocity with heavy bullets, N570 provides the consistency and energy required for top-tier long-range performance. Overview Formulated for the largest magnum and overbore cartridges, N570 offers exceptional velocity potential while maintaining stable pressures across a wide temperature range. Its clean-burning characteristics and uniform ignition make it a strong choice for extreme long-range competition and high-performance precision shooting. Best Uses & Typical Calibers.300 PRC.300 Norma Magnum.338 Lapua Magnum.338 Norma MagnumOther very large-capacity magnum cartridges Key BenefitsClean-burning for reduced fouling and easier maintenanceExcellent lot-to-lot consistency for predictable load developmentTemperature stability for reliable velocities in varied conditionsOptimized for extreme long-range cartridges and very heavy bullets Reloading Notes Always consult reputable published load data for your specific bullet and cartridge. Begin at the listed starting charge and work up carefully while watching for pressure signs. Use proper safety practices and components matched to your application. Powders are non-returnable