Product Description Winchester StaBALL HD is a temperature-insensitive, double-base ball (spherical) smokeless rifle powder engineered for consistent performance in extreme hot or cold conditions. This slow-burning magnum powder is designed to deliver optimal loading density in large-capacity magnum cartridges suited to its burn speed, helping reloaders achieve precise metering, improved velocity, and lower standard deviations that support match-grade accuracy. Product Highlights Temperature-insensitive rifle powder designed to stay stable in extreme heat or cold. Double-base ball powder meters precisely for consistent charge weights and repeatable results. Slow-burning magnum burn rate supports optimal loading density in large-capacity cartridges. Ideal for popular magnum/long-range cartridges such as 6.5 PRC, 7mm Remington Magnum, and 300 PRC. Built for precision-minded reloaders seeking improved velocity and lower standard deviations. Specs Brand Name: Winchester Powder Product Type: Smokeless rifle propellant (ball/spherical powder) Base: Double-base Burn Rate/Application: Slow-burning magnum rifle powder Net Weight: 1 lb Container Volume: 750 cc Suggested Cartridges (examples): 6.5 PRC, 7mm Remington Magnum, 300 PRC Country of Manufacture: USA UPC: 039288504610 Manufacturer Part Number: STABALLHD1 Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.