Product DescriptionHodgdon Retumbo is a true magnum rifle powder designed for very large-capacity cases and relatively small bores, making it a strong choice for overbored magnum cartridges. This extruded propellant is part of Hodgdon's Extreme family, offering consistent performance across hot and cold temperature conditions. Shooters can expect higher velocities versus many other magnum powders (often cited in the 40-100 feet-per-second range, depending on bullet and primer selection).Product Highlights Magnum rifle powder engineered for large-capacity, overbored cartridges and big-game applications Extruded (stick) smokeless propellant designed to help deliver strong velocity potential Extreme series temperature insensitivity helps maintain consistency in hot and cold weather Optimized for cartridges such as .300 Remington Ultra Magnum, 30-378 Weatherby, and 7mm RUM 8 lb container size is ideal for high-volume reloaders and long-term load developmentSpecs Brand: Hodgdon Product Type: Smokeless rifle powder Series: Extreme Powder Form: Extruded Intended Use: Magnum rifle cartridges / large-capacity cases Container Size: 8 lb MPN: RET8 UPC: 039288506089Disclaimer: 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.