Winchester StaBALL HD represents a double-base, temperature-insensitive ball powder that maintains unwavering stability even in extreme hot or cold conditions. Designed as a slow-burning Magnum powder, it offers an ideal loading density tailored to the needs of large capacity Magnum cartridges, ensuring a consistent burn rate. This characteristic aligns perfectly with cartridges like the 6.5 PRC, 7mm Remington Magnum .300 PRC and more. Exemplifying the key features of ball powders, StaBALL HDs precise metering plays a crucial role in enhancing velocity and reducing standard deviations-two essential factors for achieving match grade precision. Demonstrating a commitment to environmental responsibility, StaBALL HD adheres to reach standards and incorporates copper fouling reducer additives, enabling extended shooting sessions without requiring frequent bore cleaning. Depending on-the cartridge, it can achieve velocity levels that outpace other propellants in its category by 75-100 fps. As a result, the StaBALL family suCCInctly embodies Stability, precision and Speed.