Winchester Stallball 6.5 Rifle Powder is a spherical reloading powder for precision rifle cartridges, suited to load development for long-range target shooting and medium-game hunting. Temperature stability helps support consistent performance as conditions change, while uniform metering aids repeatable charges. Copper-fouling-reducing additives help limit barrel buildup during extended shooting. Designed for cartridges including 6mm Creedmoor and 6.5 Creedmoor, it offers high-velocity potential and low standard deviations for accuracy-focused shooting.