Provides superb accuarcy in most medium and heavy rifle loads and is the powder of choice for .30-06 and .338 calibers. Powder of choice for 270, .30-06 and .338. Excellent metering. Accurate and consistent in most medium caliber cartridges. Principal Purpose: Standard rifle. Secondary Uses: Light magnum rifle. Remarks: Superb in 30-06 and .338 Win Mag.