Winchester Staball HD Rifle Powder 8lb Container - Temperature Stable

Winchester Staball HD rifle powder delivers consistent velocities across extreme temperature ranges, making it ideal for precision shooters who demand reliable performance. This temperature-stable propellant maintains velocity within 1 fps per degree Fahrenheit, significantly outperforming traditional powders that can vary by 2-3 fps per degree.

What Makes This Different

Staball HD utilizes Winchester's advanced spherical powder technology with copper-reducing additives that minimize fouling and extend barrel life. Unlike conventional powders that lose consistency in temperature swings, this formulation maintains uniform burn rates from -40°F to 125°F. The spherical granules meter more consistently through powder measures, reducing charge weight variations by up to 40% compared to extruded powders.

Key Features

• Temperature stability within ±1 fps per degree Fahrenheit change
• Copper-reducing additives minimize barrel fouling and extend cleaning intervals
• Spherical granules provide consistent metering through all powder measures
• Optimized for cartridges like 6.5 Creedmoor, .308 Winchester, and .30-06 Springfield
• 8-pound container provides approximately 1,000+ rounds of .308 Winchester loads
• Low flash signature reduces muzzle flash for tactical applications
• Manufactured to SAAMI specifications with lot-to-lot consistency

Field testing demonstrates Staball HD's ability to maintain sub-MOA accuracy across temperature extremes that would cause other powders to shift point of impact. Competition shooters report consistent velocities during all-day matches where barrel temperatures fluctuate significantly. The reduced copper fouling extends accuracy life between cleanings, particularly beneficial for high-volume shooting sports and tactical training.

Technical Specs

• Weight: 8 pounds (3.6 kg)
• Powder type: Double-base spherical propellant
• Burn rate: Medium-slow, similar to IMR 4064
• Bulk density: Approximately 0.95 g/cc
• Recommended cartridges: 6.5 Creedmoor, .308 Win, .30-06, 6.5 PRC
• Storage temperature: -40°F to 150°F
• Manufactured: United States
• Lot number tracking for consistency verification

Staball HD represents Winchester's commitment to precision reloading with measurable performance advantages over conventional powders. The 8-pound container offers serious reloaders substantial cost savings while ensuring lot consistency for load development.