Starline Brass 357 Magnum Unprimed Cases - 100 Count Bag

The Starline Brass 357MEUP100 delivers consistent performance for serious handloaders who demand precision in their .357 Magnum ammunition. These unprimed brass cases provide the foundation for accurate, reliable cartridges that meet exacting standards shot after shot.

What Makes This Different

Starline brass cases undergo a proprietary manufacturing process that creates uniform wall thickness and precise dimensional tolerances. Each case features consistent flash hole diameter and primer pocket depth, eliminating the variables that plague mixed headstamp brass. The result is measurably improved accuracy and velocity consistency compared to range pickup brass or inferior manufactured cases.

Key Features

• 100 count bag of new, unprimed .357 Magnum brass cases
• Uniform wall thickness for consistent powder capacity
• Precise flash hole diameter of 0.080 inches
• Standard small pistol primer pocket depth
• Compatible with all .357 Magnum chamber specifications
• Ready to load - no sizing required on first loading
• Made from high-quality cartridge brass alloy

These cases excel in both target shooting and hunting applications where accuracy matters most. Competition shooters rely on Starline's dimensional consistency to achieve tight groups, while hunters appreciate the reliable ignition and velocity consistency that translates to confident shot placement. The brass maintains its integrity through multiple reloading cycles when properly maintained, making it cost-effective for high-volume shooters.

Technical Specs

• Caliber: .357 Magnum
• Case length: 1.290 inches
• Primer type: Small pistol
• Flash hole diameter: 0.080 inches
• Material: Cartridge brass (70% copper, 30% zinc)
• Quantity: 100 pieces per bag
• Condition: New, unprimed
• Manufactured in the USA

Starline's reputation for quality control and consistency makes these cases the preferred choice for discriminating handloaders. The investment in premium brass components pays dividends in improved accuracy and reduced load development time.