Nosler 300 SA Ultra Mag Premium Brass (25ct)

Nosler 300 SA Ultra Mag Premium Brass (25ct)

The Nosler 300 SA Ultra Mag Premium Brass (25ct) provides match-grade cartridge cases engineered for reloaders who demand precision, power, and reliability. Crafted from premium brass and manufactured to Nosler’s exacting dimensional standards, each case is fully prepped—trimmed, chamfered, deburred, and annealed—so it’s ready for immediate use in rifles chambered for the 300 SA Ultra Mag cartridge.

Designed specifically for the 300 SA Ultra Mag platform, this brass features uniform neck wall thickness, concentric neck geometry, and precise head dimensions to ensure consistent internal volume and controlled chamber pressure. These attributes are essential for building flat-shooting hunting loads or high-energy match rounds. Clean primer pockets and flash holes promote reliable ignition and tight velocity consistency across multiple reloads.

Nosler’s annealing process reinforces the neck and shoulder areas to preserve proper neck tension and minimize springback during repeated reload cycles. Whether you’re loading lightweight varmint rounds or heavy big-game projectiles, this brass delivers consistent bullet seating and secure chamber fit. The robust construction supports repeatable performance shot after shot when using the 300 SA Ultra Mag brass.

Packaged in a 25-count box, Nosler 300 SA Ultra Mag Premium Brass is compatible with all standard reloading dies and equipment for this caliber. The factory-prepped finish saves reloaders valuable time at the bench by eliminating initial trimming or chamfering. Dimensional uniformity and match-grade consistency make this brass a top choice for precision shooters and high-volume handloaders alike.

Each production lot undergoes rigorous quality control to ensure consistent metallurgy, wall thickness, and headspace tolerances straight from the box. Reloaders will benefit from reduced case-to-case variation and improved bullet alignment—translating to tighter groupings and enhanced accuracy downrange with 300 SA Ultra Mag ammunition.

This is a brass component only and is not loaded ammunition. It does not include bullets, powder, or primers. This brass provides serious reloaders with a dependable, high-quality foundation—ideal for maximizing accuracy, consistency, and performance with the 300 SA Ultra Mag cartridge.