Starline 50 BEOWULF Brass (12.7x42MM)

Starline 50 Beowulf Brass

Starline 50 Beowulf bulk brass delivers the power and precision reloaders expect when working with one of the most potent big bore cartridges for AR-style rifles. Originally developed for superior terminal performance in close-range applications, the 50 Beowulf features a rebated rim design and uses a case lengthened from the .50 AE to 1.650″, making it compatible with standard AR-15 bolt faces like those used with the 7.62x39mm.

Designed to utilize a large magnum pistol primer, Starline 50 Beowulf brass is crafted with consistent metallurgy, exacting tooling, and rigorous quality control standards backed by over 30 years of experience. Each case is produced to meet tight tolerances in length, diameter, and flash hole presence, providing reloaders with dependable and repeatable results. Starline vertically draws its brass to reduce wall thickness variation and improve overall structural integrity, especially under high-pressure loads.

This brass also features the 12.7x42mm headstamp, a critical spec for those adhering to labeling preferences or import/export requirements. Whether you’re building loads for hunting, home defense, or range use, Starline’s 50 Beowulf brass offers the strength and consistency needed to support powerful, heavy-grain projectiles with excellent reliability in semi-automatic platforms.

When it comes to selecting top-tier brass for your 50 Beowulf reloading needs, Starline is a trusted name among shooters who value precision and performance.

OAL: 1.647″ – 1.652″

* This is NOT loaded or primed ammunition *