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(50) pieces of new Starline 12.7x42mm (50 Beowulf) brass - Bulk Packaged.
The 12.7x42mm is a powerful big bore cartridge designed for use in AR style rifles. The brass case is essentially a lengthened 50 AE (1.650 long) with a rebated 7.62x39 style head. This brass case is designed to use a large magnum pistol primer.