LAPUA 338 NORMA MAGNUM BRASS Based on the .416 Rigby case, the 338 Norma Magnum was developed by J. Sloan and D. Kiff as a long-range sporting cartridge. Norma adopted the design and standardized it with CIP in 2010. The US military has spurred the development some machineguns chambered for the .338 Norma, which would be capable of providing superb long-range shooting capability. With Lapua's unmatched standard of quality, handloaders will find our .338 Norma Magnum cases a choice for ELR and other extreme long-range shooting applications. Lapua's .338 Norma Magnum case takes the Large Rifle Primer (LRP). It is available in the new cardboard 100 p Mfg: Lapua