There are many .338 caliber cartridges on the market today. There is the 338x57 O'Connor, .338 Lapua Magnum, .338 Winchester Magnum, .338-06, .338 Remington Ultra Mag, and Shawn Carlock's .338 Edge… However, there is one 338 cartridge that is relatively new and impressing all who have had the opportunity to shoot it, and that's Jim Sloan's 338 Norma.
Mr. Sloan, (Texan Ballistic Guru) designed the 338 Norma loosely based on the 416 Rigby case and it is specifically designed to shoot the 300 grain Sierra Match King in a Remington 700 Long Action; without deep seating the bullet. The reason that the 338 Norma carries that title is because Mr. Sloan and Norma worked out an arrangement to have Norma manufacture the cartridge for entities inside the United States. As such, Mr. Sloan receives a small residual payment for his contribution.
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