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DESCRIPTION

338 Lapua Magnum Unprimed Rifle Brass Box of 50
by PETERSON CARTRIDGE COMPANY

Product Overview:

When Peterson Cartridge decided to come out with its own .338 Lapua Magnum casing they perceived that there was not a source of really good, match-grade, sniper quality .338 Lapua that was made in the US. Peterson decided that if they were going to produce .338s, they wanted theirs to be as good as or better than the best foreign-made .338 L M.

Peterson spent more than a year studying the casings of the best foreign manufacturers. Scores of tests were ran on annealing temperatures to get the grain structure just right. SAAMI, the standards organization for the industry, specs outside dimensions of casings but there are no specs on internal dimensions. So, Peterson cut casings in half and studied the internal geometry of the best, to uncover their secrets, and where possible, improve on them. In their lab they have an electronic machine that measures the force required to insert a projectile into the case mouth - what is called neck tension. This enabled them to ensure that their casings were optimal for bullet release. The end result is what is believe to be the most accurate shooting .338 Lapua Mag casings on the market.

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