Peterson Cartridge Peterson Unprimed Rifle Cases

Extremely consisten, American-made brass rifle casings designed for long-distance shooters. Here at Peterson Cartridge, we do a good business in "competition" calibers like those used for Precision Rifle Series (PRS), Extreme Long Range (ELR), Bench Rest competitions, F-Class competitions, etc. Regardless of the final use of our casings, hunting, target, or competition, each and every Peterson casing is built to match-grade specifications. This is one of the reasons why we offer some of our calibers, like .243, .260, 6.5 Creedmoor, and .308, in small rifle primer pocket size (SRP) for shooters who use these "hunting" calibers in competition. But, for you hunters who need dependable primer ignition in low temperature conditions, we also offer these with large rifle primer pockets (LRP).Please Note: There are both (.300 Win Mag) and (.300 Win Mag- Long) casings when selecting caliber from the drop down menu. The 300 Win Mag Long casings are made with a longer L-T-S dimension. All the other dimensions are SAAMI spec. But the longer L-T-S prevents the casing from stretching excessively on the 1st firing. The casing has more support, which translates to less stretching, which translates to longer case life.

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