100 factory new REMINGTON unprimed 222 Remington Magnum brass cases.
History: Introduced in 1958 in the Model 722 and later a brief appearance in the Remington Model 700 rifles. Original design did have the military in mind but was determined that the cartridge length of 1.85 inches was to long for the AR-15 system, this is what lead to the development of the 223 Remington which has a case length of 1.76 inches.
Brass case mouths MAY not be perfectly round from the manufacturing process, this can be corrected by running brass through the size die (always recommended) prior to loading. Residue from the annealing process may leave a stain on the case neck that can be removed by tumbling. Annealing involves rapid heating then cooling to impart the shell cases with the proper hardness to securely hold bullets in place and provides flexibility to expand and contract through multiple firings handloaders expect.