50 factory new STARLINE unprimed 243 Winchester brass rifle cases.
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HISTORY: Evolved from the 308 Winchester with credit going to Warren Page with his experiments wildcatting the 308 in the 1950’s. Warren’s pet name for the 24 caliber was the “Super Pooper”, when standardized by Winchester a better name was selected, the 243 Winchester. In order to stabilize heavier bullets 1:10 rifling twist was used by Winchester and producing minimal recoil propelled the 243’s popularity with hunters and reloader’s alike.
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.