257 ROBERTS BRASS for sale available to ship Dec 11, accepting back orders.
Factory new REMINGTON unprimed 257 ROBERTS brass cases, 50 PCS.
RELOADING PREPARATION: 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) before loading. Residue from the annealing process may leave a stain on the case neck that can be removed by tumbling. Annealing involves rapid heating and then cooling to impart the shell cases with the proper hardness to securely hold bullets in place and provide flexibility to expand and contract through multiple firings handloaders expect.