Winchester Small Rifle Primers forty one

Winchester NATO-Spec Military Primers 41 are the exact same primers used in the Lake City 5.56mm ammunition. These primers are created to exacting technical specs for shot to shot regularity. All primers are continuously and rigorously tested for regularity and sensitivity at temperatures and conditions far beyond the selection of typical usage. Winchester assures thoroughly-controlled weights of primer mixtures, regularity in dimensions winchester 41 primers and good quality, precise measurements and tolerances for anvil heights and steadiness in extremes of temperatures and humidity.