Winchester Small Rifle Primers 41

Winchester NATO-Spec Army Primers 41 are the same primers used in the Lake Town five.56mm ammunition. These primers are designed to exacting requirements for shot to shot consistency. All primers are continually and rigorously tested for regularity and sensitivity at temperatures and problems much past the selection winchester 41 primers of regular use. Winchester guarantees cautiously-managed weights of primer mixtures, consistency in dimensions and good quality, specific measurements and tolerances for anvil heights and security in extremes of temperatures and humidity.