Winchester Smaller Rifle Primers forty one
Winchester NATO-Spec Military Primers 41 are a similar primers used in the Lake Town 5.56mm ammunition. These primers are created to exacting specs for shot to shot regularity. All primers are consistently and rigorously tested for regularity and sensitivity at temperatures and problems far further than the selection of ordinary usage. Winchester ensures carefully-controlled weights of primer mixtures, consistency in dimensions and good quality, exact measurements and tolerances for anvil heights and winchester 41 primers stability in extremes of temperatures and humidity.