Winchester Compact Rifle Primers forty one
Winchester NATO-Spec Military services Primers forty one are a similar primers used in the Lake Metropolis five.56mm ammunition. These primers are built to exacting specs for shot to shot consistency. All primers are regularly and rigorously analyzed for regularity and sensitivity at temperatures and conditions far over and above the choice of normal use. Winchester assures cautiously-controlled weights of primer mixtures, regularity in size and high quality, precise measurements and tolerances for anvil heights and stability
winchester 41 primers in extremes of temperatures and humidity.