Winchester Compact Rifle Primers forty one
Winchester NATO-Spec Armed forces Primers 41 are the same primers used in the Lake Metropolis five.56mm ammunition. These primers are built to exacting specs for shot to shot consistency. All primers are consistently and rigorously examined for consistency and sensitivity at temperatures and circumstances much winchester 41 primers past the array of typical usage. Winchester assures diligently-controlled weights of primer mixtures, regularity in dimensions and excellent, exact measurements and tolerances for anvil heights and stability in extremes of temperatures and humidity.