Winchester Little Rifle Primers forty one
Winchester NATO-Spec Army Primers forty one are the same primers Employed in the Lake City five.56mm ammunition. These primers are developed to exacting specifications for shot to shot consistency. All primers are frequently and rigorously examined for regularity and sensitivity at temperatures and circumstances significantly past the number of typical use. Winchester assures very carefully-managed weights of primer mixtures, regularity in size and good quality,
winchester 41 primers specific measurements and tolerances for anvil heights and stability in extremes of temperatures and humidity.