Winchester Small Rifle Primers 41

Winchester Small Rifle Primers 41

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Winchester NATO-Spec Military Primers 41 are the same primers used in the Lake City five.56mm ammunition. These primers are constructed to exacting specs for shot to shot consistency. All primers are continually and rigorously tested for regularity and sensitivity at temperatures and conditions far further than the range winchester 41 primers of normal use. Winchester ensures very carefully-controlled weights of primer mixtures, regularity in dimensions and excellent, exact measurements and tolerances for anvil heights and balance in extremes of temperatures and humidity.