Winchester Smaller Rifle Primers forty one

Winchester NATO-Spec Military Primers 41 are precisely the same primers Employed in the Lake City 5.56mm ammunition. These primers are designed to exacting specs for shot to shot consistency. All primers are consistently and rigorously analyzed for regularity and sensitivity at temperatures and conditions far past the choice of ordinary use. Winchester assures cautiously-controlled weights of primer mixtures, regularity in size and quality, precise measurements and tolerances for anvil heights and stability in extremes of winchester 41 primers temperatures and humidity.