Winchester Smaller Rifle Primers forty one
Winchester NATO-Spec Military Primers 41 are exactly the same primers Employed in the Lake Town five.56mm ammunition. These primers are developed to exacting requirements for shot to shot regularity. All primers are continuously and rigorously tested for consistency and sensitivity at temperatures and winchester 41 primers ailments considerably beyond the variety of usual use. Winchester assures carefully-managed weights of primer mixtures, regularity in size and high quality, precise measurements and tolerances for anvil heights and stability in extremes of temperatures and humidity.