Winchester Smaller Rifle Primers 41

Winchester NATO-Spec Navy Primers 41 are precisely the same primers used in the Lake Metropolis five.56mm ammunition. These primers are created to exacting specifications for shot to shot consistency. All primers are winchester 41 primers continually and rigorously analyzed for consistency and sensitivity at temperatures and conditions significantly beyond the choice of standard use. Winchester assures meticulously-managed weights of primer mixtures, consistency in dimensions and top quality, exact measurements and tolerances for anvil heights and security in extremes of temperatures and humidity.