Winchester Smaller Rifle Primers forty one

Winchester NATO-Spec Navy Primers forty one are the exact same primers used in the Lake Metropolis five.56mm ammunition. These primers are built to exacting specs for shot to shot regularity. All primers are constantly and rigorously tested winchester 41 primers for consistency and sensitivity at temperatures and problems considerably beyond the array of usual use. Winchester guarantees very carefully-controlled weights of primer mixtures, consistency in dimension and good quality, exact measurements and tolerances for anvil heights and security in extremes of temperatures and humidity.