Winchester Smaller Rifle Primers forty one

Winchester NATO-Spec Armed service 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 frequently and rigorously tested for consistency and sensitivity at temperatures and problems considerably beyond the winchester 41 primers variety of ordinary use. Winchester guarantees very carefully-controlled weights of primer mixtures, consistency in measurement and excellent, exact measurements and tolerances for anvil heights and security in extremes of temperatures and humidity.