Winchester Smaller Rifle Primers forty one
Winchester NATO-Spec Army Primers forty one are precisely the 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 for consistency and sensitivity at temperatures and ailments far past the choice of normal usage. Winchester guarantees very carefully-controlled weights of primer mixtures, consistency in dimension and good quality, exact measurements and tolerances winchester 41 primers for anvil heights and security in extremes of temperatures and humidity.