Winchester NATO-Spec Armed forces Primers 41 are precisely the same primers used in the Lake Metropolis five.56mm ammunition. These primers are constructed to exacting requirements for shot to shot regularity. All primers are consistently winchester 41 primers and rigorously analyzed for regularity and sensitivity at temperatures and circumstances

SIG SAUER element cases (22-250 brass) are constructed from premium American brass. These casings are rigorously tested to be certain 22-250 brass unparalleled durability and dependability. Every single 22 250 brass casing undergoes various in-line and postproduction high quality assurance screening, to guarantee a flawless reloading circumstance.