In terms of semi-auto ammunition, this round is capped by a full metal jacket bullet, which is the standard bullet. The jacket has a sharp tip for improved accuracy and a cannelure to prevent the bullet from moving in its case. Lead is used to make the core of the FMJ. There isn’t any steel in there to cause a magnet to work!

Winchester uses non-corrosive Boxer primers and clean-burning propellant to ensure a constant point of aim and recoil. They use reloadable, brand-new brass casings. Because of their discolored necks, some people are wary of military-grade cases, but they shouldn’t be! Winchester neglected to polish these cases after they were annealed for increased strength, which is why they appear that way.