RWS Copper-Matrix handgun ammo is a frangible load specifically made to be a target load, intended to provide a fully lead-free/steel-safe shooting experience. The line is the Sintox Lead Free Boxer primers. These primers were designed to minimize or eradicate light strikes (misfires), and are the only lead-free primers used in NATO qualified ammo. The technology behind the Sintox primer is another crucial advantage for shooters; with its superior performance in even the harshest of conditions, whether it is low temperatures or extended periods of storage.