Remington Premier CuT, 300 Winchester Magnum, 180 Grain, Copper Tipped, 20 Round Box R22345 Premier CuT's monolithic copper alloy bullet gives high accuracy and terminal performance across all hunting ranges. Maximize your aerodynamic efficiency and weight retention with optimal penetration, lead-free. Loaded with Remington's best components, Premier CuT is your new copper tipped option for ultimate precision. Available in a lineup of popular big game centerfire cartridges, including 6.5 PRC, 7 PRC and 300 PRC.