The Winchester Copper Impact rifle ammo in 30-06 Springfield, 180 gr, from the Copper Impact series delivers a hunting round designed for serious deer and elk hunters who demand rapid knockdown and reliable long-range performance, and you'll notice the Copper Extreme Point lead-free bullet with a large polymer tip promotes accelerated expansion and big initial trauma while the boattail and high ballistic coefficient sustain a flat trajectory and stable flight out to extended ranges; rated at about 2725 fps and roughly 2967 ft-lbs of energy at the muzzle, this load transfers significant energy on contact and its solid copper construction retains weight for deep penetration through hide and bone, making shot placement more forgiving on tough game. The brass casing and conventional primer system feed smoothly in bolt-action and single-shot rifles, and the enhanced terminal performance offers hunters confidence on late-season elk or whitetail hunts where hydrostatic shock and wound channel size matter; if you hunt public land, guides, or backcountry terrain and want a lead-free, high-performance option, the Winchester Copper Impact series is tailored to ethical, effective big-game shots from medium to long ranges.