<p>Shoot a box of Remington® Core-Lokt® .243 Winchester® 100 Grain Centerfire Rifle Ammo to see why it has remained the leader in hunting ammunition for more than six decades. Core-Lokt ammo uses one of the most effective hunting bullets ever developed - the original controlled-expansion bullet design. A progressively tapered copper jacket is locked to a solid lead core to promote a perfectly controlled expansion and high weight retention after impact. Remington Core-Lokt Centerfire Rifle Ammo uses only premium brass cases, primers, and powders that you can rely on in any hunting environment.</p> <ul> <li class=>Proven big game hunting ammunition</li> <li class=>The original controlled-expansion bullet design</li> <li class=>Progressively tapered copper jacket</li> <li class=>Jacket locked to a solid lead core</li> <li class=>Controlled expansion and high weight retention</li> <li class=>Premium brass cases, primers, and powders</li> </ul>