Remington Core Lokt Tipped, 6.5 PRC, 140 Grain, Core-Lokt Polymer Tip, 20 Round Box R20043 Core-Lokt Tipped combines truer flight, flatter trajectory and devastating terminal energy. Big Green's polymer tip improves long-range ballistics, in-flight accuracy, and initiates rapid expansion. Its proven Core-Lokt jacket is tuned for optimal performance.