Allen Cases Crossbow Cocking Rope Whether you want to save your hands or you need a bit of help cocking your bow, Allen’s Crossbow Cocking Rope is easy to use and reduces draw weight by up to 50%. Features oversized handles for better grip and control, plus it helps ensure that your bow is evenly cocked, which increases accuracy. The molded string hooks will not damage the rail. For use with most crossbows.