These are new lower strength compound models with a reduced draw weight of around 85lbs compared to a standard compound of 150lbs. The distance is achieved by using a smaller lighter more aerodynamically designed bolt and even ball bearings. These compounds have the advantage of being easy and quick to cock without placing any strain on the shooter or the need for a cocking device. This will allow the shooter to release more bolts and reload quicker than the traditional recurve or compound.