Rams are male bighorn sheep.  According to National Geographic, the iconic curled horns of a male bighorn sheep can weigh up to 30 pounds, which is “more than all the bones in his body combined.” From head to tail, rams usually fall somewhere between five to six feet long, and tend to weigh around 260 to 280 pounds. Female bighorn sheep have a petite set of horns and usually weigh about 30 to 40 percent less than their male counterparts.