Age and nutrition childers, age and nutrition. Some deer have already dropped thier antlers while some won't loose their antlers until the new growth pushes off this years around April.

Whitetails, like moose, elk, caribou and many others loose thier antlers every year and grow new ones that usually are much larger from the year previous depending on nutrition and genetics. They grow 25 pointers because that particular animal has some years on him, good genetics and nutrition. I hope that helps.