Daxter nothing wrong with getting a calf on an antlerless hunt. I have shot many a calf on antlerless hunts. Best elk meat ever. Also better than shooting the cow if you ask me. Congratulations on your first elk. I got my first muzz elk this year. Although I have taken many cows with my rifle, this year was my first for a muzz. It was also a calf. I have one more cow tag for rifle but I may use a muzzloader for fun.