The thing is you may have hit her good but if she was extended out when you shot her and if there was a small entry and exit wound then what can happen is the hide can move back over the hole in the ribs and leave just little dribbles and the blood will clot between the hide and ribs and stop bleeding but she could be bleeding really bad internally so she could be dead or you could have just hit between the guts and vitals but thats along ways back from the shoulder.