I always here people say....never give up on a blood trail. Yeah you may have hit bone and like arrow said it depends on the temp. Check the overnight weather. I had a similar situation. A gut shot where I did not hit vitals. However the deer took off back in the direction it came from heading back up to its bedding area. She went about 300 yards and laid down. It took another arrow. Anyway, I didn't find REALLY good blood until about 200 yards away. I found her trail first and then followed that. Anyway, keep that in mind when you go look again. Good luck!!!