Tree Spud
5 year old buck +
There is an out hole. I found where the round hit the dirt.
A .270 or .30-06 are the classic deer calibers. When you start your search, mark where you shot hum with a strip of toilet paper or survey tape. Then mark every spot you find blood. You will start to see a line of flight emerge.
Really clean bright red blood, possibly with bubbles would suggest lungs. Dark red blood could mean kindey/spleen/liver shoot. If it was a gut shoot, he will usually head for water. Gut shot deer you should give at least 10-12 hours before searching for them to allow them to die.
As a general rule, once hit, they will seek cover. If you find several spots where he has bedded and left some blood. He is hit but not an immediate fatal hit, you may want to back out and give him more time. If you see ravens or crows could be they have found him.
Good luck.