All depends on the shot. I have shot them when they fell dead on the spot. I have also shot them and had to track them for miles. If you make a good shot and it falls not far from you, keep your eye on him and let him set for a while 5-30min.. If you question the shot then wait for up to 30 min to an hour, some wait even longer (hours). Let him laydown close to expire. It will make your life much easier when it comes to finding him. I made this mistake once. I shot a buck that ran, he fell about 100 yards away. I got excited and went after him after only waiting 10min. He jumped up and ran. It took me all day to find him. He was about 4 miles from where I shot him. If I had waited longer I wouldnt have spent my day tracking.

Lifes a garden, dig it.