Limited maximum danger range is another reason for using buckshot for deer hunting:
Here is an example from Montana:
Here is another DRT in a "semi-rural" setting. Notice the house in the upper right hand corner of the screen and pick up the shot at the .40 frame. This with 00B, load unknown. Stand hunting with buckshot is becoming quite common in many areas. This with today's tight patterning loads is changing how many view the effectiveness of conventional size buckshot on deer size game.