What standard do you use to determine the maximum range you will take a shot with #4B?
40 yards max if they are standing still or walking broadside. 20 yards if running broadside to me. Never any Texas Heart shots or angle shots. If a person is stealthy (as they should be), just like bow hunting; just wait until they present a broadside shot (as I always do/did with a rifle/handgun anyway)
It is notable that in later years, I mostly reverted to rifles/handguns for deer for the reason that I had become so enmeshed in shooting sports, it seemed more like a sport than meat-gathering. Nevertheless, if my primary reason was to get meat each year, I would revert to 12 guage, 3-inch, with 41 pellets of #4.