Per wiki:
“In popular usage, point-blank range has come to mean extremely close “can’t miss” range with a firearm, within four feet of its muzzle at moment of discharge yet not close enough to be a contact shot.[1]”
Good thing, that wikipedia, the open sourced bastion of (sic) knowledge!
In real ballistics and terminal performance there is an actual definition, not common usage by the television experts. Words have meaning.