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This is what I was going to say, although I don’t imagine ever a time I would need to breach a door.
You can also breach by shooting the area between the doorknob and the lock and doorjamb. The vents also allows gases to safely escape when you stick the muzzle up against the door. I know that police use frangible breaching rounds for this purpose to prevent ricochet or injury to someone on the other side of the door, but if that’s not an issue buckshot works just as well.