satx78247,
May I suggest you reread the OP.
He is asking about home defense.
He is not asking about a family farm.
ZX9RCAM,
Not only was our farmhouse our home back then but in suburbia, you may well be PREYED UPON by roving gangs of thugs & HAVE to shoot out into your yard.
I'd guess that it depends on what you mean by "home defense". = Just the house itself or including the surrounding lawn, too.
(Some private properties in Bexar County are 2-10 acres.)
yours, satx