My grand-father was a farmer and operated an 100 acre farm. It has not been farmed in 50 or so years.
Keep looking for what to call it.
It is 2 + hours away from where we live. Not to far, nice to have as an option to get away. Family farm is not the right image. Family compound is not right either. Sounds like the Kennedy Compound (and I don't think they would sleep in the 1970s trailor or old farm house). Compound sounds even more odd when you are talking about firearms (like you are in a militia or something, not that there is anything wrong with that).