You only need a couple of acres on a very long, somewhat narrow lot.
Two acres is a bit under 10,000 sq yards, so if you had a lot 110 yards across, you could build your house, turn your back yard into the start of the range and push put a berm about 90 yards, down at the end of the garden.
Two acres is a bit under 10,000 sq yards, so if you had a lot 110 yards across, you could build your house, turn your back yard into the start of the range and push put a berm about 90 yards, down at the end of the garden.