I love shooting my guns on my property, but always shoot where I know the bullets will not leave my property. We mainly shoot down into some draws and creek beds, and have set up targets at certain distances to do so. When I shoot my pistol, its always where there is an earth bank behind it.
One day we were shooting skeet and peppered a tin building were a neighbor was visiting (the property is vacant - he only comes every now and then) about 400 feet away. We could have been guilty of following the claybirds out of the intended direction on a couple shots, or maybe the guy just heard the shots and was lying. Regardless, we apologized profusely and made sure we shot in a safe direction. Haven't heard any more complaints.
Bottom line, gun owners should shoot safely and responsibly, and if they set it proper, the 2.5 acre tract should be sufficient. Shooting that close to a residence and more or less in that direction is poor judgment.