I'm lucky enough to have been able to build a 25 yard shooting range out behind my house. I built it using two 8 inch by 8ft poles 3 1/2 ft in the ground with good used railroad cross ties lag bolted to the poles. I then placed a 4X8 ft sheet of 1/2 inch plywood across the face of the cross ties. I have shot it with handguns and with .223 and 30.06 rifles and as long as the rounds impact into the cross ties have had no penetration through as of yet. If the rounds go between the ties it will come out on the other side. I have placed some scrap plywood on the back side just to see if anything is coming through. The range is slightly downhill so anything that does penetrate goes into the backside of an old dried up stocktank. Any suggestions on how I might be able to improve it or make it a little safer? The nearest neighbor directly behind the backstop and tank dam is well over a mile away and on a slightly higher hill. All of my neighbors know I shoot and most are aware of my setup. (and have been ask to come by and shoot sometime) No one has complained YET, but if I do have to deal with the county Sheriff I want as many of my ducks in a row as possible.