That rule is aimed at people like me who own a 338 Lapua Magnum, or even worse a 50 bmg. City ranges suck. Its one of the best things about where I live. One range that is free.....and I will not go to it. Another range thats just outside of town that goes to 500 yards. Then finally a private range with steel targets out to 1400 yards and all the wind you could ever want to shoot in.