These are now some pretty old photos, thank God, because they do indicate (through their age) that we "won" in that there are no longer enough of them to offer good shooting. So, yes, we "won", but not by shooting them. While great good fun, shooting rats in an effort to eliminate them is a fool's errand. If there are enough of them that they actually present targets, you will never get on top of them by shooting.
A more realistic and effective approach is, actually, poison. There are a number of eco-friendly poisons available that will not harm predators that eat the dead rats. I cannot remember the one we used, but just do some "googling". While the poison spoiled my fun, it did finally eliminate the rats. Good luck.